1
SWITCHBOARD INSTRUMENTS
POWER TRANSDUCERS CURRENT & POTENTIAL TRANSFORMERS
HYBRID ELECTRONIC METER PANEL METERS
2350 POWER SERIES DIGITAL METERS PORTABLE TESTERS
ADDITIONAL YOKOGAWA PRODUCTS
To obtain additional catalogs or bulletins, please use the business reply card inserted in this catalog, or
call 1-800-258-2552x575 for immediate assistance and technical support.
Yokogawa Juxta Power Transducers are featured in
this catalog. They are UL recognized and enclosed in
a rugged metal case with either 0.2% or 0.5% accura-
cy. For complete information, including other models
and ratings, request catalog BU-JAC-05E.
Yokogawa CT’s and PT’s are also featured in this
catalog and provide high accuracy inputs to our
transformer-rated AC switchboard instruments and
power transducers. Request bulletin 500CTPT-B
for additional models and specifications.
The 2302 hybrid electronic meter was designed for a
variety of applications where both analog and digital
display information is required. Available with either
yellow or green bargraph and backlighting, or mono-
chromatic LCD bargraph with backlighting. For infor-
mation please request bulletin 2302-E.
Yokogawa has the broadest line of panel meters
available today. In many cases, our panel meters
are completely interchangeable with other manu-
facturer’s products. UL and IP54 splash resistant
models available. For more information,
request catalog 250260PM-B.
The 2350 Series Digital Panel meters provide high
accuracy readout of AC and DC inputs and are capable
of re-transmitting analog signals to remote monitors,
recorders and control systems. Available in 1/8 and 1/4
DIN case with single and multifunction capability.
Request bulletin 2350PS-C for more information.
Catalog BU-INST-3E features digital multimeters and
clamp-on testers, earth and ground resistance testers,
thermometers, insulation testers, digital light meters
and tachometers, decade resistance boxes, and
wheatstone bridges.
AND OPTIONS
AVAILABLE
2
SWITCHBOARD INSTRUMENTS
AB/DB Switchboard specifications in accordance with ANSI C39.1
Accuracy: ±1.0% of full scale basic accuracy class.
Specific accuracies:
Rectifier type meter- ±1.5% @ 25˚C calibrated to sine wave.
Expanded Scale Voltmeter- 0.3% of mid-scale.
Power factor meter- ±1% of scale length from 20-100% of rated current
on balanced system models; ±3% of scale length on unbalanced system model types.
Synchroscope- ±1% of scale length.
Frequency meters- ± .15Hz @45-55Hz and 55-65Hz, ±0.093Hz @
58-62Hz, ±1.5Hz @350-450Hz.
Position of use: Vertical (scale)
Full scale deflection angle: 250˚, except synchroscope is 360˚
Full scale length:
AB/DB40, AB/DB14, AB/DB17- 6.9 inches.
AB/DB16- 13.8 inches.
Scale plate: AB/DB40, AB/DB14 platform type 2 piece scale with
graduations on the outer scale; numerals and legends on the inner
scale. AB/DB16, has a one piece platform scale, AB/DB17 see page 8.
Case: All AB/DB switchboard instruments have drawn steel case with
zinc chromate coating except AB/DB40 plastic case which is ABS.
Cover: AB/DB14, AB/DB17 metal cover with polycarbonate window.
AB/DB16, AB/DB40 polycarbonate-UL94V-0 cover and window.
Terminal plate: phenol resin material.
Mounting studs: 1/4” x 28 thread.
Terminal studs: 10-32 thread.
Operating temperature range: 0 to 40˚C (32 to 104˚F).
Storage temperature range: -10 to 50˚C (14 to 50˚F).
Extreme temperature range: -20˚C to 65˚C (-4 to 149˚F).
Dielectric level: 2300VAC for 1 minute between the electrical circuit and mounting
studs.
Overload rating: Voltmeter and potential coils-1.2 x rating (continuous).
AC Ammeters- 2 x rating (continuous), and 10 x rating for one second.
Current coils (other than ammeters) 1.5 x rating (continuous), and 10 x
rating for one second.
Response time: Approximately 2.5 seconds (except AB/DB16)
Model Type AB/DB40 AB/DB40 AB/DB16 AB/DB17 AB/DB14 T/180 T/2180 T/2491
Case style 41⁄4” Metal 41⁄4” Plastic 83⁄4”Illuminated High-shock 6” Edgewise Mini-swbd. 41⁄4” Digital
See AB/DB general specifications below See contents below
Input rating
AC Milliamperes X X X X†X X X N/A
AC Amperes X X X X†XXXX
AC Voltage X X X X†XXXX
DC Microamperes X X X N/A X X X N/A
DC Milliamperes X X X X X X X N/A
DC Amperes X X X X X X X N/A
DC Millivolts X X X X X X X N/A
DC Voltage X X X X X X X N/A
Frequency X * X * * * X X
AC Watts X * X * * * * X
AC VARS X * X * * * * X
Power Factor X * X * * * X X
RTD Temperature X * X * * * * N/A
AC Synchroscope X N/A X N/A N/A N/A N/A N/A
RPM Indicator X X X X X X X N/A
Process indicator X X X X X X X N/A
Ground detector X X X X N/A X X N/A
Notes: * Requires external transducer, X = available, N/A = Not available in this model, †= rectifier type.
CONTENTS
AB/DB Switchboard Instruments
Page 2 Selector guide, general specifications, catalog contents.
Page 3 Key to Switchboard numbering system, how to order,
shipping and storage weights.
Page 4-7 AC/DC Ammeters, Voltmeters, Tach. indicators.
Page 8 AB/DB17 general ratings and specifications.
Page 9 Power Factor, Frequency meters,
Synchroscopes, Temperature meters.
Page 10 AC Wattmeters and Varmeters.
Page 11-16 Application guide for selection of Wattmeters
and Varmeters.
Page 17 Optional features for AB/DB40 and AB/DB16.
Page 18 Switchboard minimum / maximum ratings.
Page 19 Switchboard specification and burden data.
Page 20-22 Standard connection drawings for AB/DB40 and AB/DB16.
Page 23-24 Dimensions and panel cutout drawings.
Type 180 Edgewise Instruments.
Page 25-27 General specifications, catalog numbers,
Optional features, dimensions and cutouts.
Type 2180 Miniature Switchboard Instruments
Page 28-29 General specifications, ordering information,
dimensions and panel cutout.
Type 2491 Digital Switchboard Instruments
Page 30-33 General specifications, ordering information,
outline and panel cutout dimensions,
connection diagrams.
Type 2469/2489 Power Transducers
Page 34-35 General specifications and catalog numbers.
Current and Potential transformers, DC Shunts, Multipliers
Page 36-37 Ordering information
SWITCHBOARD INSTRUMENT SELECTOR GUIDE
3
Digits 1, 2, & 3 Type
101-TB-AB/DB14
102-P&J AB/DB17
103-TB-AB/DB40
106-P&J-AB40 Synch.
120-P&J-AB16 Synch.
121-TB-AB/DB16
Digits 12, 13 &
14-Spcl Units
When used, these denote
unique models. Refer to
factory for details. For
Wattmeters & Varmeters,
see pages 11-16.
Digit 11 - Factory
Style No.
For factory use.
Digits 9 & 10 - Scale
Ex: FA = 0–1mA
FX = 0–5mA
(see note 2)
Digits 7 & 8 - Elec. Rtg.
Ex: LA = 1A
LE = 2A
LS = 5A
(see note 2)
Digit 6 Mechanical Features
1-Zero left, black cover
2-Zero center, black cover
3-Zero left, gray cover
4-Zero center, gray cover
5-Zero left, antiglare, black cover
6-Zero center, antiglare, black cover
NOTES:
1.This tabulation is not all inclusive, to be used for
defining cat. nos. only
2.For watt & var cat. nos. digits 7–10 & 12–14 desig-
nate rating-cal watts-scale & legend information
3.TB = taut band movement
4.P&J = pivot & jewel movement
5.“/P” suffix denotes plastic case
• Low Cal Watts, Zero Center
Digits 4 & 5 Measured Qty.
01-DC Volts
02-AC Volts
07 Voltmeter (expanded scale)
11-DC Amps
12-DC Millivolts
13-AC Amps
19-Supp. Zero
21-2W1P Watts 1 EL
22-3W3P Watts 2 EL
25-4W3P Watts 2
1
⁄
2
EL
28-3W3P Vars (cross phase) 2 EL
29-4W3P Vars (cross phase) 2
1
⁄
2
EL
31-2W1P Vars 1 EL
32-3W3P Vars (external phase shifter) 2 EL
34-4W3P Vars (external phase shifter) 2
1
⁄
2
EL
37-Freq. Meter
40-Power Factor 3W3P & 4W3P (balanced)
41-Power Factor 2W1P
45-Synchroscope
46-Power Factor-3W3P (unbalanced)
47-Power Factor-4W3P (unbalanced)
50-Temp. Ind.
62-DC Tach. Ind.
63-AC Tach. Ind.
70-2WIP Watts • 1 EL
71-3W3P Watts • 2 EL
73-4W3P Watts • 2
1
⁄
2
EL
74-4W3P Vars • (cross phase) 2
1
⁄
2
EL
76-2W1P Vars • 1 EL
77-3W3P Vars • (for use w/external phase shifter) 2 EL
79-4W3P Vars • (for use w/external phase shifter) 2
1
⁄
2
EL
81-3W3P Vars • 2 EL (cross PH)
Key to AB/DB Switchboard Numbering System (See Notes)
1XX XX 7XXX
103 01
How to Order —
Specify the following:
1. Complete catalog number, or;
2. Provide significant portion of catalog number with word
description for differences (e.g. ”Similar to 103111FAFA,
except scale 0-100 kilovars”), or
3. Provide word description including the
following information:
Type: AB/DB-14, 16, or 40
Rating (Input):.....................Amperes AC or DC .....................
Volts AC or DC..........................................................................
Frequency: 60 Hz, 50 Hz, 400 Hz........................................Hz
Scale: Min. Value - Max. Value, Zero left,
Zero-center or offset zero
Legend: Specify words and/or symbols exactly
Potential Transformer Ratio: ...............................to 120 volts
or........................................to ...........................................volts
Current Transformer Ratio:...............................to 5 amperes
or........................................to.....................................amperes
Circuit: 2-wire/single-phase, 3-wire/3 phase.
3-phase/4-wire.................................................................other
External Devices; phase Shifting transformers, shunts
transducers, etc.........................................................................
Other Options: ..........................................................................
Special features ........................................................................
Shipping & Storage Weights
*AD/DB-40 AD/DB-16
Instrument Net Ship Net Ship
(lbs) (kg) (lbs) (kg) (lbs) (kg) (lbs) (kg)
DC-A/V 1.5 .70 2.4 1.1 3.0 1.4 5.0 2.2
V 1.7 .79 2.7 1.2 3.4 1.5 5.0 2.2
A 1.8 .84 2.7 1.2 3.4 1.5 5.0 2.3
1ø 2.8 1.3 3.6 1.7 4.4 2.0 6.0 2.8
3ø3W 3.0 1.4 3.9 1.8 4.6 2.1 6.3 2.9
3ø4W
Power Factor 2.0 .95 3.0 1.4 3.6 1.7 5.3 2.4
Frequency 1.8 .82 2.7 1.2 3.3 1.5 5.0 2.3
Temperature 2.0 .95 3.0 1.4 3.6 1.7 5.3 2.4
Tachometer 1.6 .80 2.7 1.2 3.3 1.5 5.0 2.3
Synchroscope 3.9 1.8 4.8 2.2 5.5 2.4 7.1 3.2
*Subtract 0.5 lbs. for plastic case amp & volt.
Approximate Package Size in Inches / Centimeters
All AB/DB
(Except AB-/DB-16)............................................................................6 x 6 x 11 / 15 x 15 x 28
Shipping.............................................................................................7 x 7 x 13 / 18 x 18 x 33
AB-/DB-16 ...........................................................................................10 x 10 x 11 / 25 x 25 x 28
Shipping.........................................................................................11 x 11 x 13 / 28 x 28 x 33
AC
WATT/
VAR
SWITCHBOARD INSTRUMENTS
4
SWITCHBOARD INSTRUMENTS
Rating (Amperes) Scale (Amperes) AB-14 Cat. No. AB-40 Metal Case AB-40 Plastic Case AB-16 Cat. No.
Self-Contained, 40/70 Hz
1 0–1 101 133 LALA 103 131 LALA 103 131 LALA7/P 121 131 LALA
1.5 0–1.5 101 133 LCLC 103 131 LCLC 103 131 LCLC7/P 121 131 LCLC
2 0–2 101 133 LELE 103 131 LELE 103 131 LELE7/P 121 131 LELE
3 0–3 101 133 LJLJ 103 131 LJLJ 103 131 LJLJ7/P 121 131 LJLJ
5 0–5 101 133 LSLS 103 131 LSLS 103 131 LSLS7/P 121 131 LSLS
7.5 0–7.5 101 133 MFMF 103 131 MFMF 103 131 MFMF7/P 121 131 MFMF
10 0–10 101 133 MTMT 103 131 MTMT 103 131 MTMT7/P 121 131 MTMT
15 0–15 101 133 NDND 103 131 NDND 103 131 NDND7/P 121 131 NDND
20 0–20 101 133 NGNG 103 131 NGNG 103 131 NGNG7/P 121 131 NGNG
30 0–30 101 133 NLNL 103 131 NLNL 103 131 NLNL7/P —
Transformer-Rated, 40/70Hz (see Current Transformers on page 36)
5 0–10 101 133 LSMT 103 131 LSMT 103 131 LSMT7/P 121 131 LSMT
5 0–15 101 133 LSND 103 131 LSND 103 131 LSND7/P 121 131 LSND
5 0–20 101 133 LSNG 103 131 LSNG 103 131 LSNG7/P 121 131 LSNG
5 0–25 101 133 LSNJ 103 131 LSNJ 103 131 LSNJ7/P 121 131 LSNJ
5 0–30 101 133 LSNL 103 131 LSNL 103 131 LSNL7/P 121 131 LSNL
5 0–40 101 133 LSNP 103 131 LSNP 103 131 LSNP7/P 121 131 LSNP
5 0–50 101 133 LSNT 103 131 LSNT 103 131 LSNT7/P 121 131 LSNT
5 0–75 101 133 LSPB 103 131 LSPB 103 131 LSPB7/P 121 131 LSPB
5 0–100 101 133 LSPK 103 131 LSPK 103 131 LSPK7/P 121 131 LSPK
5 0–150 101 133 LSPZ 103 131 LSPZ 103 131 LSPZ7/P 121 131 LSPZ
5 0–200 101 133 LSRL 103 131 LSRL 103 131 LSRL7/P 121 131 LSRL
5 0–250 101 133 LSRS 103 131 LSRS 103 131 LSRS7/P 121 131 LSRS
5 0–300 101 133 LSRX 103 131 LSRX 103 131 LSRX7/P 121 131 LSRX
5 0–400 101 133 LSSC 103 131 LSSC 103 131 LSSC7/P 121 131 LSSC
5 0–500 101 133 LSSF 103 131 LSSF 103 131 LSSF7/P 121 131 LSSF
5 0–600 101 133 LSSJ 103 131 LSSJ 103 131 LSSJ7/P 121 131 LSSJ
5 0–800 101 133 LSSN 103 131 LSSN 103 131 LSSN7/P 121 131 LSSN
5 0–1000 101 133 LSSS 103 131 LSSS 103 131 LSSS7/P 121 131 LSSS
5 0–1200 101 133 LSSV 103 131 LSSV 103 131 LSSV7/P 121 131 LSSV
5 0–1500 101 133 LSTC 103 131 LSTC 103 131 LSTC7/P 121 131 LSTC
5 0–2000 101 133 LSTM 103 131 LSTM 103 131 LSTM7/P 121 131 LSTM
5 0–2500 101 133 LSTV 103 131 LSTV 103 131 LSTV7/P 121 131 LSTV
5 0–3000 101 133 LSUA 103 131 LSUA 103 131 LSUA7/P 121 131 LSUA
5 0–4000 101 133 LSUE 103 131 LSUE 103 131 LSUE7/P 121 131 LSUE
5 0–5000 101 133 LSUJ 103 131 LSUJ 103 131 LSUJ7/P 121 131 LSUJ
5 0–6000 101 133 LSUP 103 131 LSUP 103 131 LSUP7/P 121 131 LSUP
5 0–7000 101 133 LSUS 103 131 LSUS 103 131 LSUS7/P 121 131 LSUS
5 0–8000 101 133 LSUW 103 131 LSUW 103 131 LSUW7/P 121 131 LSUW
Instruction Book: 4555K10P0701, Outline Dimensions: See pages 23 and 24
AC Ammeters
AB-40
Metal Case AB-40
Plastic Case
5
SWITCHBOARD INSTRUMENTS
Rating (Volts) Scale (Volts) AB-14 Cat. No. AB-40 Metal Case AB-40 Plastic Case AB-16 Cat. No.
