MECHANICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
For energy metering on single and poly-phase electronic
watt-hour meters.
Available for class 2 and 3 per reactive energy IEC62053-23
Accuracy class 0.5 and 0.2 as per ANSI C12.20 and
IEC 62053-22 for AC transformers.
AC capability 20, 200, 320, 400 and 640 Amperes.
Epoxy or tape wrapped coil protection
For energy metering on single and poly-phase electronic
watt-hour meters.
Available for class 2 and 3 per reactive energy IEC62053-23
Accuracy class 0.5 and 0.2 as per ANSI C12.20 and
IEC 62053-22 for AC transformers.
AC capability 20, 200, 320, 400 and 640 Amperes.
Epoxy or tape wrapped coil protection
DCR ( )1
FREC.(Hz) NOM . Rb (ohms)
T50111 35.0 Min. 50 1:1500 46 20 30.0
T75012 238.0 ±30% 50 1:2000 114 50 30.0
T14049 60.0 Min. 120 1:2000 25 200 27.2
T16013 55.0 Min. 120 1:2000 22 320 7.2
T17004 200.0 Min. 60 1:4000 66 640 7.2
Irms max
(A)
FALCO PART NUMBER Turns RatioL(H) Tol.
T50111 1 0.680 / 17.27 0.800 / 20.32 0.174 / 4.42 0.400 / 10.16 5.40 / 137.16 0.118 / 3.0
T75012 2 1.004 / 25.5 0.994 / 25.25 0.240 / 6.1 0.532 / 13.5 0.138 / 3.5 ----
T14049 3 1.680 / 42.67 1.680 / 42.67 0.480 / 12.19 0.730 / 18.54 7.00 / 177.8 ----
T16013 4 1.891 / 48.03 2.375 / 60.33 0.750 / 19.05 0.710 / 18.04 7.25 / 184.15 ----
T17004 5 1.880 / 47.75 2.000 / 50.8 1.000 / 25.40 0.600 / 15.24 7.000 / 177.80 0.393 / 10.0
FALCO PART NUMBER A max.
in / mm
B max.
in / mm
F nom.
in / mm
Cmin.
in / mm
D max.
in / mm
E nom.
in / mm
FIG.
1. L & DCR tested at Ta= 25°C
2. Turns tolerance is ± 1.0 % typ
3. Operating Temperature Range: -40°C to +85°C
Current Transformers for Electronic Watt-Hour Meters
POWER MAGNETICS
Toroidal Series
A
B
C
D
FINISH(BLACK)
START
FINISH
START(WHITE)
Front View Right View
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CTWH_AC.PDF REV: C1 05/2012
FIGURE 1
A
B
C
E
F
Front View
Bottom View
1
23
4
D
1
E
C
A
B
D
Front View Right View
E
C
A
B
D
Front View Right View
E
B
F
C
D
Front View Right View
FIGURE 2
FIGURE 5FIGURE 4FIGURE 3
4
E
A
FINISH(BLACK)
START
FINISH
START
PIN 1: START
PIN 2: FINISH
START(BLUE)
FINISH(WHITE)
START
FINISH
FINISH(WHITE)
START(BLUE)
FINISH(WHITE)
START(BLUE)
FINISH(WHITE)
FINISH(WHITE)
START(BLUE)
START
FINISH
START
FINISH
AC