LATCHING, SEQUENCE
AND STEPPER RELAYS
5 TO 30 AMPERES
SECTION 5
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
711
755/250ML
285/388ML
303
B255
385
311
L
L X
X
W
W X
X H
H (INCHES)
PAGE 5 PAGE 8, 9
PR
PRODUCT
ODUCT
FEA
FEATURES
TURES
MA
MATING SOCKETS
TING SOCKETS
SEE SECTION 7
A
AGENC
GENCY
Y APPR
APPRO
OV
VALS
ALS
P
PA
AGE NUMBER
GE NUMBER
COIL
COIL
Standard Voltage AC:
DC:
Coil Power AC (60 Hz):
Coil Power DC:
Insulation System Per UL Standard 1446:
CONT
CONTA
ACTS
CTS
Contact Configuration:
Contact Material:
Contact Resistance (Initial):
Contact Rating AC Amperes (AC1):
Contact Rating AC Voltage:
Contact Rating DC Amperes (DC1):
Contact Rating DC Voltage:
Horse Power (AC):
Horse Power (AC):
TIMING
Operate Time:
Release Time:
DIELECTRIC S
DIELECTRIC STRENGTH
TRENGTH
Coil to Contacts:
Insulation Resistance:
TEMPER
TEMPERA
ATURE
TURE
Operating, AC Lower:
Operating, AC Upper:
Operating, DC Lower:
Operating, DC Upper:
Storage, Lower:
Storage, Upper:
LIFE EXPECT
LIFE EXPECTANC
ANCY
Y
Electrical @ Rated Load (AC1):
Mechanical @ no Load :
MISCELLANEOUS
Cover Protection Category:
Weight:
UNITS
UNITS
50/60 Hz
VA
W
m Ohms
A
V
A
V
Hp
Hp
ms
ms
V rms
megohms
minimum@VDC
ºC
ºC
ºC
ºC
ºC
ºC
operations
operations
IP
grams
PERMANENT MAGNETIC
LATCHING RELAY
3-WAY TERMINALS,
SOLDER, PLUG-IN OR
0.187 QUICK CONNECT DUAL
COIL LATCHING
SELF-MAINTAINING SET
AND RESET COILS
MAINTAINS LAST
POSITION WITHOUT POWER
AC OR DC COILS
OPTIONAL SILVER TIN
OXIDE CONTACTS
12, 24, 110 / 120, 220 / 240
12, 24
2.1
1. 9
Class B (130ºC)
PDT SPDT-DM-DB
Silver alloy, gold flashed
50
10
240
10
28
1/3 @ 120 V
1/2 @ 240 V
30
30
2500
100 @ 5 VDC or 0.5 W
-40
+70
-40
+75
-45
+105
100,000
10,000,000
40
87
755 / 250ML
MAGNETIC LATCHING RELAYS
285 / 388ML
2.89 x 1.37 x 1.94 1.90 x 1.53 x 1.40
PERMANENT MAGNETIC
LATCHING RELAY
11 PIN OCTAL SOCKET
DUAL COIL LATCHING
SELF-MAINTAINING SET
AND RESET COILS
MAINTAINS LAST POSITION
WITHOUT POWER
AC OR DC COILS OPTIONAL
BLOWOUT MAGNET
OPTIONAL SILVER TIN
OXIDE CONTACTS
12, 24, 110 / 120, 240
6, 12 , 24, 48, 110 / 125
2.0
1.64
Class B (130ºC)
DPDT
Silver alloy, gold flashed
50
16
240
16
28
1/3 @ 120 V
1/2 @ 240 V
30
30
2500
100 @ 5 VDC or 0.5 W
-30
+70
-30
+75
-30
+105
100,000
10,000,000
40
170
PAGE 6, 7
C US C US
UL Recognized
File No. E43641
UL Recognized
File No. E43641
70-750D8-1, 70-750D11-1,70-464-1,
70-465-1, 70-169-1, 70-170-1,
70-463-1, 70-124-1, 70-124-2,
70-178-1, 70-178-2,
5...2
9/04
70-463-1
2.90 x 1.54 x 1.40
IMPULSE SEQUENCING
RELAY
3 - WAY TERMINALS,
SOLDER, PLUG-IN, OR
0.187 QUICK CONNECT,
HOLDS LAST SET
POSITION WITH
NO POWER REQUIRED