Self-Contained, 50/60 Hz
150 0–150 101 023 PZPZ 103 021 PZPZ 103 021 PZPZ7/P 121 021 PZPZ
250 0–250 101 023 RSRS 103 021 RSRS 103 021 RSRS7/P 121 021 RSRS
300 0–300 101 023 RXRX 103 021 RXRX 103 021 RXRX7/P 121 021 RXRX
500 0–500 101 023 SFSF 103 021 SFSF 103 021 SFSF7/P 121 021 SFSF
600 0–600 101 023 SJSJ 103 021 SJSJ 103 021 SJSJ7/P 121 021 SJSJ
750s0–750 ** 103 021 SMSM 103 021 SMSM7/P 121 021 SMSM
Transformer-Rated, 50/60 Hz (see Potential Transformers on page 37)
150 0–300 101 023 PZRX 103 021 PZRX 103 021 PZRX7/P 121 021 PZRX
150 0–600 101 023 PZSJ 103 021 PZSJ 103 021 PZSJ7/P 121 021 PZSJ
150 0–750 101 023 PZSM 103 021 PZSM 103 021 PZSM7/P 121 021 PZSM
150 0–3000 101 023 PZUA 103 021 PZUA 103 021 PZUA7/P 121 021 PZUA
150 0–5250 101 023 PZUL 103 021 PZUL 103 021 PZUL7/P 121 021 PZUL
150 0–6000 101 023 PZUP 103 021 PZUP 103 021 PZUP7/P 121 021 PZUP
150 0–9000 101 023 PZUY 103 021 PZUY 103 021 PZUY7/P 121 021 PZUY
150 0–15kV 101 023 PZWZ 103 021 PZWZ 103 021 PZWZ7/P 121 021 PZWZ
150 0–18kV 101 023 PZXE 103 021 PZXE 103 021 PZXE7/P 121 021 PZXE
150 0–45kV 101 023 PZXU 103 021 PZXU 103 021 PZXU7/P 121 021 PZXU
150 0–150kV 101 023 PZYR 103 021 PZYR 103 021 PZYR7/P 121 021 PZYR
250 0–600V 101 023 RSSJ 103 021 RSSJ 103 021 RSSJ7/P 121 021 RSSJ
Expanded Scale, Self-Contained, 50/60 HZ
110–130 110–130 ** 103 071 PNPN 103 071 PNPN7/P 121 071 PNPN
Expanded Scale, Transformer Rated, 50/60 HZ
110–130 † ** 103 071 PN . .* 103 071 PN..7/P* 121 071 PN . .*
Rectifier Type, 1.5% Accuracy, 20 to 3000 Hz
15 0–15 ** * *7/P *
30 0–30 ** * *7/P *
150 0–150 ** * *7/P *
150 † ** * *7/P *
300 0–300 ** * *7/P *
600 0–600 ** * *7/P *
Ground Detector Type — Single-Phase 50/60 Hz
150 0–150 ** 103 021 PZPZ 103 021 PZPZ7/P 121 021 PZPZ
150 † ** 103 021 PZ. .* 103 021 PZ. .*7/P 121 021 PZ. .*
300 0–300 ** 103 021 RXRX 103 021 RXRX7/P 121 021 RXRX
600 0–600 ** 103 021 SJSJ 103 021 SJSJ7/P 121 021 SJSJ
Instruction Book: 4555K10P0701, Outline Dimensions: see pages 23 and 24
AC Voltmeters
AB-40
Metal Case AB-40
Expanded Scale
sUL version not available.
* Order by description. Specify P.T. (Potential Transformer) ratio if used, and scale desired.
** High shock version not available.
† Scale per requisition. AB/DB models have maximum 4 digits as standard.
6
SWITCHBOARD INSTRUMENTS
Scale and Rating DB-14 Cat. No. DB-40 Metal Case DB-40 Plastic Case DB-16 Cat. No.
Microammeters — Zero-Left
0–200 ** 103 111 EAEA 103 111 EAEA7/P —
0–300 101 113 EGEG 103 111 EGEG 103 111 EGEG7/P 121 111 EGEG
0–500 101 113 EMEM 103 111 EMEM 103 111 EMEM7/P 121 111 EMEM
Milliammeters — Zero-Left
s0–1 101 113 FAFA 103 111 FAFA 103 111 FAFA7/P 121 111 FAFA
0–2 101 113 FGFG 103 111 FGFG 103 111 FGFG7/P 121 111 FGFG
0–5 101 113 FXFX 103 111 FXFX 103 111 FXFX7/P 121 111 FXFX
0–10 101 113 GZGZ 103 111 GZGZ 103 111 GZGZ7/P 121 111 GZGZ
0–30 101 113 HMHM 103 111 HMHM 103 111 HMHM7/P 121 111 HMHM
0–50 101 113 HYHY 103 111 HYHY 103 111 HYHY7/P 121 111 HYHY
0–100 101 113 JRJR 103 111 JRJR 103 111 JRJR7/P 121 111 JRJR
0–200 101 113 KAKA 103 111 KAKA 103 111 KAKA7/P 121 111 KAKA
0–300 101 113 KGKG 103 111 KGKG 103 111 KGKG7/P 121 111 KGKG
0–500 101 113 KMKM 103 111 KMKM 103 111 KMKM7/P 121 111 KMKM
MIlliammeters — Suppressed-Zero (No zero set unless otherwise specified)
10–50 101 193 HX…† 103 191 HX…† 103 191 HX...†7/P 121 191 HX…†
s4–20 101 193 HE…† 103 191 HE…† 103 191 HE…†7/P 121 191 HE…†
1–5 101 193 FY…† 103 191 FY…† 103 191 FY…†7/P 121 191 FY…†
Ammeters — Zero-Left
0–1 101 113 LALA 103 111 LALA 103 111 LALA7/P 121 111 LALA
0–5 101 113 LSLS 103 111 LSLS 103 111 LSLS7/P 121 111 LSLS
0–10 101 113 MTMT 103 111 MTMT 103 111 MTMT7/P 121 111 MTMT
0–15 101 113 NDND 103 111 NDND 103 111 NDND7/P 121 111 NDND
0–20 101 113 NGNG 103 111 NGNG 103 111 NGNG7/P 121 111 NGNG
0–30 101 113 NLNL 103 111 NLNL 103 111 NLNL7/P 121 111 NLNL
Instruction Book: 4555K10P0701, Outline Dimensions: see pages 23 and 24
DC Ammeters Self-Contained
** High shock not available
* Scale marked in terms of shunt current. When ordering specify rating of shunt to be used, scale and legend. AB/DB meter scales
have a maximum of 4 digits.
Shunt-rated instruments are normally calibrated for 5-foot shunt leads (0.050 Ohms). They can be calibrated for maximum
resistances as follows: 50mV 100mV
2.0 Ohms 5.0 Ohms
Rating (Millivolts) Scale (Amperes) DB-14 Cat. No. DB-40 Metal Case DB-40 Plastic Case DB-16 Cat. No.
With Lead Length Compensator, Catalog Number Does Not Include Shunt or Shunt Leads
50 * ** 103 121 AB… 103 121 AB…7/P 121 121 AB…
50–0–50 * 101 124 AB… 103 122 AB… 103 122 AB…7/P 121 122 AB…
100 * 101 123 AE… 103 121 AE… 103 121 AE…7/P 121 121 AE…
100–0–100 * 101 124 AE… 103 122 AE… 103 122 AE…7/P 121 122 AE…
Zero-Left for Use with 50mV Shunts and 0.05-Ohm Shunt Leads, (Standard 5-Foot Leads). s
See page 37 for External Shunts (Shunts and Leads are not included with meter).
50 0–15 101 123 CAND 103 121 CAND 103 121 CAND7/P 121 121 ECND
50 0–20 101 123 CANG 103 121 CANG 103 121 CANG7/P 121 121 ECNG
50 0–30 101 123 CANL 103 121 CANL 103 121 CANL7/P 121 121 ECNL
50 0–40 101 123 CANP 103 121 CANP 103 121 CANP7/P 121 121 ECNP
50 0-50 101 123 CANT 103 121 CANT 103 121 CANT7/P 121 121 ECNT
50 0–75 101 123 CAPB 103 121 CAPB 103 121CAPB7/P 121 121 ECPB
50 0–100 101 123 CAPK 103 121 CAPK 103 121 CAPK7/P 121 121 ECPK
50 0–150 101 123 CAPZ 103 121 CAPZ 103 121 CAPZ7/P 121 121 ECPZ
50 0–200 101 123 CARL 103 121 CARL 103 121 CARL7/P 121 121 ECRL
50 0–300 101 123 CARX 103 121 CARX 103 121 CARX7/P 121 121 ECRX
50 0–400 101 123 CASC 103 121 CASC 103 121 CASC7/P 121 121 ECSC
50 0–500 101 123 CASF 103 121 CASF 103 121 CASF7/P 121 121 ECSF
50 0–750 101 123 CASM 103 121 CASM 103 121 CASM7/P 121 121 ECSM
50 0–1000 101 123 CASS 103 121 CASS 103 121 CASS7/P 121 121 ECSS
50 0–1200 101 123 CASV 103 121 CASV 103 121 CASV7/P 121 121 ECSV
50 0–1500 101 123 CATC 103 121 CATC 103 121 CATC7/P 121 121 ECTC
50 0–2000 101 123 CATM 103 121 CATM 103 121 CATM7/P 121 121 ECTM
50 0–3000 101 123 CAUA 103 121 CAUA 103 121 CAUA7/P 121 121 ECUA
Instruction Book: 4555K10P0701, Outline Dimensions: see pages 23 and 24
DC Ammeters Shunt-Rated
DB-40 Metal Case
DB-40 Plastic Case
t
sSee page 34 and 35 for Matching Power Transducer or Isolator.
† Scale per requisition. (AB/DB-40/16) have a maximum of 4 digits as standard.
** High shock version not available.
7
SWITCHBOARD INSTRUMENTS
Rating and Scale (Volts) DB-14 Cat. No. DB-40 Metal Case DB-40 Plastic Case DB-16 Cat. No.
Zero-Left (Sensitivity is 1000 OHMS / Volt)
0–15 101 013 NDND 103 011 NDND 103 011 NDND7/P 121 011 NDND
0–30 101 013 NLNL 103 011 NLNL 103 011 NLNL7/P 121 011 NLNL
0–50 101 013 NTNT 103 011 NTNT 103 011 NTNT7/P 121 011 NTNT
0–75 101 013 PBPB 103 011 PBPB 103 011 PBPB7/P 121 011 PBPB
0–150 101 013 PZPZ 103 011 PZPZ 103 011 PZPZ7/P 121 011 PZPZ
0–300 101 013 RXRX 103 011 RXRX 103 011 RXRX7/P 121 011 RXRX
0–400 101 013 SCSC 103 011 SCSC 103 011 SCSC7/P 121 011 SCSC
0–500 101 013 SFSF 103 011 SFSF 103 011 SFSF7/P 121 011 SFSF
0–600 101 013 SJSJ 103 011 SJSJ 103 011 SJSJ7/P 121 011 SJSJ
Zero-Center (Sensitivity is 2000 OHMS / Volt)
150–0–150 101 014 PZPZ 103 012 PZPZ 103 012 PZPZ7/P 121 012 PZPZ
300–0–300 101 014 RXRX 103 012 RXRX 103 012 RXRX7/P 121 012 RXRX
500–0–500 101 014 SFSF 103 012 SFSF 103 012 SFSF7/P 121 012 SFSF
600–0–600 101 014 SJSJ 103 012 SJSJ 103 012 SJSJ7/P 121 012 SJSJ
Ground Detector Type — Zero-Center for 2-Wire Circuits (Standard Sensitivity is 1000 OHMS/Volt) ‡
150–0–150 ** 103 012 PZ† 103 012 PZ†7/P 121 012 PZ†
300–0–300 ** 103 012 RX† 103 012 RX†7/P 121 012 RX†
500–0–500 ** 103 012 SF† 103 012 SF†7/P 121 012 SF†
600–0–600 ** 103 012 SJ† 103 012 SJ†7/P 121 012 SJ†
Instruction Book: 4555K10P0701, Outline Dimensions pages 23 and 24
DC Volts
Select nearest higher rated DC Voltmeter from above and specify requirements.
AC Volts
Select nearest higher rated rectifier type AC voltmeter from Page 5 and specify requirements.
Instruction Book 4555K15P0003
Tachometer Indicators
DB-40 Metal CaseDB-40 Tachometer
DB-40 Plastic Case
† Specify scale by order.
‡ Includes (2) 2227 External Resistors.
** High shock version not available.
DC Voltmeters
8
SWITCHBOARD INSTRUMENTS
AB/DB17
Switchboard
Meters
These internally illuminated meters are used primarily in railway
locomotive applications for load and speed indication. They are
suited to all applications where scale lighting and high accuracy is
requir ed. The wide radius pivot and jewel movement ensures accu-
racy and stability in the toughest environments. Standar d lamps
furnished with AB/DB17 are 2 GE #44 (6VDC) Lamps.
GENERAL SPECIFICATIONS
BASIC SPECIFICATION ACCURACY
In accordance with American ± 1% of full scale D.C. Meters
National Standards Institute ± 1.5% of full scale A.C. Meters
Specifications C39.1 RESPONSE TIME
2.5 Seconds Maximum
SCALE LENGTH AND ARC
6.9” 250° METER MECHANISM
Scale Type: Moving coil type pivot
White numerals, black platform scale is standard and sapphire jewel
NET WEIGHT DIELECTRIC LEVEL
Approximately 990 gr. (2.2 lbs) 4000 Volts A.C. for 1 minute
(case to input terminals)
OVERSHOOT
Approximately 10% Outline Dimensions
See page 24
Description Rating and scale Model type
DC Milliammeter 0-1mA 102117FAFA
DC Milliammeter 0-10mA 102117GZGZ
DC Ammeter † 102117*
DC Millivolts 0-50mV 102127ECEC
DC Voltmeter † 102017*
AC Ammeter † 102117*
AC Voltmeter † 102117*
Note: *Specify full scale rating, scale color, type, legend, etc.
† Contact factory for minimum / maximum ratings.
AB/DB17 MODELS AVAILABLE
9
SWITCHBOARD INSTRUMENTS
Synchroscopes — Pivot & Jewel, 120 Volt
Scale Normal Frequency AB-40 Cat. No. AB-16 Cat. No.
“Slow-Fast” 50 106 452 ABAA 120 452 ABAA
“Slow-Fast” 60 106 452 AAAA 120 452 AAAA
“Slow-Fast” 400 106 452 ACAA 120 452 ACAA
Instruction Book: 4555K20P0701, Outline Dimensions: See page 23
Rating (Volts) Scale DB-40 Cat. No. DB-16 Cat. No.
1-Percent of Span for 10-ohm copper RTDs (Resistance Temperature Detectors) 50-600 Hz
120 20 –140°C 103 502 CAAB† 121 502 CAAB†
120 0–180°F 103 502 CDAD† 121 502 CDAD†
Instruction Book: 4555K12P0001, Outline Dimensions: See page 23
Temperature Indicators (Lead Resistance = 0.3 ohms)
† Catalog number includes calibrated test resistor
Scale (Hz) Center Frequency (Hz) Accuracy (Hz) AB-40 Cat. No. AB-16 Cat. No.
45–55 50 ±0.15 103 372 AGAG 121 372 AGAG
45–65 55 ±0.25 103 372 AJAJ 121 372 AJAJ
48–52 50 ±0.093 103 372 AKAK 121 372 AKAK
50–70 60 ±0.25 103 372 ALAL 121 372 ALAL
55–65 60 ±0.15 103 372 ANAN 121 372 ANAN
58–62 60 ±0.093 103 372 ATAT 121 372 ATAT
59–61 60 ±0.047 103 372 ASAS 121 372 ASAS
350–450 400 ±1.3 103 372 BHBH 121 372 BHBH
390–410 400 ±0.492 103 372 BLBL 121 372 BLBL
Instruction Book: 4555K24P0001, Outline Dimensions: See page 23
Frequency Meters, 120V
*240 V L-N
Rating (Amperes) Rating (L-L Volts) Scale AB-40 Cat. No. AB-16 Cat. No.
Single-Phase/2-Wire, 60Hz
5 120 .5–1–.5 103 412 FCAD 121 412 FCAD
3-Phase 3- & 4-Wire, 50/60Hz Balanced System Only
5 120 .5–1–.5 103 402 FCAD 121 402 FCAD
5 208 .5–1–.5 103 402 FDAD —
5 240 .5–1–.5 103 402 FEAD 121 402 FEAD
5 480 .5–1–.5 103 402 FFAD —
5 600 .5–1–.5 103 402 FGAD —
3-Phase 3-Wire, 60Hz Unbalanced Systems
5 120 .5–1–.5 103 462 FCAD —
5 240 .5–1–.5 103 462 FEAD —
3-Phase 4-Wire, 60Hz Unbalanced Systems
5 120 .5–1–.5 103 472 FCAD —
5 208 .5–1–.5 103 472 FDAD —
5 416* .5–1–.5 103 472 FEAD —
Instruction Book: 4555K35P0701 (For Unbalanced), Outline Dimensions: See page 23
Instruction Book: 4555K25P0001 (For Balanced), Outline Dimensions: See page 23
Power-Factor Meters
POWER
FACTOR SCALE
FOR
BALANCED
SYSTEM
10
SWITCHBOARD INSTRUMENTS
Rating (Amperes) Rating (Volts) Scale AB-40 Cat. No. AB-16 Cat. No.
Single-Phase/2-Wire, 1-Element, Transformer Rated, 60Hz
5 120 † 103 31 A …… 121 31 A ……
5 120 † 103 762 A ……* 121 762 A……*
3-Phase/3-Wire, 2-Element, Transformer-Rated, 50/60Hz (Cannot be used with External Phase Shifter)
5 120 † 103 28 A 121 28 A....
5 120 † 103 812 A ……• 121 812 A....•
3-Phase/3-Wire, 2-Element, Transformer-Rated, 60Hz For Use With External Phase Shifters
5 120 † 103 32 A …… 121 32 A
5 120 † 103 772 A .....* 121 77 2 A*
3-Phase/4-Wire, 21⁄2-Element, Transformer-Rated, 50/60Hz (Cannot be used with External Phase Shifter)
5 208 H† 103 29 B.... 121 29 B....
5 208 H† 103 742 B.... s121 742 B.... s
3-Phase/4-Wire, 21⁄2-Element, Transformer-Rated, 60Hz For Use with External Phase Shifters
5 120 † 103 34 A …… 121 34 A .....
5 120 † 103 792 A ....* 121 792 A ....*
Instruction Book: 4555K27P0701, Outline Dimensions: See page 23
Rating (Amperes) Rating (Volts) Scale AB-40 Cat. No. AB-16 Cat. No.
Single-Phase/2-Wire, 1-Element, Transformer-Rated, 50/60 Hz
5 120 † 103 21 A …… 121 21 A ……
3-Phase/3-Wire, 2-Element, Transformer-Rated, 50/60Hz
5 120 † 103 22 A …… 121 22 A ……
5 240 † 103 22 C …… 121 22 C ……
5 480* † 103 22 D …… —
5 600* † 103 22 E …… —
3-Phase/4-Wire, 21⁄2-Element, Transformer-Rated, 50/60Hz, (Voltage balanced)
5 69 † 103 25 F 121 25 F
5 120 † 103 25 A …… 121 25 A ……
5 240 † 103 25 C …… 121 25 C ……
Instruction Book: 4555K26P0701, Outline Dimensions: See page 23
AC Wattmeters Non-Isolated (cannot be used with external Phase Shifter for Vars)
† Order by description. Specify CT (Current Transformer) and/or PT (Potential Transformer) ratios if used and scale desired.
* UL version in short case, non-UL version in long case.
Sixth digit signifies pointer deflection (1-zero-left, 2-zero-center).
† Order by description. Specify CT (Current Transformer) and/or PT (Potential Transformer) ratios if used and scale desired.
* Used for 0-Center when calibrating watts are less than ±380.
• Used for 0-Center when calibrating watts are less than ±658.
sUsed for 0-Center when calibrating watts are less than ±760.
HThe 21⁄2-element varmeters used on 4-wire 3-phase 120V L-N systems are rated 208V because they are connected line-
to-line.
Sixth digit signifies pointer deflection (1-zero left, 2-zero center).
Varmeters (Voltages must be balanced for all polyphase Varmeters)
NOTE:
See Application Guide and
Tables on the following
six pages for selection of
commonly used Watt and Var
Meters.
Varmeters are usually zero-center and scaled for half the scale values of the accompanying wattmeters.
Example: If the Wattmeter is scaled 0-100 Kilowatts, the Varmeter is scaled 50-0-50 Kilovars.
Digit 14 Wattmeters Varmeters
A None None
B AC Watts Vars
C AC Kilowatts Kilovars
Digit 14 Wattmeters Varmeters
D AC Megawatts Megavars
E AC Watts/Vars* —
F AC KW/Var*
s
—
Digit 14 Wattmeters Varmeters
G AC MW/Var*
s
—
T Percent Horsepower —
U Horsepower —
11
SWITCHBOARD INSTRUMENTS
APPLICATION GUIDE FOR SELECTION OF
WATTMETERS AND VARMETERS
Key to Watt/Varmeter Scales
Cat. Digit Cat. Digit Cat. Digit Cat. Digit Cat. Digit
12, 13 Scale 12, 13 Scale 12, 13 Scale 12, 13 Scale 12, 13 Scale
AA 1 BA 10 CA 100 DA 1000 EA BLANK
AC 1.2 BC 12 CC 120 DC 1200 EC 1.2
AD 1.4 BD 14 CD 140 DD 1400 EE 1.6
AE 1.5 BE 15 CE 150 DE 1500 FC 12.5
AF 1.8 BF 18 CF 180 DF 1800 FD 13
AG 2 BG 20 CG 200 DG 2000 FE 16
AH 2.4 BH 24 CH 240 DH 2400 FG 17.5
AJ 2.5 BJ 25 CJ 250 DJ 2500 FJ 26
AK 3 BK 30 CK 300 DK 3000 GB 115
AL 3.2 BL 32 CL 320 DL 3200 GC 125
AM 3.5 BM 35 CM 350 DM 3500 GD 130
AN 4 BN 40 CN 400 DN 4000 GE 160
AP 4.5 BP 45 CP 450 DP 4500 GG 175
AR 5 BR 50 CR 500 DR 5000 GH 230
AS 5.5 BS 55 CS 550 DS 5500 GJ 260
AT 6 BT 60 CT 600 DT 6000 HC 1250
AU 6.5 BU 65 CU 650 DU 6500 HD 1300
AW 7 BW 70 CW 700 DW 7000 HE 1600
AX 7.5 BX 75 CX 750 DX 7500 HG 1750
AY 8 BY 80 CY 800 DY 8000
AZ 9 BZ 90 CZ 900 DZ 9000
1. For polyphase applications, see Selector Tables II-V. These
tables display complete catalog numbers for use with com-
monly used combinations of CT and PT ratios. For single
phase applications, order by description.
For 3-wire 3-phase wattmeters rated 120 volts, 5A see TABLE
II on page 13.
For 3-wire 3-phase varmeters rated 120 volts, 5A see
TABLE IV on page 15.
For 4-wire 3-phase wattmeters rated 120 volts, 5A see TABLE
III on page 14.
For 4-wire 3-phase varmeters rated 208 volts, 5A see
TABLE V on page 16.
2. If scale is required to be higher or lower than the pre-
selected scale shown in the above tables, see TABLE I on
page 12. Choose a scale value between the maximum and
minimum shown on this table for the combination of CT
and PT ratios. Order by description, giving CT and PT ratios
and choice of scale.
3. For transformer ratios and/or ratings not shown in the
above tables, see Scale Watts Formula on page 12. This table
shows minimum and maximum calibrating watts for various
applications and ratings.
Minimum scale = CT ratio x PT ratio x minimum CW x K
Maximum scale = CT ratio x PT ratio x maximum CW x K
Choose a scale between the maximum and minimum. Order
by description, giving rating, transformer ratios, and choice
of scale.
“PT Ratio x CT Ratio” is sometimes expressed as “TR”.
Example: If CT Ratio is 400/5 and PT Ratio is 480/120; then
TR = 320.
4. See tables below for scale and legend keys to catalog
number (digits 12, 13, 14).
This table shows letter combinations assigned to end-scale values to be used for digits
12 & 13 in Catalog number.
Key to Watt/Varmeter Legends
This table shows letters assigned to inner scale legends to be used for digit 14 in Catalog number.
*For wattmeters that are to be used with phase shifting transformer for measuring vars.
s Standard Legends AC Kilowatts/Kilovars and AC Megawatts/Megavars
12
SWITCHBOARD INSTRUMENTS
PT PRIMARY VOLTAGE
CT
Scale Primary 240 480 600 2400 3600 4200 4800 6000 7200 12000 14400
Selection Current
Normal 25 10 20 25 100 150 175 200 250 300 500 600
Max 15 30 35 150 200 250 300 350 450 750 900
Min 8 16 20 80 120 150 160 200 250 400 500
Normal 50 20 40 50 200 300 350 400 500 600 1000 1200
Max 30 60 75 300 450 500 600 750 900 1500 1750
Min 16 35 40 160 250 300 350 400 500 800 1000
Normal 75 30 60 75 300 450 500 600 750 900 1500 1750
Max 45 90 100 450 650 750 900 1000 1200 2000 2500
Min 25 50 60 250 350 400 500 600 700 1200 1500
Normal 100 40 80 100 400 600 700 800 1000 1200 2000 2500
Max 60 120 150 600 900 1000 1200 1500 1750 3000 3500
Min 35 65 80 350 500 600 650 800 1000 1600 2000
Normal 150 60 120 150 600 1000 1000 1200 1500 1750 3000 3500
Max 90 175 200 900 1200 1500 1750 2000 2500 4500 5000
Min 50 100 100 500 700 800 1000 1200 1500 2500 3000
Normal 200 80 150 200 800 1200 1500 1500 2000 2500 4000 5000
Max 120 200 300 1200 1750 2000 2000 3000 3500 6000 7000
Min 65 125 160 650 1000 1200 1200 1600 2000 3500 4000
Normal 300 120 250 300 1200 1750 2000 2500 3000 3500 6000 7500
Max 175 350 450 1750 2500 3000 3500 4500 5000 9000 10Mw
Min 100 200 250 1000 1500 1600 2000 2500 3000 5000 6000
Normal 400 150 300 400 1500 2500 3000 3000 4000 5000 8000 10Mw
Max 200 450 600 2000 3500 4000 4500 6000 7000 12Mw 14Mw
Min 120 250 350 1200 2000 2500 2500 3500 4000 6500 7500
Normal 600 250 500 600 2500 3500 4000 5000 6000 7500 12 15
Max 350 700 900 3500 5000 6000 7000 9000 10Mw 17.5 20
Min 200 400 500 2000 3000 3500 4000 5000 6000 10 12
Normal 800 300 600 800 3000 5000 5000 6000 8000 10Mw 15 20
Max 450 900 1200 4500 7000 8000 9000 12Mw 12Mw 20 25
Min 250 500 650 2500 4000 4500 5000 6500 7500 15 15
Normal 1200 500 1000 1200 5000 7500 8000 10Mw 12 15 25 30
Max 700 1200 1750 7000 10Mw 12Mw 12Mw 17.5 20 35 45
Min 400 750 1000 4000 6000 6500 7500 10 12 20 25
Normal 1500 600 1200 1500 6000 10Mw 10Mw 12 15 17.5 30 35
Max 900 1750 2000 9000 12Mw 15Mw 17.5 20 25 45 50
Min 500 1000 1000 5000 7000 8000 10 10 15 20 25
Normal 2000 800 1500 2000 8000 12 15 15 20 25 40 50
Max 1200 2000 3000 12Mw 17.5 20 20 30 35 60 70
Min 650 1400 1600 6500 10 12 12 16 20 35 40
Normal 3000 1200 2500 3000 12 17.5 20 25 30 35 60 75
Max 1750 3500 4500 17.5 25 30 35 45 50 90 100
Min 1000 2000 2500 10 15 16 20 25 30 50 60
Normal 4000 1500 3000 4000 15 25 30 30 40 50 80 100
Max 2000 4500 6000 20 35 40 45 60 70 120 140
Min 1200 2500 3500 12 20 25 25 35 40 65 75
Scale values for 3-wire / 3-phase (120 volts, 5 ampere) For 4-wire / 3-phase multiply by 2. For single-phase divide by 2. Note: PT Primary Voltages shown are the line to neutral value
for 3-phase / 4-wire circuits.
TABLE I
Selection of W attmeter Scales
(AB/DB-40/16 have a maximum of 4 digits as standard.)
Megawatts Kilowatts
Scale Watts Formula:
The limits of full-scale values depend upon the rating of the instru-
ment and the current and potential transformer ratios used.
In order to determine whether the desired full-scale value is within
limits, the following calibrating-watts formula and table are used. If
the calibrating watts value falls within the range shown in the table
for the instrument rating, the scale is acceptable.
Calibrating Watts/Element =Desired full-scale value in watts or vars
CW (PT Ratio) x (CT Ratio) x K
STANDARD CALIBRATING WATT RANGES FOR 5A 120V RATING
Model Zero Left Zero Center ✳
s
or Center✳Low Cal Watts
Watt or Var (except below) 380 — 760 190 — 760
2 el. Var 10328 — & 103812 — 658 — 1316 329 — 1316
21⁄2el. Var 10329 — & 103742 — 760 — 1520 380 — 1520
* Other Voltage & current ratings will be proportional
s
End scale values
Note 1: For 10329 and 103742 (2
1
⁄
2
element varmeters only) Catalog Number Digits 8, 9, 10 are one-
half (
1
⁄
2
) the CW (
...
calibration current) as calculated using K = 1.1547
Note 2: The constant K may differ for various ”short-cut” methods of metering watts or vars.