12, 24, 110 / 120
12 , 24, 48, 110 / 125
1. 8
1. 8
Class B (130ºC)
DPDT
Silver alloy, gold flashed
50
12
240
12
28
1/3 @120
1/2 @ 240
35
35
1500
100 @ 5 VDC or 0.5 W
- 40
+70
- 40
+70
- 45
+105
100,000
10,000,000
40
110
711
C US
PENDING
PAGE 10, 11 PAGE 14, 15
278390D
PAGE 12, 13
-
2 COIL MECHANICAL
LATCHING RELAY
3 POLES PER COIL
AC & DC COILS
0.187 QUICK CONNECT
OR SOLDER
DIN OR PANEL MOUNT BOTH
COIL MAY BE ENERGIZED
AT THE SAME TIME
UP TO 6PDT
3 POLES PER COIL
6, 12, 24, 110 / 120, 220 / 240
6, 12 , 24, 48, 110 / 125
2.0
2.6
Class B (130ºC), Class F (155ºC)
DPDT, 4PDT & 6PDT
SIlver alloy, gold flashed
50
15/3
277/ 600
10
28
1/3 @120
1/2 @ 208 to 600
25
25
2000
100 @ 5 VDC or 0.5 W
-40
+70
-40
+70
-40
+105
100,000
10,000,000
40
85
3.04 x 1.67 x 2.392
2 COIL MECHANICAL
LATCHING RELAY
SINGLE LEVEL
SOCKET WIRING
CONTINUOUS DUTY COILS
BOTH COILS MAY BE
ENERGIZED AT SAME TIME
OPTIONAL BLOWOUT MAGNET
OPTIONAL BIFURCATED
CONTACT
UP TO 4PST OR 3PDT
6, 12, 24, 110 / 120, 220 / 240
6, 12 , 24, 48, 110 / 125
5.0
2.0
Class B (130ºC)
UP TO 4PST OR 3PDT
Silver alloy, gold flashed
50
10
120
10
24
None
None
25
20
1500
100 @ 5 VDC or 0.5 W
-10
+60
-10
+60
-40
+105
100,000
10,000,000
50
215
2.63 x 1.47 x 4.56
SEQUENCE (STEPPING)
RELAY
SINGLE COIL
CONTINUOUS DUTY
CONTACT TRANSFER
MINERALIZING OR
INDUSTRIAL PLUG-IN
CONSTRUCTION
6, 12, 24, 110 / 120, 220 / 240
6, 12 , 24, 48, 110 / 125
5.0
2.0
Class B (130ºC)
DPDT
Silver alloy,
50
5
120
5
30
None
None
35
35
1500
100 @ 5 VDC or 0.5 W
-10
+60
-10
+60
-40
+105
100,000
10,000,000
50
190
2.65 x 1.47 x 4.56
385
B255 311
C US
UL Recognized
File No. E13224
C US
PENDING
C US
UL Recognized
File No. E7104
278390D
PAGE 16, 17
MECHANICAL LATCHING RELAYS
5...3
9/04
PERMANENT MAGNETIC
LATCHING RELAY
0.25 TERMINALS, SOLDER,
OR QUICK CONNECT OPTIONAL
OPTIONAL CLASS F INSULATION
DUAL COIL LATCHING
SELF-MAINTAINING SET AND
RESET COILS MAINTAINS LAST
POSITION WITHOUT POWER
AC OR DC COILS OPTIONAL
BLOWOUT MAGNET
OPTIONAL STUD, FLANGE
OR DIN MOUNT
110 / 120
12, 24
2.1
1. 9
Class B (130ºC), Class F (155ºC)
DPDT
Silver alloy, gold flashed
50
30
277
30
28
1/3 @ 120 V
1/2 @ 208 V to 600 V
30
30
4000
100 @ 5 VDC or 0.5 W
-40
+60
-40
+65
-40
+105
100,000
10,000,000
40
170
303
2.90 x 1.53 x 1.40
C US
UL Recognized
File No. E13224
-
APPLICA
APPLICATION D
TION DA
AT
TA
A
LATCHING, SEQUENCE,
STEPPER AND IMPULSE RELAYS
Latching relays are often confused with sequence,
or stepper, and impulse relays. These are in fact
three distinctly different types of devices, although
in many cases one might be used to mimic the
function of another.