s
s
Where K = 1 for 1-phase/2-wire circuits
K = 2 for 1-phase/3-wire, 2-phase/3-wire, 2-phase/4-wire, 3 phase/3-wire circuits
K = 4 for 3-phase/4-wire circuits
Except K = 1.1547 for var models (10328 — & 103812 — 10329 — & 103742 —)
13
SWITCHBOARD INSTRUMENTS
TABLE II
W attmeter Selector
For 3-Wire 3-Phase (2-element) Wattmeter 5A 120V (Zero-Left)
C.T. P.T. RATIO
240/120 480/120 600/120 2400/120 3600/120 4200/120 4800/120 6000/120 7200/120 12000/120 14400/120
(2:1) (4:1) (5:1) (20:1) (30:1) (35:1) (40:1) (50:1) (60:1) (100:1) (120:1)
25/5 RBU7BAC RBU7BGC RBU7BJC RBU7CAC RBU7CEC RBU7GGC RBU7CGC RBU7CJC RBU7CKC RBU7CRC RBU7CTC
(5:1) 10KW 20KW 25KW 100KW 150KW 175KW 200KW 250KW 300KW 500KW 600KW
50/5 RBU7BGC RBU7BNC RBU7BRC RBU7CGC RBU7CKC RBU7CMC RBU7CNC RBU7CRC RBU7CTC RBU7DAC RBU7DCC
(10:1) 20KW 40KW 50KW 200KW 300KW 350KW 400KW 500KW 600KW 1000KW 1200KW
75/5 RBU7BKC RBU7BTC RBU7BXC RBU7CKC RBU7CPC XGJ7CRC RBU7CTC RBU7CXC RBU7CZC RBU7DEC RBU7DFC
(15:1) 30KW 60KW 75KW 300KW 450KW 500KW 600KW 750KW 900KW 1500KW 1800KW
100/5 RBU7BNC RBU7BYC RBU7CAC RBU7CNC RBU7CTC RBU7CWC RBU7CYC RBU7DAC RBU7DCC RBU7DGC RBU7DHC
(20:1) 40KW 80KW 100KW 400KW 600KW 700KW 800KW 1000KW 1200KW 2000KW 2400KW
150/5 RBU7BTC RBU7CCC RBU7CEC RBU7CTC RBU7CZC XGJ7DAC RBU7DCC RBU7DEC RBU7DFC RBU7DKC RAS7DMC
(30:1) 60KW 120KW 150KW 600KW 900KW 1000KW 1200KW 1500KW 1800KW 3000KW 3500KW
200/5 RBU7BYC RBU7GEC RBU7CGC RBU7CYC RBU7DCC RBU7DDC RBU7HEC RBU7DGC RBU7DHC RBU7DNC RDR7DRC
(40:1) 80KW 160KW 200KW 800KW 1200KW 1400KW 1600KW 2000KW 2400KW 4000KW 5000KW
250/5 RBU7CAC RBU7CGC RBU7CJC RBU7DAC RBU7DEC RBU7HGC RBU7DGC RBU7DJC RBU7DKC RBU7DRC RBU7DTC
(50:1) 100KW 200KW 250KW 1000KW 1500KW 1750KW 2000KW 2500KW 3000KW 5000KW 6000KW
300/5 RBU7CCC RBU7CHC RBU7CKC RBU7DCC RBU7DFC XGJ7DGC RBU7DHC RBU7DKC RAS7DMC RBU7DTC RAS7DWC
(60:1) 120KW 240KW 300KW 1200KW 1800KW 2000KW 2400KW 3000KW 3500KW 6000KW 7000KW
400/5 RBU7GEC RBU7CLC RBU7CNC RBU7HEC RBU7DHC RET7DKC RBU7DLC RBU7DNC RDR7DRC RBU7DYC RDR7BAD
(80:1) 160KW 320KW 400KW 1600KW 2400KW 3000KW 3200KW 4000KW 5000KW 8000KW 10MW
500/5 RBU7CGC RBU7CNC RBU7CRC RBU7DGC RBU7DKC RBU7DMC RBU7DNC RBU7DRC RBU7DTC RBU7BAD RBU7BCD
(100:1) 200KW 400KW 500KW 2000KW 3000KW 3500KW 4000KW 5000KW 6000KW 10MW 12MW
600/5 RBU7CHC RDR7CRC RBU7CTC RBU7DHC RAS7DMC XGJ7DNC RDR7DRC RBU7DTC RAS7DWC RBU7BCD RDR7BED
(120:1) 240KW 500KW 600KW 2400KW 3500KW 4000KW 5000KW 6000KW 7000KW 12MW 15MW
800/5 RBU7CLC XAG7CTC RBU7CYC RBU7DLC RDR7DRC RET7DTC XAG7DTC RBU7DYC RDR7BAD RBU7FED RDR7BGD
(160:1) 320KW 600KW 800KW 3200KW 5000KW 6000KW 6000KW 8000KW 10MW 16MW 20MW
1000/5 RBU7CNC RBU7CYC RBU7DAC RBU7DNC RBU7DTC RBU7DWC RBU7DYC RBU7BAD RBU7BCD RBU7BGD RBU7BHD
(200:1) 400KW 800KW 1000KW 4000KW 6000KW 7000KW 8000KW 10MW 12MW 20MW 24MW
1200/5 RDR7CRC RDR7DAC RBU7DCC RDR7DRC RAS7DWC XGJ7DYC RDR7BAD RBU7BCD RDR7BED RBU7BHD RDR7BKD
(240:1) 500KW 1000KW 1200KW 5000KW 7000KW 8000KW 10KW 12MW 15MW 24MW 30MW
1500/5 RBU7CTC RBU7DCC RBU7DEC RBU7DTC RBU7DZC XGJ7BAD RBU7BCD RBU7BED RBU7BFD RBU7BKD RAS7BMD
(300:1) 600KW 1200KW 1500KW 6000KW 9000KW 10MW 12MW 15MW 18MW 30MW 35MW
2000/5 RBU7CYC RBU7HEC RBU7DGC RBU7DYC RBU7BCD RBU7BDD RBU7FED RBU7BGD RBU7BHD RBU7BND RDR7BRD
(400:1) 800KW 1600KW 2000KW 8000KW 12MW 14MW 16MW 20MW 24MW 40MW 50MW
2500/5 RBU7DAC RBU7DGC RBU7DJC RBU7BAD RBU7BED RBU7FGD RBU7BGD RBU7BJD RBU7BKD RBU7BRD RBU7BTD
(500:1) 1000KW 2000KW 2500KW 10MW 15MW 17.5MW 20MW 25MW 30MW 50MW 60MW
3000/5 RBU7DCC RBU7DHC RBU7DKC RBU7BCD RBU7BFD XGJ7BGD RBU7BHD RBU7BKD RAS7BMD RBU7BTD RAS7BWD
(600:1) 1200KW 2400KW 3000KW 12MW 18MW 20MW 24MW 30MW 35MW 60MW 70MW
4000/5 RBU7HEC RBU7DLC RBU7DNC RBU7FED RBU7BHD RET7BKD RBU7BLD RBU7BND RDR7BRD RBU7BYD RDR7CAD
(800:1) 1600KW 3200KW 4000KW 16MW 24MW 30MW 32MW 40MW 50MW 80MW 100MW
5000/5 RBU7DGC RBU7DNC RBU7DRC RBU7BGD RBU7BKD RBU7BMD RBU7BND RBU7BRD RBU7BTD RBU7CAD RBU7CCD
(1000:1) 2000KW 4000KW 5000KW 20MW 30MW 35MW 40MW 50MW 60MW 100MW 120MW
AB-40 Cat. No. 103221A..... Find Digits 8-14 & scale at
AB-16 Cat. No. 121221A..... Intersection of C.T. & P.T. Ratios
(For zero center change Digit 6 from 1 to 2)
RATIO
{
14
SWITCHBOARD INSTRUMENTS
TABLE III
W attmeter Selector
For 4-Wire 3-Phase (21⁄2-element) Wattmeter 5A 120V (Zero-Left)
C.T. P.T. RATIO
240/120 480/120 600/120 2400/120 3600/120 4200/120 4800/120 6000/120 7200/120 12000/120 14400/120
(2:1) (4:1) (5:1) (20:1) (30:1) (35:1) (40:1) (50:1) (60:1) (100:1) (120:1)
25/5 RBU7BGC RBU7BNC RBU7BRC RBU7CGC RBU7CKC RBU7CMC RBU7CNC RBU7CRC RBU7CTC RBU7DAC RBU7DCC
(5:1) 20KW 40KW 50KW 200KW 300KW 350KW 400KW 500KW 600KW 1000KW 1200KW
50/5 RBU7BNC RBU7BYC RBU7CAC RBU7CNC RBU7CTC RBU7CWC RBU7CYC RBU7DAC RBU7DCC RBU7DGC RBU7DHC
(10:1) 40KW 80KW 100KW 400KW 600KW 700KW 800KW 1000KW 1200KW 2000KW 2400KW
75/5 RBU7BTC RBU7CCC RBU7CEC RBU7CTC RBU7CZC XGJ7DAC RBU7DCC RBU7DEC RBU7DFC RBU7DKC RAS7DMC
(15:1) 60KW 120KW 150KW 600KW 900KW 1000KW 1200KW 1500KW 1800KW 3000KW 3500KW
100/5 RBU7BYC RBU7GEC RBU7CGC RBU7CYC RBU7DCC RBU7DDC RBU7HEC RBU7DGC RBU7DHC RBU7DNC XAG7DPC
(20:1) 80KW 160KW 200KW 800KW 1200KW 1400KW 1600KW 2000KW 2400KW 4000KW 4500KW
150/5 RBU7CCC RBU7CHC RBU7CKC RBU7DCC RBU7DFC XGJDGC RBU7DHC RBU7DKC RAS7DMC RBU7DTC RAS7DWC
(30:1) 120KW 240KW 300KW 1200KW 1800KW 2000KW 2400KW 3000KW 3500KW 6000KW 7000KW
200/5 RBU7GEC RBU7CLC RBU7CNC RBU7HEC RBU7DHC UCA7DJC RBU7DLC RBU7DNC XAG7DPC RBU7DYC XAG7DZC
(40:1) 160KW 320KW 400KW 1600KW 2400KW 2500KW 3200KW 4000KW 4500KW 8000KW 9000KW
250/5 RBU7CGC RBU7CNC RBU7CRC RBU7DGC RBU7DKC RBU7DMC RBU7DNC RBU7DRC RBU7DTC RBU7BAD RBU7BCD
(50:1) 200KW 400KW 500KW 2000KW 3000KW 3500KW 4000KW 5000KW 6000KW 10MW 12MW
300/5 RBU7CHC XAG7CPC RBU7CTC RBU7DHC RAS7DMC XGJ7DNC XAG7DPC RBU7DTC RAS7DWC RBU7BCD RAS7BDD
(60:1) 240KW 450KW 600KW 2400KW 3500KW 4000KW 4500KW 6000KW 7000KW 12MW 14MW
400/5 RBU7CLC XAG7CTC RBU7CYC RBU7DLC XAG7DPC UCA7DRC XAG7DTC RBU7DYC XAG7DZC RBU7FED XAG7BFD
(80:1) 320KW 600KW 800KW 3200KW 4500KW 5000KW 6000KW 8000KW 9000KW 16MW 18MW
500/5 RBU7CNC RBU7CYC RBU7DAC RBU7DNC RBU7DTC RBU7DWC RBU7DYC RBU7BAD RBU7BCD RBU7BGD RBU7BHD
(100:1) 400KW 800KW 1000KW 4000KW 6000KW 7000KW 8000KW 10MW 12MW 20MW 24MW
600/5 XAG7CPC XAG7CZC RBU7DCC XAG7DPC RAS7DWC XGJ7DYC XAG7DZC RBU7BCD RAS7BDD RBU7BHD TBH7BJD
(120:1) 450KW 900KW 1200KW 4500KW 7000KW 8000KW 9000KW 12MW 14MW 24MW 25MW
800/5 XAG7CTC XAG7DCC RBU7HEC XAG7DTC XAG7DZC UCA7BAD XAG7BCD RBU7FED XAG7BFD RBU7BLD UKJ7BMD
(160:1) 600KW 1200KW 1600KW 6000KW 9000KW 10MW 12MW 16MW 18MW 32MW 35MW
1000/5 RBU7CYC RBU7HEC RBU7DGC RBU7DYC RBU7BCD RBU7BDD RBU7FED RBU7BGD RBU7BHD RBU7BND XAG7BPD
(200:1) 800KW 1600KW 2000KW 8000KW 12MW 14MW 16MW 20MW 24MW 40MW 45MW
1200/5 XAG7CZC XAG7DFC RBU7DHC XAG7DZC RAS7BDD XGJ7FED XAG7BFD RBU7BHD TBH7BJD XAG7BPD TBH7BRD
(240:1) 900KW 1800KW 2400KW 9000KW 14MW 16MW 18MW 24MW 25MW 45MW 50MW
1500/5 RBU7DCC RBU7DHC RBU7DKC RBU7BCD RBU7BFD XGJ7BGD RBU7BHD RBU7BKD RAS7BMD RBU7BTD RAS7BWD
(300:1) 1200KW 2400KW 3000KW 12MW 18MW 20MW 24MW 30MW 35MW 60MW 70MW
2000/5 RBU7HEC RBU7DLC RBU7DNC RBU7FED RBU7BHD UCA7BJD RBU7BLD RBU7BND XAG7BPD RBU7BYD XAG7BZD
(400:1) 1600KW 3200KW 4000KW 16MW 24MW 25MW 32MW 40MW 45MW 80MW 90MW
2500/5 RBU7DGC RBU7DNC RBU7DRC RBU7BGD RBU7BKD RBU7BMD RBU7BND RBU7BRD RBU7BTD RBU7CAD RBU7CCD
(500:1) 2000KW 4000KW 5000KW 20MW 30MW 35MW 40MW 50MW 60MW 100MW 120MW
3000/5 RBU7DHC XAG7DPC RBU7DTC RBU7BHD RAS7BMD XGJ7BND XAG7BPD RBU7BTD RAS7BWD RBU7CCD RAS7CDD
(600:1) 2400KW 4500KW 6000KW 24MW 35MW 40MW 45MW 60MW 70MW 120MW 140MW
4000/5 RBU7DLC XAG7DTC RBU7DYC RBU7BLD XAG7BPD UCA7BRD XAG7BTD RBU7BYD XAG7BZD RBU7GED XAG7CFD
(800:1) 3200KW 6000KW 8000KW 32MW 45MW 50MW 60MW 80MW 90MW 160MW 180MW
5000/5 RBU7DNC RBU7DYC RBU7BAD RBU7BND RBU7BTD RBU7BWD RBU7BYD RBU7CAD RBU7CCD RBU7CGD RBU7CHD
(1000:1) 4000KW 8000KW 10MW 40MW 60MW 70MW 80MW 100MW 120MW 200MW 240MW
AB-40 Cat. No. 103251A..... Find Digits 8-14 & scale at
AB-16 Cat. No. 121251A..... Intersection of C.T. & P.T. Ratios
(For zero center change Digit 6 from 1 to 2)
RATIO
{
15
SWITCHBOARD INSTRUMENTS
TABLE IV
Varmeter Selector
For 3-Wire 3-Phase (2-element) Varmeter rated 5A 120V (Zero-Center)
C.T. P.T. RATIO
240/120 480/120 600/120 2400/120 3600/120 4200/120 4800/120 6000/120 7200/120 12000/120 14400/120
(2:1) (4:1) (5:1) (20:1) (30:1) (35:1) (40:1) (50:1) (60:1) (100:1) (120:1)
25/5 TAJ7ARC TAJ7BAC TAJ7FCC TAJ7BRC TAJ7BXC NKK7BYC TAJ7CAC TAJ7GCC TAJ7CEC TAJ7CJC TAJ7CKC
(5:1) 5KVAR 10KVAR 12.5KVAR 50KVAR 75KVAR 80KVAR 100KVAR 125KVAR 150KVAR 250KVAR 300KVAR
50/5 TAJ7BAC TAJ7BGC TAJ7BJC TAJ7CAC TAJ7CEC TAJ7GGC TAJ7CGC TAJ7CJC TAJ7CKC TAJ7CRC TAJ7CTC
(10:1) 10KVAR 20KVAR 25KVAR 100KVAR 150KVAR 175KVAR 200KVAR 250KVAR 300KVAR 500KVAR 600KVAR
75/5 TAJ7BEC TAJ7BKC WEK7BNC TAJ7CEC WEK7CHC RDH7CJC TAJ7CKC WEK7CNC TAJ7CPC TAJ7CXC TAJ7CZC
(15:1) 15KVAR 30KVAR 40KVAR 150KVAR 240KVAR 250KVAR 300KVAR 400KVAR 450KVAR 750KVAR 900KVAR
100/5 TAJ7BGC TAJ7BNC TAJ7BRC TAJ7CGC TAJ7CKC TAJ7CMC TAJ7CNC TAJ7CRC TAJ7CTC TAJ7DAC TAJ7DCC
(20:1) 20KVAR 40KVAR 50KVAR 200KVAR 300KVAR 350KVAR 400KVAR 500KVAR 600KVAR 1000KVAR 1200KVAR
150/5 TAJ7BKC TAJ7BTC TAJ7BXC TAJ7CKC TAJ7CPC RDH7CRC TAJ7CTC TAJ7CXC TAJ7CZC TAJ7DEC SAJ7HGC
(30:1) 30KVAR 60KVAR 75KVAR 300KVAR 450KVAR 500KVAR 600KVAR 750KVAR 900KVAR 1500KVAR 1750KVAR
200/5 TAJ7BNC TAJ7BYC TAJ7CAC TAJ7CNC TAJ7CTC TAJ7CWC TAJ7CYC TAJ7DAC TAJ7DCC TAJ7DGC UFJ7DJC
(40:1) 40KVAR 80KVAR 100KVAR 400KVAR 600KVAR 700KVAR 800KVAR 1000KVAR 1200KVAR 2000KVAR 2500KVAR
250/5 TAJ7BRC TAJ7CAC TAJ7GCC TAJ7CRC TAJ7CXC NKK7CYC TAJ7DAC TAJ7HCC TAJ7DED TAJ7DJC TAJ7DKC
(50:1) 50KVAR 100KVAR 125KVAR 500KVAR 750KVAR 800KVAR 1000KVAR 1250KVAR 1500KVAR 2500KVAR 3000KVAR
300/5 TAJ7BTC TAJ7CCC TAJ7CEC TAJ7CTC TAJ7CZC RDH7DAC TAJ7DCC TAJ7DEC SAJ7HGC TAJ7DKC SAJ7DMC
(60:1) 60KVAR 120KVAR 150KVAR 600KVAR 900KVAR 1000KVAR 1200KVAR 1500KVAR 1750KVAR 3000KVAR 3500KVAR
400/5 TAJ7BYC TAJ7GEC TAJ7CGC TAJ7CYC TAJ7DCC WGG7DEC TAJ7HEC TAJ7DGC UFJ7DJC TAJ7DNC UFJ7ARD
(80:1) 80KVAR 160KVAR 200KVAR 800KVAR 1200KVAR 1500KVAR 1600KVAR 2000KVAR 2500KVAR 4000KVAR 5MVAR
500/5 TAJ7CAC TAJ7CGC TAJ7CJC TAJ7DAC TAJ7DEC TAJ7HGC TAJ7DGC TAJ7DJC TAJ7DKC TAJ7ARD TAJ7ATD
(100:1) 100KVAR 200KVAR 250KVAR 1000KVAR 1500KVAR 1750KVAR 2000KVAR 2500KVAR 3000KVAR 5MVAR 6MVAR
600/5 TAJ7CCC UFJ7CJC TAJ7CKC TAJ7DCC SAJ7HGC RDH7DGC TAJ7DHC TAJ7DKC SAJ7DMC TAJ7ATD UFJ7AXD
(120:1) 120KVAR 250KVAR 300KVAR 1200KVAR 1750KVAR 2000KVAR 2400KVAR 3000KVAR 3500KVAR 6MVAR 7.5MVAR
800/5 TAJ7GEC PJB7CKC TAJ7CNC TAJ7HEC UFJ7DJC WGG7DKC PJB7DKC TAJ7DNC UFJ7ARD TAJ7AYD UFJ7BAD
(160:1) 160KVAR 300KVAR 400KVAR 1600KVAR 2500KVAR 3000KVAR 3000KVAR 4000KVAR 5MVAR 8MVAR 10MVAR
1000/5 TAJ7CGC TAJ7CNC TAJ7CRC TAJ7DGC TAJ7DKC TAJ7DMC TAJ7DNC TAJ7ARD TAJ7ATD TAJ7BAD TAJ7BCD
(200:1) 200KVAR 400KVAR 500KVAR 2000KVAR 3000KVAR 3500KVAR 4000KVAR 5MVAR 6MVAR 10MVAR 12MVAR
1200/5 UFJ7CJC UFJ7CRC TAJ7CTC UFJ7DJC SAJ7DMC RDH7DNC UFJ7ARD TAJ7ATD UFJ7AXD TAJ7BCD UFJ7BED
(240:1) 250KVAR 500KVAR 600KVAR 2500KVAR 3500KVAR 4000KVAR 5MVAR 6MVAR 7.5MVAR 12MVAR 15MVAR
1500/5 TAJ7CKC TAJ7CTC TAJ7CXC TAJ7DKC TAJ7DPC RDH7ARD TAJ7ATD TAJ7AXD TAJ7AZD TAJ7BED SAJ7FGD
(300:1) 300KVAR 600KVAR 750KVAR 3000KVAR 4500KVAR 5MVAR 6MVAR 7.5MVAR 9MVAR 15MVAR 17.5MVAR
2000/5 TAJ7CNC TAJ7CYC TAJ7DAC TAJ7DNC TAJ7ATD TAJ7AWD TAJ7AYD TAJ7BAD TAJ7BCD TAJ7BGD UFJ7BJD
(400:1) 400KVAR 800KVAR 1000KVAR 4000KVAR 6MVAR 7MVAR 8MVAR 10MVAR 12MVAR 20MVAR 25MVAR
2500/5 TAJ7CRC TAJ7DAC TAJ7HCC TAJ7ARD TAJ7AXD NKK7AYD TAJ7BAD TAJ7FCD TAJ7BED TAJ7BJD TAJ7BKD
(500:1) 500KVAR 1000KVAR 1250KVAR 5MVAR 7.5MVAR 8MVAR 10MVAR 12.5MVAR 15MVAR 25MVAR 30MVAR
3000/5 TAJ7CTC TAJ7DCC TAJ7DEC TAJ7ATD TAJ7AZD RDH7BAD TAJ7BCD TAJ7BED SAJ7FGD TAJ7BKD SAJ7BMD
(600:1) 600KVAR 1200KVAR 1500KVAR 6MVAR 9MVAR 10MVAR 12MVAR 15MVAR 17.5MVAR 30MVAR 35MVAR
4000/5 TAJ7CYC TAJ7HEC TAJ7DGC TAJ7AYD TAJ7BCD WGG7BED TAJ7FED TAJ7BGD UFJ7BJD TAJ7BND UFJ7BRD
(800:1) 800KVAR 1600KVAR 2000KVAR 8MVAR 12MVAR 15MVAR 16MVAR 20MVAR 25MVAR 40MVAR 50MVAR
5000/5 TAJ7DAC TAJ7DGC TAJ7DJC TAJ7BAD TAJ7BED TAJ7FGD TAJ7BGD TAJ7BJD TAJ7BKD TAJ7BRD TAJ7BTD
(1000:1) 1000KVAR 2000KVAR 2500KVAR 10MVAR 15MVAR 17.5MVAR 20MVAR 25MVAR 30MVAR 50MVAR 60MVAR
AB-40 Cat. No. 103812A..... Find Digits 8-14 & scale at
AB-16 Cat. No. 121812A..... Intersection of C.T. & P.T. Ratios
RATIO
{
16
SWITCHBOARD INSTRUMENTS
TABLE V
Varmeter Selector (See Notes, Page 3)
For 4-Wire 3-Phase (21⁄2-element) Varmeter rated 5A 208V (Zero-Center)
C.T. P.T. RATIO
240/120 480/120 600/120 2400/120 3600/120 4200/120 4800/120 6000/120 7200/120 12000/120 14400/120
(2:1) (4:1) (5:1) (20:1) (30:1) (35:1) (40:1) (50:1) (60:1) (100:1) (120:1)
25/5 AWP7BAC AWP7BGC AWP7BJC AWP7CAC AWP7CEC AWP7GGC AWP7CGC AWP7CJC AWP7CKC AWP7CRC AWP7CTC
(5:1) 10KVAR 20KVAR 25KVAR 100KVAR 150KVAR 175KVAR 200KVAR 250KVAR 300KVAR 500KVAR 600KVAR
50/5 AWP7BGC AWP7BNC AWP7BRC AWP7CGC AWP7CKC AWP7CMC AWP7CNC AWP7CRC AWP7CTC AWP7DAC AWP7DCC
(10:1) 20KVAR 40KVAR 50KVAR 200KVAR 300KVAR 350KVAR 400KVAR 500KVAR 600KVAR 1000KVAR 1200KVAR
75/5 AWP7BKC AWP7BTC AWP7BXC AWP7CKC AWP7CPC KWE7CRC AWP7CTC AWP7CXC AWP7CZC AWP7DEC AWP7DFC
(15:1) 30KVAR 60KVAR 75KVAR 300KVAR 450KVAR 500KVAR 600KVAR 750KVAR 900KVAR 1500KVAR 1800KVAR
100/5 AWP7BNC AWP7BYC AWP7CAC AWP7CNC AWP7CTC AWP7CWC AWP7CYC AWP7DAC AWP7DCC AWP7DGC AWP7DHC
(20:1) 40KVAR 80KVAR 100KVAR 400KVAR 600KVAR 700KVAR 800KVAR 1000KVAR 12000KVAR 2000KVAR 2400KVAR
150/5 AWP7BTC AWP7CCC AWP7CEC AWP7CTC AWP7CZC KWE7DAC AWP7DCC AWP7DEC AWP7DFC AWP7DKC ANS7DMC
(30:1) 60KVAR 120KVAR 150KVAR 600KVAR 900KVAR 1000KVAR 1200KVAR 1500KVAR 1800KVAR 3000KVAR 3500KVAR
200/5 AWP7BYC AWP7GEC AWP7CGC AWP7CYC AWP7DCC AWP7DDC AWP7HEC AWP7DGC AWP7DHC AWP7DNC KSC7DPC
(40:1) 80KVAR 160KVAR 200KVAR 800KVAR 1200KVAR 1400KVAR 1600KVAR 2000KVAR 2400KVAR 4000KVAR 4500KVAR
250/5 AWP7CAC AWP7CGC AWP7CJC AWP7DAC AWP7DEC AWP7HCC AWP7DGC AWP7DJC AWP7DKC AWP7DRC AWP7DTC
(50:1) 100KVAR 200KVAR 250KVAR 1000KVAR 1500KVAR 1750KVAR 2000KVAR 2500KVAR 3000KVAR 5000KVAR 6000KVAR
300/5 AWP7CCC AWP7CHC AWP7CKC AWP7DCC AWP7DFC KWE7DGC AWP7DHC AWP7DKC ANS7DMC AWP7DTC ANS7DWC
(60:1) 120KVAR 240KVAR 300KVAR 1200KVAR 1800KVAR 2000KVAR 2400KVAR 3000KVAR 3500KVAR 6000KVAR 7000KVAR
400/5 AWP7GEC AWP7CLC AWP7CNC AWP7HEC AWP7DHC JTA7DJC AWP7DLC AWP7DNC KSC7DPC AWP7DYC KSC7DZC
(80:1) 160KVAR 320KVAR 400KVAR 1600KVAR 2400KVAR 2500KVAR 3200KVAR 4000KVAR 4500KVAR 8000KVAR 9000KVAR
500/5 AWP7CGC AWP7CNC AWP7CRC AWP7DGC AWP7DKC AWP7DMC AWP7DNC AWP7DRC AWP7DTC AWP7BAD AWP7BCD
(100:1) 200KVAR 400KVAR 500KVAR 2000KVAR 3000KVAR 3500KVAR 4000KVAR 5000KVAR 6000KVAR 10MVAR 12MVAR
600/5 AWP7CHC KSC7CPC AWP7CTC AWP7DHC ANS7DMC KWE7DNC KSC7DPC AWP7DTC ANS7DWC AWP7BCD ANS7BDC
(120:1) 240KVAR 450KVAR 600KVAR 2400KVAR 3500KVAR 4000KVAR 4500KVAR 6000KVAR 7000KVAR 12MVAR 14MVAR
800/5 AWP7CLC KSC7CTC AWP7CYC AWP7DLC KSC7DPC JTA7DRC KSC7DTC AWP7DYC KSC7DZC AWP7FED KSC7BFD
(160:1) 320KVAR 600KVAR 800KVAR 3200KVAR 4500KVAR 5000KVAR 6000KVAR 8000KVAR 9000KVAR 16MVAR 18MVAR
1000/5 AWP7CNC AWP7CYC AWP7DAC AWP7DNC AWP7DTC AWP7DWC AWP7DYC AWP7BAD AWP7BCD AWP7BGD AWP7BHD
(200:1) 400KVAR 800KVAR 1000KVAR 4000KVAR 6000KVAR 7000KVAR 8000KVAR 10MVAR 12MVAR 20MVAR 24MVAR
1200/5 KSC7CPC KSC7CZC AWP7DCC KSC7DPC ANS7DWC KWE7DYC KSC7DZC AWP7BCD ANS7BDC AWP7BHD JLJ7BJD
(240:1) 450KVAR 900KVAR 1200KVAR 4500KVAR 7000KVAR 8000KVAR 9000KVAR 12MVAR 14MVAR 24MVAR 25MVAR
1500/5 AWP7CTC AWP7DCC AWP7DEC AWP7DTC AWP7DZC KWE7BAD AWP7BCD AWP7BED AWP7BFD AWP7BKD ANS7BMD
(300:1) 600KVAR 1200KVAR 1500KVAR 6000KVAR 9000KVAR 10MVAR 12MVAR 15MVAR 18MVAR 30MVAR 35MVAR
2000/5 AWP7CYC AWP7HEC AWP7DGC AWP7DYC AWP7BCD AWP7BDC AWP7FED AWP7BGD AWP7BHD AWP7BND KSC7BPD
(400:1) 800KVAR 1600KVAR 2000KVAR 8000KVAR 12MVAR 14MVAR 16MVAR 20MVAR 24MVAR 40MVAR 45MVAR
2500/5 AWP7DAC AWP7DGC AWP7DJC AWP7BAD AWP7BED AWP7FGD AWP7BGD AWP7BJD AWP7BKD AWP7BRD AWP7BTD
(500:1) 1000KVAR 2000KVAR 2500KVAR 10MVAR 15MVAR 17.5MVAR 20MVAR 25MVAR 30MVAR 50MVAR 60MVAR
3000/5 AWP7DCC AWP7DHC AWP7DKC AWP7BCD AWP7BFD KWE7BGD AWP7BHD AWP7BKD ANS7BMD AWP7BTD ANS7BWD
(600:1) 1200KVAR 2400KVAR 3000KVAR 12MVAR 18MVAR 20MVAR 24MVAR 30MVAR 35MVAR 60MVAR 70MVAR
4000/5 AWP7HEC AWP7DLC AWP7DNC AWP7FED AWP7BHD JTA7BJD AWP7BLD AWP7BND KSC7BPD AWP7BYD KSC7BZD
(800:1) 1600KVAR 3200KVAR 4000KVAR 16MVAR 24MVAR 25MVAR 32MVAR 40MVAR 45MVAR 80MVAR 90MVAR
5000/5 AWP7DGC AWP7DNC AWP7DRC AWP7BGD AWP7BKD AWP7BMD AWP7BND AWP7BRD AWP7BTD AWP7CAD AWP7CCD
(1000:1) 2000KVAR 4000KVAR 5000KVAR 20MVAR 30MVAR 35MVAR 40MVAR 50MVAR 60MVAR 100MVAR 120MVAR
AB-40 Cat. No. 103742B..... Find Digits 8-14 & scale at
AB-16 Cat. No. 121742B..... Intersection of C.T. & P.T. Ratios
RATIO
{
17
SWITCHBOARD INSTRUMENTS
Scales
1. Uncalibrated
2. Special marked scales
3. Special legends
4. Colored markings, lines or arcs
other than black.
5. Fine line marking (approximately
twice the normal calibration marks
— maximum 150 calibration marks
6. Black scale — white markings
7. a) Double set of numbers —
Single set of divisions
b) Triple set of numbers —
Single set of divisions
8. a) Double set of numbers —
Double set of divisions
b) Triple set of numbers —
Double set of divisions
9. Zero-center scales —
DC ammeters, DC milliammeters,
DC voltmeters, AC wattmeters and
varmeters. Not available for AC
ammeters, voltmeters
10. Offset-zero scale — Available for
varmeters, AC wattmeters, DC
ammeters and DC voltmeters
Ratings and Calibration
11. Special calibration in accordance
with data supplied by customers
12. Calibration at any angle other
than vertical — Specify angle.
Note: DC instruments can be used
up to a 30° tilt from vertical with-
out additional error
13. Terminal resistance and/or toler-
ance other than standard
tolerance (±15%)
14. Special sensitivities for DC taut-
band voltmeters. Standard
sensitivities are:
zero-left: 1000 ohms/volts
zero-center: 2000 ohms/volts
15. Special frequency calibration
a) Any frequency 25 to 400 Hertz.
b) Over 400 Hertz, consult factory.
Note: Does not apply to tempera-
ture indicators
16. Double-rated voltmeters and
ammeters (includes double-
marked scale if required). Double
ratings should be chosen to allow
a single set of divisions whenever
possible. AC ammeters can have
double rating only when one cur-
rent is double the other (e.g., 2.5/5
amperes)
Double-rated DC ammeters are
not recommended
17. Wattmeters & varmeters with cur-
rent coils rated other than 5
amperes.
18. Accuracy other than listed
19. Suppressed zero — Maximum
suppression 20% of scale.
Construction
20. Weathertight case (standard on
metal case AB/DB-40, no adder.
Not available on AB/DB-16 models)
21. Red manual-set pointer(s) 1 or 2
(AB/DB-40 only). Adjustable over
entire scale from the front of the
instrument
22. Anti-glare window AB/DB-40 only
23. Wooden-box packaging for export
shipping
24. Tagging Dymotape or Paper
25. Optional extra-short case (overall
depth 3.41") for metal case amps
and volts only.
26. Component mark for Canada. Add
“/CSA” to suffix of catalog number.
Optional Features for AB/DB 40, AB/DB 16
The words “Spindle,” “Table,” “Roll,” “Motor,” “T urbine” can be added to the above at no extra cost.
Also, when necessary, the multipliers, “X-10,” “X-100,” or “X-1000” will be added to these legends.
% KW
Hz
FPS
KPS
YPS
CPM
FPM
IPM
KPM
RPM
YPM
CPH
FPH
IPH
KPH
MPH
RPH
YPH
PPH
PSI
LBS
PSIG
GPH
PSIA
IPS
PPS
RPM
GPM
In. H2O
Standard Scale Legends
AC Volts or Kilovolts
AC Amperes, or Kiloamperes
AC Watts, Kilowatts or Megawatts
Vars, Kilovars or Megavars
Synchroscope
Power Factor
Hertz
Phase Angle
DC Volts, or Kilovolts
or Milliamperes
DC Watts or Kilowatts
Percent-Motor-Load Current
Percent Horsepower
Degrees C
Degrees F
Degrees K
Degrees R
Kilo-Ohms
Horsepower
Percent
Percent Load
VA. In HG
18
SWITCHBOARD INSTRUMENTS
Indicator Type Minimum Maximum
AC Voltmeter RMS 25 Hertz 1000 Hertz
rectifier 50 Volts 750 Volts
Rectifier 25 Hertz 3000 Hertz
8 Volts 750 Volts
AC Ammeter RMS 25 Hertz 1000 Hertz
rectifier 0.3 Ampere 30 Amperes
AC Milliammeter RMS 25 Hertz 1000 Hertz
rectifier 300 Milliamperes 1000 Milliamperes
Rectifier 25 Hertz 3000 Hertz
0.5 Milliamperes 100 Milliamperes
AC Wattmeter Single Phase 25 Hertz 1000 Hertz
1-phase 380 CW*† 760 CW*†
2-wire 190-0-190 CW*†
69 Volts 600 Volts
1 Ampere 10 Amperes
AC Wattmeter Polyphase 25 Hertz 1000 Hertz
3-phase 380 CW*† 760 CW*†
3-wire Voltage Unbalanced 190-0-190 CW*† 600 Volts
3-phase 69 Volts 10 Amperes
4-wire Voltage Balanced 1 Ampere
AC Varmeter Single Phase 25 Hertz 1000 Hertz
380 CW*†
1-phase 190-0-190 CW*† 760 CW*†
2-wire 69 Volts 600 Volts
1 Ampere 10 Amperes
AC Varmeter Polyphase 25 Hertz 1000 Hertz
658 CW*†
3-phase 329-0-329 CW*† 1316 CW*†
3-wire Voltage Balanced 69 Volts 600 Volts
1 Ampere 10 Amperes
AC Varmeter Polyphase 25 Hertz 1000 Hertz
760 CW*†
3-phase 380-0-380 CW*† 1520 CW*†
4-wire Voltage Balanced 69 Volts 600 Volts
1 Ampere 10 Amperes
Frequency Meter 2 Hertz Span
Synchroscope 50 Hertz 400 Hertz
Power-factor Single Phase 60 Hertz 60 Hertz
Meter 120 Volts 240 Volts
1-phase 0.1 Amperes 5 Amperes
2-wire
Power-factor Polyphase 60 Hertz 60 Hertz
Meter 120 Volts 240 Volts
3-phase, 3-wire Unbalanced Systems 5 Amperes 5 Amperes
3-phase, 4-wire
Power-factor Polyphase 25 Hertz 400 Hertz
Meter 120 Volts 600 Volts
3-phase, 3-wire 0.1 Amperes 5 Amperes
Balanced System
3-phase, 4-wire
AC Ground 25 Hertz 1000 Hertz
Detector 50 Volts 750 Volts
DC Millivoltmeter 50 Millivolts 1000 Millivolts
200 Ohm/Volt 5000 Ohm/Volt
DC Voltmeter 1 Volt 750 Volts
200 Ohm/Volt 5000 Ohm/Volt
DC Microammeter Microamperes: 1000 Microamperes
DB-40-200
DB-16-300
DC Milliammeter 1 Milliampere 1000 Milliamperes
DC Ammeter 1 Ampere 30 Amperes
Shunt-rated 50 Millivolts 1000 Millivolts
DC Ground 50 Millivolts 750 Volts
Detector 200 Ohms/Volts 5000 Ohms/Volts
Temperature 180 F Span 250 F Span
100 C 140 C
120 Volts 10 Ohms —100F +260 F
cu. — 73 C +127 C
50-600 Hertz
Minimum and Maximum Ratings For AB/DB 40, AB/DB 16
{
}}
† Calibrating watts *Applies only to 120-volt/5-ampere models; other ratings in proportion.