LATCHING RELAYS
Latching relays require one pulse of coil power to move
their contacts in one direction, and another, separate
one to move them back. Repeated pulses from the
same input have no effect. Latching relays are useful
in applications where power must be conserved since
they require none to maintain their last position, or
where it is desirable to have a relay that stays where
it was during an interruption of power. They are most
often divided into two sub- categories, magnetic latch
and mechanical latch.
Magnetic latch relays employ either a permanent or
remanent magnet to hold their last set Position.
The permanent magnet type has the advantage,
in that it will not lose its memory no matter how
long it is left in one position, while the remanent
type if left latched will eventually lose its magnetic
charge and drop out. It will also operate backwards if
the reset side is subjected to excessive voltage, while
the permanent magnet types will tolerate extreme
overvoltage to either input without malfunction or
damage. The rest of this discussion will address
only permanent magnet types.
Permanent magnet latch relays can have either single
or dual coils. They will operate in one direction when
power is applied with one polarity, and will reset when
polarity is reversed on the single coil types, or when
properly polarized voltage is applied to the reset coil
of a dual version. Most dual coil types can also be
used as single coil versions if necessary or desirable.
Nearly all AC controlled magnetic latch relays have
single coils that employ steering diodes to differentiate
between operate and reset commands.
Mechanical latching relays use a catch device to hold
their contacts in their last set Position until commanded
to change state, usually by means of energizing a
second coil. These types are often constructed in such
a manner that when the operate coil is energized the
contacts will go to the operated position regardless of
whether the reset coil is energized or not. They will
stay in that position only if the reset coil is not energized
when power is removed from the operate side. This
 operate coil dominant operation can be especially
useful in certain applications where it is desirable to
have the relay function as a non-latching type unless
an event has occurred, at which time the reset coil is
de-energized. Packaging machinery that places several
units into a single container would be a good example.
SEQUENCE RELAYS
Sequence or stepper relays change the state of their contacts
upon successive pulses of power to a single coil. Most employ
some form of ratchet and cam assembly that requires several
pulses to make one revolution of the cams. Many, but not all,
have their cams arranged so that each contact transfers with
each pulse. That is, if a contact is open it will close, if closed
it will open. By utilizing two sets of double-throw contacts,
these devices can perform a number of useful functions.
They are most commonly used to equalize wear on two devices
that are used to perform a single function. As each command
for a device to operate is received, the one that did not operate
last is energized. One of the most common uses of this
function is sewage lift stations where two pumps sit side
by side with only one operating at a time in normal service.
Sequence relays can also be used to perform other repetitive
functions by altering the arrangement or number of lobes on
their cams. For example, a sequence could be set up
controlling two loads with successive pulses where one would
come on, then the other, then both , then both would go off.
Literally any such sequence is possible that has a number of
steps that will divide evenly into the number of pulses required
to rotate the cam one full turn.
OPEN CONTACT
CAM 1
CLOSED CONTACT
CAM 2
FIGURE 1
IMPULSE RELAYS
Impulse relays are a form of sequence relay that will only
perform the first function described earlier, each contact
transfers on each pulse. In many cases the terms
sequence and impulse can be used interchangeably,
but not all.
Many impulse relays are made up of a magnetic latch relay
and a solid state steering circuit that, upon application of
power, determines which position the relay is in and
energizes the opposite coil. The contacts transfer and hold
that position when power is removed. When reenergized
the contacts transfer again and hold that position, and so on.
Impulse relays can be used as wear equalizers. They are
also well suited for applications such as turning a single
device on or off from one or more locations with a single
momentary switch or push button at each station. For example,
a conveyor could be started and/or stopped from multiple
locations by means of a single button at each position.