DC Milliammeters
Rating Ohms Terminal Resistance ± 15%
(mA) DB-40 DB-16
0-1 185 185
0-2 18 18
0-5 10 10
0-10 5 5
0-30 1.7 1.7
0-50 1 1
0-100 0.5 0.5
0-200 0.25 0.25
0-300 0.17 0.17
0-500 0.1 0.1
10-50 12.5 12.5
4-20 6 6
1-5 26.5 26.5
19
SWITCHBOARD INSTRUMENTS
Specifications, Burden Data — AC Meters
Inductance
in Henries
Type Effective or Capa- Reactive
Impedance Resistance citance in Volt- Volt- Power
in Ohms in Ohms Microfarads amperes Watts amperes Factor
120-Volt, 60-Hertz Potential Circuit
Voltmeters, AB-16/40 . . . . . . . . . . 28,100 28,100 0 0.51 0.51 0 1.0
Expanded-scale Voltmeters . . . . . . 15,400 15,400 0 0.94 0.94 0 1.0
Single phase Wattmeters*
AB-16/40 . . . . . . . . . . . . . . . . . . 6,920 4,460 14H 2.08 1.34 1.59 0.64
Polyphase Wattmeters* . . . . . . . . (Lagging)
AB-16/40
Terminal #6 to #8 on 3W 3P . . . 7,250 4,370 15H 2.0 1.2 1.6 0.6
Terminal #8 to #11 on 4W 3P . . (Lagging)
Terminal #2 to #8 on 3 W 3P . . .
Terminal #3 to #11 on 4W 3P . . 105,000 105,000 0 0.14 0.14 0 1.0
Power Factor Meters, AB-16/40
Single-phase . . . . . . . . . . . . . . . 18,320 4,660 0.15µF 0.79 0.20 0.76 0.26
Terminal . . . . . . . . (Leading)
Three-phase #2 to #5 . . . . . . . . above 10MΩabove 10MΩ—0 00 —
#3 to #5 . . . . . . . . above 10MΩabove 10MΩ—0 00 —
#2 to #3 . . . . . . . . 21,200 21,200 0 0.68 0.68 0 1.0
Frequency Meters, AB-16/40
55-65, 50-70, 58-62, 45-55 . . . . . 9,370 9,370 0 1.54 1.54 0 1.0
350-450 . . . . . . . . . . . . . . . . . . . 9,470 9,470 0 1.52 1.52 0 1.0
Synchroscope, Running . . . . . . . . . 2,750 2,690 1.6H 5.2 5.1 0.2 0.98
(Lagging)
Incoming . . . . . . . . 2,570 2,160 3.7µF 5.6 4.7 3.0 0.84
(Leading)
5-Ampere, 60-Hertz Current Circuit
Ammeters, AB 16/40 . . . . . . . . . . . 0.013 0.013 0 0.32 0.32 0 1.0
Single and Polyphase Wattmeters*,
AB-16/40 . . . . . . . . . . . . . . . . . . 0.018 0.018 0 0.43 0.43 0 1.0
Single and Polyphase Varmeters*,
AB-16/40 . . . . . . . . . . . . . . . . . . 0.018 0.018 0 0.43 0.43 0 1.0
Single and Polyphase Power Factor
Meters . . . . . . . . . . . . . . . . . . . . 0.036 0.036 0 0.91 0.91 0 1.0
*Data based on a per-element basis
Specifications, Burden Data — DC Meters
DC Voltmeters
Rating Sensitivity (Ohms Per Volt)
(Volts) DB-40 DB-16
From 15 To 750 1,000 Zero Left 1,000 Zero Left
2,000 Zero Center 2,000 Zero Center
DC Millivoltmeters
Calibrated for 2-way
Lead Resistance Ohms Terminal
Rating of 0.05 Ohms as Resistance ± 15%
(mV) standard** DB-40 DB-16
0-50 0.05 25 25
50-0-50 0.05 50 50
0-100 0.05 50 50
100-0-100 0.05 100 100
DC Ammeters
Rating Ohms Terminal Resistance ± 15%
(Amperes) DB-40 DB-16
0-1 0.05 0.05
0-5 0.01 0.01
0-10 0.005 0.005
0-15 0.0033 0.0033
0-20 0.0025 0.0025
0-30 0.0017 0.0017
DC Microammeters
Rating Ohms Terminal Resistance ± 15%
(uA) DB-40 DB-16
0-200 1,600 1,600
0-300 1,050 1,050
0-500 630 630
}
}
{
**Internal lead adjustment potentiometer can be adjusted for other lead
resistances
20
SWITCHBOARD INSTRUMENTS
AC Ammeter
103131xxxx
AC Voltmeter
103021xxxx7xxx
AC Voltmeter
103021xxxx
AC Ammeter
103131xxxx DC Ammeter
10311-xxxx
AC Voltmeter
103021xxxx DC Ammeter
10312-xxxx
AC Voltmeter
103021xxxx7xxx
DC Ground Detector
DC Voltmeter
10301-xxxx
Temperature Indicator
103502xxxx
DC Voltmeter
10317-xxxx
10311-xxxx
Standard Connections
NOTE: UL requires a separate grounding terminal that is provided above a ground symbol ( ).
Connection diagrams for AB/DB16 and AB/DB14 Ammeters and Voltmeters are same as AB/DB40 depicted above.
21
SWITCHBOARD INSTRUMENTS
Single-phase wattmeter and
Varmeter with current transformer
and potential transformer
10321-xxxx7xxx (watt)
103702xxxx7xxx (watt)
10331-xxxx7xxx (var)
103762xxxx7xxx (var)
Three-wire, three-phase wattmeter
with current transformer and
potential transformer
10322-xxxx7xxx
103712xxxx7xxx
Four-wire, three-phase wattmeter
with current transformer and
potential transformer (Balanced V)
10325-xxxx7xxx
103732xxxx7xxx
Connections for 21⁄2element
varmeter, without phase shifting
transformer; used to measure vars
on 4 wire, 3 phase circuits, with
potential transformers (connected
yy) and three current transformers:
(Balanced V)
10329-xxxx7xxx, K = 1.1547
103742xxxx7xxx
See Note 1. Page 12
Connections for polyphase
varmeters for 3 wire, 3 phase.
(Balanced V)
103812xxxx7xxx
10328-xxxx7xxx
Connections for 3 wire, 3 phase
varmeter with phase shifting
transformer. (Balanced V)
10332-xxxx7xxx
103772xxxx7xxx
Connections for 21⁄2element
varmeter used to measure vars on a
3 wire, 3 phase circuit.
(Balanced V)
10329-xxxx7xxx K = 1.1547
103742xxxx7xxx
Connections for 4 wire, 3 phase
varmeter with phase shifting
transformer. (Balanced V)
10334-xxxx7xxx
103792xxxx7xxx
Connections for power-factor meters
with 4 wire 3 phase circuits with
current transformer and potential
transformers. If transformer
secondary voltage is 120, power-
factor instrument should be rated
208 volts.
103402xxxx (Balanced System)
NOTE: UL requires a separate grounding terminal that is provided above a ground symbol ( ).
Phase Sequence 1-2-3 Phase Sequence 1-2-3 Phase Sequence 1-2-3
Phase Sequence 1-2-3
Phase Sequence 1-2-3 Phase Sequence 1-2-3
Standard Connections
22
SWITCHBOARD INSTRUMENTS
Three-wire, Three-phase Power
Factor meter with current
transformers and potential
transformers. (Unbalanced system)
103462xxxx
Single-phase power-factor meter
with current transformer and
potential transformer
103412xxxx
Three-wire, three-phase power-
factor meter with current
transformer and potential
transformers (Balanced System)
103402xxxx
Four wire, three phase power factor
meter with current transformers and
potential transformers (Unbalanced
System)
103472xxxx
Frequency Meter with potential
transformer
103372xxxx Synchroscope with potential
transformers
106452xxxx
NOTE: UL requires a separate grounding terminal that is provided above a ground symbol ( ).
Standard Connections
Phase Sequence 1-2-3
Phase Sequence 1-2-3
Phase Sequence 1-2-3
Short Case Dimensions (Inches)
AB / DB-40 AB/ DB-16
AC V / A — DC V / A AC V / A — DC V / A AC V / A — DC V / A
Frequency Extra Power Factor Frequency Power Factor
Temperature Short 1ΦTemperature 1Φ
Tachometer Case (3Φ3w/4w) Tachometer (3Φ3w/4w)
A 3.79 2.89 3.79 3.75 3.75
B 4.85 3.41 4.85 (5.76) 4.81 4.81 (5.72)
C 0.86 0.86 0.86 0.88 0.88
D 0.32 0.32 0.32 0.38 0.38
E 4.09 4.09 4.09 8.20 8.20
F 4.33 4.33 4.33 8.69 8.69
G 1.06 0.52 1.06 1.06 1.06
23
SWITCHBOARD INSTRUMENTS
Dimensions and Panel Drilling For AB/DB 16 & AB/DB 40 (Metal Case)
Long Case Dimensions (Inches)
AB / DB-40 AB/ DB-16
Wattmeter Synchroscope Wattmeter Synchroscope
Varmeter* Varmeter
A 5.22 5.22 5.19 5.19
B 6.79 6.29 6.76 6.25
C 0.86 0.86 0.88 0.88
D 0.32 0.32 0.38 0.38
E 4.09 4.09 8.20 8.20
F 4.33 4.33 8.69 8.69
H — 8.06 — 8.03
*Short case dimensions in first column above apply to varmeter for use with external phase shifters (10332—, 10377—, 10334—, 10379—.)
Short Case
COVER
CUT OUT
Long Case
G
24
SWITCHBOARD INSTRUMENTS
DIMENSIONS AND PANEL DRILLING
Plastic case AB / DB40 Ammeters and Voltmeters
High shock AB / DB14 Ammeters and Voltmeters
Illuminated AB / DB17 Railroad type Ammeters and Voltmeters
TYPE DIM. “A”
AB-14 4.10
DB-14 3.20
Impedance Effective Inductance Reactive
Type in Resistance in Volt- Watts Volt- Power
Ohms in Ohms Henries amperes amperes Factor
120-VOLT, 60-HERTZ POTENTIAL CIRCUIT
Voltmeters 18,667 18,658 1.546 1.205 1.204 0.0545 0.9993
5-AMPERE, 60-HERTZ CURRENT CIRCUIT
Ammeters 0.00832 0.00792 6.75x10-6 0.208 0.1978 0.064 0.9520
25
SWITCHBOARD INSTRUMENTS
TYPE 180 SINGLE EDGEWISE
Specifications
Accuracy Class:
Standard — ± 1.5% of full-scale span for DC
horizontal and vertical and AC horizontal.
± 2% for AC vertical.
Suppressed zero (mechanical) — ± 2% of full
scale span.
AC Rectifier-type Ammeters and Voltmeters—
Standard ± 2.5% on 60-Hertz sine wave at
25º C.
Scales (Standard):
Ranges — (see following page)
Length — 4.448 inches
Degrees rotation 60 degrees
Color — Background - White
Numerals - Black
Legend - Black
Scale Divisions - Black
Numeral Height —
1
⁄
4
inch
Illumination — Refer to factory
Number of scale divisions — 100 maximum
Scale linearity — DC - linear
AC - non-linear
Maximum number of letters (counting spaces
as letters) on vertical meters, 25; on horizon-
tal meters, 30.
Repeatability: ± 2% of full scale
Overload:
Sustained — 120% for AC and DC voltmeters.
120% for 8 hours for AC and DC ammeters.
Momentary — 10 times rated current applied
for 10 consecutive intervals of
1
⁄
2
second with
one-minute intervals between successive
applications for AC and DC ammeters.
Mechanical overload same as momentary
overload for ammeters.
Response Time:
AC — 4 seconds maximum
DC — 2.5 seconds maximum ≥1 mA
4 seconds maximum < 1 mA
Overshoot:
40% full scale angle maximum
Insulation Level:
Operating — 600 volts
Hi-pot — 5000 volts rms terminals to case for
one minute
Mounting Position For Both Horizontal
and Vertical Meters:
Mounting to a Vertical Panel is standard. If
other mounting angle is necessary, then
angle must be specified and instrument cali-
brated for the specified angle.
Operating Environment:
Temperature (Standard) — ( -4º to +150ºF)
( -20ºC to +65ºC)
Pressure — Atmospheric
Shock — 50 G’s
Corrosive fumes, salt-spray (Refer to factory)
Maximum magnetic field without external
shielding —
(Standard) - DC or AC, 1 gauss for 3% accuracy
(Optional) - Refer to factory for recommenda-
tions to minimize errors
Case:
Material — Base Polycarbonate
Finish — Spray painted
Color — (Standard) - Aluminum
(Optional) - Black
Pointer color — White
Window and Case — Polycarbonate
Magnetic Shielding — DC, self-shielding
AC, soft iron shielding
Gasketed cover (weather resistant) standard
Type Terminals — Stud type
Movement:
AC — Iron vane pivot and jewel
DC — D’arsonval type taut-band
Burden Data
UL RECOGNIZED:
FILE E91703
26
SWITCHBOARD INSTRUMENTS
Scale Terminal ±1.5% ±1.5%
and Resistance, Accuracy Accuracy
Rating Ohms Vertical Horizontal
0–1 V 1000 180 013 LALA 180 011 LALA
0–5 V 5000 180 013 LSLS 180 011 LSLS
0–15 V 15000 180 013 NDND 180 011 NDND
0–30 V 30000 180 013 NLNL 180 011 NLNL
0–50 V 50000 180 013 NTNT 180 011 NTNT
0–80 V 80000 180 013 PDPD 180 011 PDPD
0–150 V 150000 180 013 PZPZ 180 011 PZPZ
0–300 V 300000 180 013 RXRX 180 011 RXRX
0–600 V 600000 180 013 SJSJ 180 011 SJSJ
150–0-150V 150000 180 014 PZPZ 180 012 PZPZ
300–0–300V 300000 180 014 RXRX 180 012 RXRX
Scale Terminal ±1.5% ±1.5%
and Resistance, Accuracy Accuracy
Rating Ohms Vertical Horizontal
DC AMMETERS — SELF-CONTAINED
0–50µA 4735 180 113 CYCY 180 111 CYCY
0–100µA 1480 180 113 DRDR 180 111 DRDR
0–200µA 650 180 113 EAEA 180 111 EAEA
0–500µA 226 180 113 EMEM 180 111 EMEM
0–800µA 562 180 113 EWEW 180 111 EWEW
0–1 mA 40 180 113 FAFA 180 111 FAFA
0–2 mA 20 180 113 FGFG 180 111 FGFG
0–5 mA 10 180 113 FXFX 180 111 FXFX
0–10 mA 5.0 180 113 GZGZ 180 111 GZGZ
0–50 mA 1.0 180 113 HYHY 180 111 HYHY
0–100 mA 0.5 180 113 JRJR 180 111 JRJR
0–200 mA 0.25 180 113 KAKA 180 111 KAKA
0–500 mA 0.10 180 113 KMKM 180 111 KMKM
0–800 mA 0.062 180 113 KWKW 180 111 KWKW
0–1 A 0.05 180 113 LALA 180 111 LALA
0–2 A 0.025 180 113 LELE 180 111 LELE
0–5 A 0.010 180 113 LSLS 180 111 LSLS
0–10 A 0.005 180 113 MTMT 180 111 MTMT
0–15 A 0.003 180 113 NDND 180 111 NDND
0–20 A 0.0025 180 113 NGNG 180 111 NGNG
0–30 A 0.00167 180 113 NLNL 180 111 NLNL
0–40 A 0.00125 180 113 NPNP 180 111 NPNP
0–50 A 0.001 180 113 NTNT 180 111 NTNT
DC AMMETERS D’ARSONVAL TYPE
DC MILLIAMMETERS — MECHANICALLY ZERO-
SUPPRESSED, LIVE-ZERO, SELF-CONTAINED
(To read output of process transmitters, blank legend)
Rating Scale ±2% Accuracy Vertical ±2% Accuracy Horizontal
1–5 mA § 180 183 FYAA 8ABA 180 181 FYAA 8ABA
4–20mA § 180 183 HEAA 8ABA 180 181 HEAA 8ABA
10–50mA § 180 183 HXAA 8ABA 180 181 HXAA 8ABA
§ Pencil calibrated points at .25%, 50%, 75%, 100% of full-scale position
DC AMMETERS — SHUNT-RATED 50 MV
(Lead Resistance = .05Ω–.07Ω)
0–10 A 12.5 180 123 ECMT 180 121 ECMT
0–20 A 12.5 180 123 ECNG 180 121 ECNG
0–30 A 12.5 180 123 ECNL 180 121 ECNL
0–40 A 12.5 180 123 ECNP 180 121 ECNP
0–60 A 12.5 180 123 ECNW 180 121 ECNW
0–80 A 12.5 180 123 ECPD 180 121 ECPD
0–100 A 12.5 180 123 ECPK 180 121 ECPK
0–200 A 12.5 180 123 ECRL 180 121 ECRL
0–300 A 12.5 180 123 ECRX 180 121 ECRX
0–400 A 12.5 180 123 ECSC 180 121 ECSC
0–500 A 12.5 180 123 ECSF 180 121 ECSF
0–600 A 12.5 180 123 ECSJ 180 121 ECSJ
0–800 A 12.5 180 123 ECSN 180 121 ECSN
0–1 kA 12.5 180 123 ECVA 180 121 ECVA
0–50 mV 12.5 180 123 EC† 180 121 EC†
50–0–50 mV 25 180 124 EC† 180 122 EC†
† Order by Description.
DC AMMETERS — SHUNT-RATED 100 MV
(Lead Resistance = .04Ω–.08Ω)
0–100mV 25 180 123 GB† 180 121 GB†
100–0–100mV 50 180 124 GB† 180 122 GB†
† Order by Description.
DC VOLTMETERS — SELF CONTAINED
Scale Transformer ±2% Accuracy ±1.5% Accuracy
Rating Vertical Horizontal
0–1 A 180 143 LALA 180 141 LALA
0–3 A 180 143 LJLJ 180 141 LJLJ
0–5 A 180 143 LSLS 180 141 LSLS
0–10 A Self- 180 143 MTMT 180 141 MTMT
0–15 A Contained 180 143 NDND 180 141 NDND
0–20 A 180 143 NGNG 180 141 NGNG
0–30 A 180 143 NLNL 180 141 NLNL
0–50 A 180 143 NTNT 180 141 NTNT
AC AMMETERS — 40/70 HZ, IRON-VANE TYPE
0–10 A 10/5 180 143 LSMT 180 141 LSMT
0–15 A 15/5 180 143 LSND 180 141 LSND
0–20 A 20/5 180 143 LSNG 180 141 LSNG
0–25 A 25/5 180 143 LSNJ 180 141 LSNJ
0–30 A 30/5 180 143 LSNL 180 141 LSNL
0–40 A 40/5 180 143 LSNP 180 141 LSNP
0–50 A 50/5 180 143 LSNT 180 141 LSNT
0–75 A 75/5 180 143 LSPB 180 141 LSPB
0–100 A 100/5 180 143 LSPK 180 141 LSPK
0–150 A 150/5 180 143 LSPZ 180 141 LSPZ
0–200 A 200/5 180 143 LSRL 180 141 LSRL
0–300 A 300/5 180 143 LSRX 180 141 LSRX
0–400 A 400/5 180 143 LSSC 180 141 LSSC
0–500 A 500/5 180 143 LSSF 180 141 LSSF
0–600 A 600/5 180 143 LSSJ 180 141 LSSJ
0–800 A 800/5 180 143 LSSN 180 141LSSN
0–1 kA 1000/5 180 143 LSVA 180 141 LSVA
0–1.2 kA 1200/5 180 143 LSVB 180 141 LSVB
0–1.5 kA 1500/5 180 143 LSVC 180 141 LSVC
0–2 kA 2000/5 180 143 LSVE 180 141 LSVE
0–3 kA 3000/5 180 143 LSVJ 180 141 LSVJ
0–4 kA 4000/5 180 143 LSVN 180 141 LSVN
AC AMMETERS — TRANSFORMER-RATED - 5 AMP
0–150 V 180 033 PZPZ 180 031 PZPZ
0–300 V Self- 180 033 RXRX 180 031 RXRX
0–500 V Contained 180 033 SFSF 180 031 SFSF
0–600 V 180 033 SJSJ 180 031 SJSJ
AC VOLTMETERS — 60 HZ, IRON-VANE
0–300 V 240/120 180 033 PZRX 180 031 PZRX
0–600 V 480/120 180 033 PZSJ 180 031 PZSJ
0–750 V 600/120 180 033 PZSM 180 031 PZSM
0–3 kV 2400/120 180 033 PZVJ 180 031 PZVJ
0–5.25 kV 4200/120 180 033 PZVV 180 031 PZVV
0–6 kV 4800/120 180 033 PZVX 180 031 PZVX
0–9 kV 7200/120 180 033 PZWJ 180 031 PZWJ
0–15 kV 12000/120 180 033 PZWZ 180 031 PZWZ
0–18 kV 14400/120 180 033 PZXE 180 031 PZXE
AC VOLTMETERS — TRANSFORMER RATED 150 V
27
SWITCHBOARD INSTRUMENTS
Type 180 Optional Features
Dimensions and Panel Cutout
Scale Variations
1. Blank Scales
2. Special marked scales (maximum 100 divisions;
Ref. Notes 3 and 4)
3. Special Legends (Ref. Notes 3 and 4)
4. Colored markings, lines, bars, etc.
5. Black scale with white markings
6. Zero-center Scale DC instruments
Ratings and Calibration
7. Unlisted ratings. Contact factory for other than
listed ratings.
8. Offset-zero scale (DC meters only)
9. Special calibrations in accordance with data
supplied by customer
10. Calibration for use on other than vertical panel
11. Calibration for use on 400 Hertz or other unlist-
ed frequency.
12. High-sensitivity voltmeters
(See Note 2)
13. Special-terminal resistance
14. Internal mounted rheostat
15. Rectifier-type voltmeters 2.5 percent.
16. 1 percent accuracy (DC only)
17. Suppressed zero with operable zero set (DC
only) (See Note 1)
Construction
18. Internal illumination
19. Red pointer (Day-glo)
20. Anti-glare window
21. Black trim case
22. Component mark for Canada. Add “/CSA” to
suffix of catalog number.
Notes:
1. Suppressed zero — Available only on DC mod-
els up to a maximum suppression of 20 percent
of full-scale value. Note: Accuracy is affected on
suppressed-zero instruments.
2. High-sensitivity voltmeters — DC voltmeters can
be offered up to 20,000 ohms/volt. Voltmeters
of high sensitivity draw less current from the
circuit and are used on applications where the
circuit current is so low that instrument resis-
tance will appreciably affect circuit operation.
3. Special legends and/or scales may be obtained
by special order. Maximum number of letters
(counting spaces as letters) on vertical instru-
ments is 25; on horizontal instruments, 30.
Exact wording must be clearly indicated as to
spelling, abbreviation, spacing, etc.
4. Type 180 scales and legends are individual parts
separated by a space for the pointer. Only one
set of divisions can be marked on a scale.
5. No charge for electrical legends.
D
IMENSIONS FOR
T
YPE
180 I
NSTRUMENTS
DWG B3147K22
28
SWITCHBOARD INSTRUMENTS
Miniature Switchboard
Instruments — 2180 Series
GENERAL SPECIFICATIONS
Full Scale Deflection: 250º taut band movement
Full Scale Length: Approx. 140mm (5.5”)
Pointer: Sword type, black
Scale Plate: Platform type, white
Case: ABS resin, black
Cover: Methacrylic acid resin with antistatic processing on both sides.
Standard color . . . Black (Munsell N. 1.5/0) or jade green
(Munsell 7.5 BG4/1.5)
Terminal Plate: Phenol resin, black
Mounting Screw: 5mm dia.
Measuring Terminal: 5mm dia (nut type)
Operating Temperature Range: 0 to 40º C (32 to 104º F)
Storage Temperature Range: -10 to 50º C (14 to 122º F)
Dielectric Strength: 2,600 V AC for one minute between electric circuit
and case
Watts, Vars, Unbalanced Power Factor supplied with external transducer.
Ranges Standard Ratings Catalog Operating
Model Type Available and Scales Number Principle Accuracy
DC Ammeters 500µA ~ 30A 218100 Moving ±1.5% of full
Voltmeters 30V ~ 300V See Table On 218100 coil type scale value
AC Ammeters 500µA ~ 30A Next Page 218200 RMS sensing ±1.5% of full
Voltmeters 3V ~ 600V 218200 transducer type scale value
Voltage Catalog Operating
Type Rating Connection Load Current Elements Number Principle Accuracy
Single-phase 1 218531
3-phase 3-wire Unrestricted 2 218535 ±1.5% of full
Wattmeters Specify Unrestricted scale value
120V/5A 3-phase 4-wire Balanced 2-1/2 218534
or Unrestricted
AC 240V/5A 3-phase 4-wire Unrestricted 3 218536 Feedback Time
input, full Unrestricted Division
scale watt Single-phase 1 218631 Multiplier
or var value, 3-phase 3-wire Balanced 2 218633 Transducer*
frequency Unrestricted ±1.5% of full
Varmeters rating, 3-phase 3-wire Unrestricted 2 218635 scale value
PT and Unresricted
CT Ratio 3-phase 4-wire Balanced 2-1/2 218634
Unrestricted
3-phase 4-wire Unrestricted 3 218636
Unrestricted
Single-phase 1 218731 Phase angle
3-phase 3-wire Balanced 1 218733 sensing
Power 120V/5A Balanced transducer
Factor or 3-phase 3 wire Unrestricted 2 218735 Feedback Time ±5.0% of
Meters 240V/5A Unrestricted Division Scale
3-phase 4-wire Unrestricted 3 218736 Multiplier Transducer* Length
Unrestricted
Frequency 115V or 45-55 Hz, 55-65 Hz Frequency ±0.5% of
Meters 230V 45-66 Hz Rating 218830 sensing center
Available transducer type frequency
*Instrument is furnished with external transducer. Contact Yokogawa for transducer outline and connection drawings.
29
SWITCHBOARD INSTRUMENTS
2180 SERIES STANDARD RATINGS AND SCALES
Example: 218100-AFA-BL is a 0-1mA rating & scale with black cover
DC Ammeters and Voltmeters
Model Number Suffix Rating and scale
2181 00-
Full scale value AEM- 500 µADC
(zero left) AFA- 1mADC
AFG- 2mADC
AHF- 20mADC
AKM- 500mADC
ALA- 1ADC
ALS- 5ADC
AMT- 10ADC
AND- 15ADC
ANG- 20ADC
ANL- 30ADC
A01- 50mVDC (shunt-rated)*
A05- 100mVDC (shunt-rated)*
VNL- 30VDC
VNT- 50VDC
VPK- 100VDC
VPZ- 150VDC
VRX- 300VDC
V01- 1mADC (external multiplier)*
2181 35- 10 to 50mADC*
Suppressed zero 36- 4 to 20mADC*
37- 1-5VDC*
Cover assembly BG Munsell green
BL Munsell black
AC Ammeters and Voltmeters
Model Number Suffix Rating and scale
2182 00-
Full scale value AEM- 500 µAAC
(zero left) AFA- 1mAAC
AFG- 2mAAC
AHF- 20mAAC
AKM- 500mAAC
ALA- 1AAC
ALC- 1.5AAC
ALS- 5AAC
A42- 5AAC (for external CT)*
AMF- 7.5AAC
AMT- 10AAC
ANL- 30AAC
VNL- 30VAC
VNT- 50VAC
VPB- 75VAC
VPK- 100VAC
VPZ- 150VAC
V12- 150VAC (for external PT)*
VRX 300VAC
VSI- 600VAC
V20- 70-130VAC (expanded scl.)*
V21- 140-260VAC (exp. scale)*
Cover assembly BG Munsell green
BL Munsell black
Note: * For ratings and/or scales not listed, please specify as similar to closest rating above and describe in detail.
DIMENSIONS AND PANEL DRILLING
30
SWITCHBOARD INSTRUMENTS
POWER SERIESPlus DIGITAL SWITCHBOARD METER
POWER SERIESPlus fills the need for a high accuracy digital switch-
board meter and transducer that can be configured in the field by
an end-user, or when installed in new electrical equipment by an
OEM. It eliminates requirements for a large inventory of dedicated
instruments, and provides flexibility when new panel designs or
system upgrades require changes in instrument transformer rat-
ings. Our rugged metal case fits standard panel cutouts for switch-
board meters and makes it a perfect replacement for less versatile
instruments. POWER SERIESPlus can also replace separate power
transducers and meters in new equipment designs. An overall
good solution for reduced wiring, panel space reduction, improved
accuracy, and lower system cost.
Measuring Model Available Maximum Electrical Output
Capability Number Connections Input Rating Legend Options
AC Amperes 249111 1 Phase 0-1 A AC Amps AC 0-1mA
249115 0-5A AC Kiloamps AC 4-20MA
AC Voltage 249121 1 Phase 0-150V AC Volts AC 0-1mA
249125 0-300V AC Kilovolts AC 4-20mA
±1mA
Frequency 249181 1 Phase 150V AC Hertz 0-1mA
249183 300V AC 12 ± 8mA
249151 1P2W (select one)
249152 1P3W 120V AC-1 AMP Watts
Watts 249153 3P3W 240V AC-1 AMP Kilowatts
249154 3P4W (21⁄2Element) 120V AC-5 AMP Megawatts
249155 3P4W (3 Element) 240V AC-5 AMP
249161 1P2W (select one)
249162 1P3W 120V AC-1 AMP Vars
Vars 249163 3P3W 240V AC-1 AMP Kilovars
249164 3P4W (21⁄2Element) 120V AC-5 AMP Megavars ± 1mA
249165 3P4W (3 Element) 240V AC-5 AMP 0-1mA
249171 1P2W (select one) 4-20mA
249172 1P3W 120V AC-1 AMP Power Factor 12 ± 8mA
Power Factor 249173 3P3W 240V AC-1 AMP Lag
249174 3P4W (21⁄2Element) 120V AC-5 AMP Lead
249175 3P4W (3 Element) 240V AC-5 AMP
249191 1P2W (select one)
Phase 249192 1P3W 120V AC-1 AMP Phase Angle
Angle 249193 3P3W 240V AC-1 AMP Lag
249194 3P4W (21⁄2Element) 120V AC-5 AMP Lead
249195 3P4W (3 Element) 240V AC-5 AMP
Features:
• PT scaling ratio to 1250:1
• CT scaling ratio to 5000:1 or 25kA
• Adjustable transducer output
• Non-volatile memory
• 0.2% accuracy
•4
1
⁄
2
digit display
• True RMS current and voltage
• Field-settable electrical legends
• Display average setting
capability reduces volatile “digit
bounce”.
POWER SERIESPlus MODEL TYPES AND RATED INPUTS
See general specifications and selector guide on
following pages for complete ordering information.
31
SWITCHBOARD INSTRUMENTS
DISPLAY Type: 31⁄2digit Red LED for Power Factor and Phase Angle
41⁄2digit Red LED for Amps/ Volts/ Watts/ VARS/ Frequency
Digit height: 0.56 inch or 14mm
Decimal points: 3 or 4 position selectable during scaling setup
Out of range indication: Flashing display “HHHH” for high and ”LLLL” for low
Response time: 200 millisecond maximum update time
AUXILIARY Choice of inputs at 120 or 240 VAC (±15%), 45-65Hz
POWER rear terminal board Power consumption-4.5 VA maximum
INPUT Current: 0 to 1 AAC; 0 to 5AAC
RATING Voltage: 0-120VAC, 0-240 VAC (W/VAR/PF/PA); 0-150VAC, 0-300VAC (Volt / Freq)
Frequency: 50/60 Hz and 400 Hz
INPUT RANGE Rated current: A / W / VAR: 0-200% ; PF / PA: 20-200%
Rated voltage: V / W / VAR: 0-120% ; PF / PA: 50-120%; Frequency: 20-120%
SUSTAINED Rated current: A / W / VAR / PF / PA: 200% continuous, 10 x rating for 5 seconds
INPUT Rated voltage: V / W / VAR / FREQ: 120% continuous; PF / PA: 150% continuous
BURDEN Current: <0.2 VA per element
Voltage: 120V: <0.2VA per element; 240V: <0.4 VA per element
ACCURACY Reference condition: Voltage
25ºC, 45-74%RH, at Current ± 0.2% of reading ± 0.1% of full scale
rated input 60Hz sine Watt/VAR
wave, 30 min. warmup Power Factor ± 0.05 Power factor
Phase Angle ± 0.5º Phase Angle
Frequency ± 0.01Hz @ 40-70Hz, ±0.1 Hz @ 300-500 Hz
ANALOG OUTPUT 0 to 1mA, 0 to ± 1mA: 10VDC compliance into 10k ohm load maximum
AND 4 to 20mA, 12 ± 8mA: 15VDC compliance into 750 ohm load maximum
RESPONSE TIME 1 second maximum response time within ±1% of final value
OUTPUT RIPPLE 0.5% peak-to-peak maximum of output span
ISOLATION Input to output/case: 2500 VAC for 1 minute / more than 10 Megohm @ 500VDC
VOLTAGE / Aux. power to case: 2000 VAC to 1 minute / more than 10 Megohm @ 500VDC
INSULATION Aux. power to output: 2000 VAC for 1 minute / more than 10 Megohm @500VDC
RESISTANCE Output to case: 1000 VAC for 1 minute / more than 10 Megohm @ 500VDC
TEMPERATURE Operating: -20 to +60º C at 90% RH maximum (non-condensing)
RANGE Storage: -40 to +85º C
TEMPERATURE 150 PPM / ºC maximum of full scale
COEFFICIENT
EXTERNAL Magnetic field: 0.5% maximum at 400 ampere turns/meter
INFLUENCE Shock / vibration: <0.2% after: 50G x 3axis x 6 repetitions / 16.7Hz, 4 mm p-p for 1 hour
SURGE WITH- SWC tests: Meets IEEE 472 / ANSI C37.90a
STAND VOLTAGE Meets JIS C1111 (5kV 1.2 x 50 microseconds)
DIMENSIONS Reference Page 32 W x D x H = 4.33 x 6.54 x 4.33 inches
WEIGHT Approximately 1000 grams (2.2 lbs)
DESIGN ANSI C39.1
STANDARDS UL Recognition (pending)
NOTE: POWER SERIESPlus Digital Switchboard capability is continually being expanded. Now available: Dual function & communications.
Please call 1-800-258-2552 ext 575 for the latest catalog information.
GENERAL SPECIFICATIONS — POWER SERIESPlus
32
SWITCHBOARD INSTRUMENTS
MODEL FUNCTION/CONNECTIONS AC INPUT RATING FREQUENCY ANALOG OUTPUT
2491 51 WATT 1P2W 11 120 VOLT-1 AMP 5 50/60 Hz AAA No output
52 WATT 1P3W 15 120 VOLT-5 AMP 6 400 Hz AFA 0 to 1 mA
53 WATT 3P3W 21 240 VOLT-1 AMP 8 Special AFB 0 to ±1mA
54 WATT 3P4W (21⁄2element) 25 240 VOLT-5 AMP AHD 4 to 20mA
55 WATT 3P4W (3 element) 33 Special(describe) AHF 12 ± 8mA
61 VARS 1P2W
62 VARS 1P3W
63 VARS 3P3W
64 VARS 3P4W (21⁄2element)
65 VARS 3P4W (3 element)
71 POWER FACTOR 1P2W
72 POWER FACTOR 1P3W
73 POWER FACTOR 3P3W
74 P.F. 3P4W (21⁄2element)
75 P.F. 3P4W (3 element)
91 PHASE ANGLE 1P2W
92 PHASE ANGLE 1P3W
93 PHASE ANGLE 3P3W
94 P.A. 3P4W (21⁄2element)
95 P.A. 3P4W (3 element)
POWER SERIESPlus SELECTOR GUIDE
MODEL INPUT RATING FREQUENCY ANALOG OUTPUT
2491 11 1 AMP AC 1 50/60 Hz AAA No output
15 5 AMP AC 2 400 Hz AFA 0 to 1mA
21 150 V AC 3 Special AFB 0 to ±1mA*
25 300 V AC AHD 4 to 20mA
81 150V FREQ. * Only for frequency
83 300V FREQ.
AC WATTS, VARS, POWER FACTOR AND PHASE ANGLE
AC AMPS/VOLTS/FREQUENCY
OUTLINE DIMENSIONS AND PANEL CUTOUT
MODEL FORMAT: 2491 1 -2 -3-4
MODEL FORMAT: 2491 1 -2 -3
1234
123
33
SWITCHBOARD INSTRUMENTS
POWER SERIESPlus TERMINAL CONNECTIONS
34
SWITCHBOARD INSTRUMENTS
JUXTA POWER TRANSDUCERS
Yokogawa’s JUXTA“AC POWER SERIES“ transducers (2469 & 2489)
are rugged metal case designs for utility and industrial applica-
tions. Most models are UL recognized under File E60579 and
exceed IEEE472/ANSI C37.90.1 Surge Withstand Capability test. The
“SWC” test assures maximum protection from damaging line tran-
sients caused by switchgear operation or lightning strikes
upstream on the system.
Power transducers provide an analog DC Voltage or Current out-
put proportional to an AC input. The input typically comes from
the secondary of potential and/or current transformers such as
150V and 5A AC. The output is linked to remote monitoring equip-
ment such as meters, recorders, PLC’s, SCADA or Energy
Management systems. For most industrial monitoring needs, 0.5%
accuracy is acceptable, and our 2469 Series exceeds this require-
ment. Most power utilities require a higher level of accuracy; and
our 2489 series is a superior choice for those applications.
Below, are the most popular models of both the 2469 and 2489
Power Transducers. For other input and output combinations, con-
nection drawings, specifications and other models, please request
catalog BU-JAC-05E.
Standard transducer inputs / outputs Model type Model type
Input 0-5 Amp AC, 60 Hz 2469 (0.5% Accuracy) 2489 (0.2% Accuracy)
0 -1 mA output / self-powered/60 Hz 246921-380-AFA-0 248921-380-AFA-0
0 -1 mA output / self-powered / rated 50/60 Hz 246921-382-AFA-0 248921-382-AFA-0
True rms / 0-1mA output / 120V auxiliary power 246931-380-AFA-1 248931-380-AFA-1
4-20mA output / 120V auxiliary power 246921-380-AHD-1 248921-380-AHD-1
True rms / 4-20mA output / 120V auxiliary power 246931-380-AHD-1 248931-380-AHD-1
3 in 1 transducer, 0-1mA output / self-powered 246923-380-AFA-0 248923-380-AFA-0
Input 0-150 VAC, 60 Hz 2469 (0.5% Accuracy) 2489 (0.2% Accuracy)
0-1 mA output / self-powered/rated 60 Hz 246922-330-AFA-0 248922-330-AFA-0
0-1 mA output / self-powered / rated 50/60 Hz 246922-332-AFA-0 248922-332-AFA-0
True rms / 0-1mA output / 120V auxiliary power 246932-330-AFA-1 248932-330-AFA-1
4-20mA output / 120V auxiliary power 246922-330-AHD-1 248922-330-AHD-1
True rms / 4-20mA output / 120V auxiliary power 246932-330-AHD-1 248932-330-AHD-1
3 in 1 transducer, 0-1mA output / self-powered 246924-330-AFA-0 248924-330-AFA-0
Input 120VAC, 60 Hz, self-powered 2469 (±2% Span) 2489 (±0.2% Span)
Frequency ± 1.0 Hz deviation, 0-1mA output 246982-320-AFA-0 248982-320-AFA-0
Frequency ± 1.0 Hz deviation, 4-20mA output 246982-320-AHD-0 248982-320-AHD-0
Frequency ± 2.0 Hz deviation, 0-1mA output 246983-320-AFA-0 248983-320-AFA-0
Frequency ± 2.0 Hz deviation, 4-20mA output 246983-320-AHD-0 248983-320-AHD-0
Frequency ± 5.0 Hz deviation, 0-1mA output 246984-320-AFA-0 248984-320-AFA-0
Frequency ± 5.0 Hz deviation, 4-20mA output 246984-320-AHD-0 248984-320-AHD-0
Frequency ± 10 Hz deviation, 0-1mA output 246985-320-AFA-0 248985-320-AFA-0
Frequency ± 10 Hz deviation, 4-20mA output 246985-320-AHD-0 248985-320-AHD-0
Input 120V, 5A AC, 60 Hz, self-powered 2469 (0.5% Accuracy) 2489 (0.2% Accuracy)
Watt 1P2W, 0-1mA output (1 Element) 246951-540-AFA-0 248951-540-AFA-0
Watt 1P2W, 4-20mA output (1 Element) 246951-540-AHD-0 248951-540-AHD-0
Watt 3P3W, 0-1mA output (2 Element) 246953-540-AFA-0 248953-540-AFA-0
Watt 3P3W, 4-20mA output (2 Element) 246953-540-AHD-0 248953-540-AHD-0
Watt 3P4W, 0-1mA output (21⁄2Element) 246954-540-AFA-0 248954-540-AFA-0
Watt 3P4W, 4-20mA output (21⁄2Element) 246954-540-AHD-0 248954-540-AHD-0
Watt 3P4W, 0-1mA output (3 Element) 246955-540-AFA-0 248955-540-AFA-0
Watt 3P4W, 4-20mA output (3 Element) 246955-540-AHD-0 248955-540-AHD-0
Input 120V, 5A AC, 60 Hz, self-powered 2469 (0.5% Accuracy) 2489 (0.2% Accuracy)
VAR 1P2W, 0-1mA output (1 Element) 246961-540-AFB-0-M 248961-540-AFB-0-M
VAR 1P2W, 12±8mA output (1 Element) 246961-540-AHF-0-M 248961-540-AHF-0-M
VAR 3P3W, 0-1mA output (2 Element) 246963-540-AFB-0-M 248963-540-AFB-0-M
VAR 3P3W, 12±8mA output (2 Element) 246963-540-AHF-0-M 248963-540-AHF-0-M
VAR 3P4W, 0-1mA output (21⁄2Element) 246964-540-AFB-0-M 248964-540-AFB-0-M
VAR 3P4W, 12±8mA output (21⁄2Element) 246964-540-AHF-0-M 248964-540-AHF-0-M
VAR 3P4W, 0-1mA output (3 Element) 246965-540-AFB-0-M 248965-540-AFB-0-M
VAR 3P4W, 12±8mA output (3 Element) 246965-540-AHF-0-M 248965-540-AHF-0-M
*Note: Standard calibration is 500W or VARs per element. Otherwise, specify CT/PT ratios and primary WATTS/VARS relative to desired output
for a particular model.
C
U
R
R
E
N
T
V
O
L
T
A
G
E
F
R
E
Q
U
E
N
C
Y
W
A
T
T
S
*
V
A
R
S
*
Standard transducer inputs / outputs Model type Model type
120V, 5A AC, 60 Hz, Input powered 2469 (0.5% Accuracy) 2489 (0.2% Accuracy)
Watt/Var 1P2W, 0 ± 1mA output (1 Element) 246941-540-AFB-0-M 248941-540-AFB-0-M
Watt/Var 1P2W, 4 - 20mA output (1 Element)* 246941-540-AHD-0-M 248941-540-AHD-0-M
Watt/Var 3P3W, 0 ± 1mA output (2 Element) 246943-540-AFB-0-M 248943-540-AFB-0-M
Watt/Var 3P3W, 4 - 20mA output (2 Element)* 246943-540-AHD-0-M 248943-540-AHD-0-M
Watt/Var 3P4W, 0 ± 1mA output (21⁄2Element) 246944-540-AFB-0-M 248944-540-AFB-0-M
Watt/Var 3P4W, 4 - 20mA output (21⁄2Element)* 246944-540-AHD-0-M 248944-540-AHD-0-M
Watt/Var 3P4W, 0 ± 1mA output (3 Element) 246945-540-AFB-0-M 248945-540-AFB-0-M
Watt/Var 3P4W, 4 - 20mA output (3 Element)* 246945-540-AHD-0-M 248945-540-AHD-0-M
120V, 5A AC, 60 Hz, 0-1- OPF Input powered 2469 (± 0.01PF) 2489 (± 0.01PF)
Power Factor - Single phase / ±1mA output 246971-540-AFB-0-P 248971-540-AFB-0-P
Power Factor - Single phase / 12±8mA output 246971-540-AHF-0-P 248971-540-AHF-0-P
Power Factor - 3P3W balanced / ±1mA output 246973-540-AFB-0-P 248973-540-AFB-0-P
Power Factor - 3P3W balanced / 12±8mA output 246973-540-AHF-0-P 248973-540-AHF-0-P
Power Factor - 3P4W balanced / ±1mA output 246974-540-AFB-0-P 248974-540-AFB-0-P
Power Factor - 3P4W balanced / 12±8mA output 246974-540-AHF-0-P 248974-540-AHF-0-P
120V, 5A AC, 60 Hz, ±90º PA, Input powered 2469 (± 2º Accuracy) 2489 (± 1º Accuracy)
Phase Angle - Single phase / ±1mA output 246976-540-AFB-0-P 248976-540-AFB-0-P
Phase Angle - Single phase / 12±8mA output 246976-540-AHF-0-P 248976-540-AHF-0-P
Phase Angle - 3P3W balanced / ±1mA output 246977-540-AFB-0-P 248977-540-AFB-0-P
Phase Angle - 3P3W balanced / 12±8mA output 246977-540-AHF-0-P 248977-540-AHF-0-P
Phase Angle - 3P4W balanced / ±1mA output 246978-540-AFB-0-P 248978-540-AFB-0-P
Phase Angle - 3P4W balanced / 12±8mA output 246978-540-AHF-0-P 248978-540-AHF-0-P
DC Input / Output, 115V AC Aux. powered 2469 (±0.5%)
0-50mVDC / 0-1mADC 246911-001-AFA-1
0-50mVDC / 4-20mADC 246911-001-AHD-1
0-50mVDC / 0-10VDC 246911-001-VMT-1
0-1mADC / 0-1mADC 246912-101-AFA-1
0-1mADC / 4-20mADC 246912-101-AHD-1
0-1mADC / 0-10VDC 246912-101-VMT-1
35
SWITCHBOARD INSTRUMENTS
General Specifications: 2469 2489
Accuracy: 0.5% of span 0.2% of reading
Sustained input overrange: Voltage: 120% continuous, 150% for 5 seconds
Current: 200% continuous, 1000% for 5 seconds
Outputs: 0 to ±1mA DC into 10kOhm max., 10V DC compliance
4 to 20mA DC into 750 Ohm max., 15V DC compliance
Output adjust: zero ± 1% minimum zero ± 5% minimum
span ± 2% minimum span ± 10% minimum
Output ripple: <0.3% fullscale peak to peak <0.5% fullscale peak to peak
Response time: <400 milliseconds 0-99% of full scale
* Note: VAR outputs are 12±8mA
**Not UL
W
A
T
T
-
V
A
R
I
S
O
L
A
T
O
R
P
O
W
E
R
F
A
C
T
O
R
P
H
A
S
E
A
N
G
L
E
JUXTA POWER TRANSDUCERS
*
*
36
SWITCHBOARD INSTRUMENTS
Model Exception: Hole Diameter Primary Amperes Accuracy Burden (VA) Approx.
Code (inches) Min/Max Varies with Transformer Ratio Weight (lbs)
2 RBL, RBT, RT 1.0 to 1.13 50-300A 1 - 3% 1.5 - 15.0 0.5
5 — 1.56 50-1200A 1 - 2% 1.0 - 30.0 1.0
7 — 2.50 150-1600A 1% 2.5 - 45.0 1.5
14 SHT, SHL 0.50 50-100A 1.0 - 1.5% 2.5 - 3.0 0.9
15 SHT, SHL 0.94 50-200A 1.0 - 1.5% 2.0 - 12.5 0.9
16 SHT, SHL 1.25 50-400A 1% 1.0 - 15.0 0.9
56 SHT, SHL 2.06 75-1200A 1% 0.5 - 15.0 0.6
76 SHT, SHL 3.00 200-2000A 1% 5.0 - 15.0 0.9
CURRENT TRANSFORMERS WITH 5 AMP SECONDARIES
[Table One] MODEL TYPE
To construct a catalog number select from following tables: [Table One]-[Table Two]-[Table Three]-[Table Four]
Example: Model 5SFT - 501 is a CT with a 1.56” hole diameter, square body with mounting plate
and terminal studs and a ratio of 500:5 amperes.
Case Code Description
SH Square Body without Integral Mounting Plate
SF Square Body with Integral Mounting Plate
R Round Body without Removable Mounting Bracket
RB Round Body with Removable Mounting Bracket
[Table Two] MOUNTING/CASE STYLE
Connection Code Description
T 8-32 Brass Terminal Studs with Nut & Flatwasher
L #16 AWG, 24 inches long (UL1015 - 105˚C)
[Table Three] CONNECTIONS
Insert First 2 Digits of Primary Insert Result
Current Rating Multiplier
0 = x 10
0
50 : 5
Example: 50 1 = x 10
1
500 : 5
2 = x 10
2
5000 : 5
[Table Four] CURRENT RATIO
To select the transformer ratio, the first 2 digits in Table 4 equal the 2 most
significant digits (MSD) of the transformer fullscale current. The last digit is
the multiplier, it is equal to the number of zeros of the primary current.
Some transformers will have 3 MSD (ex. 125:5). The multiplier will go after
the third digit. An example of a 125:5 CT is 2RL-1250
Notes:
(1) Yokogawa Current and Potential Transformers are
component recognized under UL E93779 and CSA
LR89403
(2) All CT’s are insulation class 0.6kV, BIL 10kV full
wave. Frequency 50 - 400 Hz.
(3) For complete information please request catalog
500CTPT-B.
RT
SFT RL
RBL RBT