5...4
9/04
WIRING DIAGRAM
(VIEWED FROM PIN END)
DPDT, 12 AMPS
1 2 3
4 5 6
7 8 9
+A B-
INPUT SIGNAL
711 IMPULSE SEQUENCING RELAY
C US
TYPE 711 IS AN ALTERNATING RELAY USED
FOR LOAD SHARING OR TOGGLING ON / OFF OF
ONE LOAD. EACH MOMENTARY PULSE,
OR RE - APPLICATION OF INPUT VOLTAGE TOGGLES RELAY
CONTACT. ONCE TRANSFERRED RELAY POSITION IS
MAINTAINED INDEFINITELY BY INTERNAL MAGNETS.
UL Recognized
File No. E13224
FEATURES BENEFITS
ELECTRONIC STEERING CIRCUIT
PERMANENT MAGNETIC LATCH
INDUSTRY STANDARD
BLADE BASE
LED INDICATORS
TOGGLES LOADS ON/OFF (LOAD SHARING)
HOLDS LAST POSITION INDEFINITELY
DIRECTLY REPLACES OTHER
MANUFACTURES
VISUALLY INDICATES STEERING DIRECTION
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
COIL
COIL
Pull-in Voltage AC (50/60 Hz):<
Pull-in Voltage DC:<
Dropout Voltage AC (50/60 Hz):>
Dropout Voltage DC:>
Maximum Voltage:
Resistance Tolerance:
Coil Power AC (50/60 Hz):
Coil Power DC:
Insulation System Per UL Standard 1446:
Duty:
CONT
CONTA
ACTS
CTS
Contact Material:
Contact Rating AC Amperes (AC1):
Contact Rating AC Voltage:
Contact Rating DC Amperes (DC1):
Contact Rating DC Voltage:
Horse Power (AC):
Horse Power (AC):
Pilot Duty (60 Hz):
Minimum Recommended Load:
TIMING
Operate Time:
Release Time:
DIELECTRIC S
DIELECTRIC STRENGTH
TRENGTH
Coil to Contacts:
Across Open Contacts:
Pole to Pole:
Insulation Resistance:
TEMPER
TEMPERA
ATURE
TURE
Operating, AC Lower:
Operating, AC Upper:
Operating, DC Lower:
Operating, DC Upper:
Storage, Lower:
Storage, Upper:
LIFE EXPECT
LIFE EXPECTANC
ANCY
Y
Electrical @ Rated Load (AC1):
Mechanical @ no Load :
MISCELLANEOUS
Operating Position:
Insulation Material:
Enclosure Material:
Cover Protection Category:
Weight:
UNITS
UNITS
% of nominal
% of nominal
% of nominal
% of nominal
% of nominal
% ±
VA
W
A
V
A
V
HP
HP
ma
ms
ms
V rms
V rms
V rms
megohms
minimum @VDC
ºC
ºC
ºC
ºC
ºC
ºC
operations
operations
IP
grams
85
85
Not applicable
Not applicable
110
10
1. 8
1. 8
Class B (130ºC)
Intermittent
Silver alloy,
gold flashed
12
240
12
28
1/3 @ 120
1/2 @ 240
Not applicable
100 @ 5 VDC
or 0.5 W
35
35
1500
500
1500
1000 @ 500
-45
+70
-45
+70
-45
+105
100,000
10,000,000
Any
Molded plastic
Clear Polycarbonate
40
110
GENER
GENERAL SPECIFIC
AL SPECIFICA
ATIONS (@
TIONS (@ 25
25ºC
ºC)
)
5...5
9/04
QUICK CONNECT/
SOLDER
TERMINALS
2.87
(72.8) 0.26 TYP.
(6.60)
2.0
(50.8)
L.E.D
TOP OR SIDE MOUNT SLOTS
FOR BRACKET ADAPTERS
1.54 MAX.
(39.11)
1.40 MAX.
(35.56)
1 2
3
4 5
6
STANDARD
PART NUMBERS
NOMINAL
INPUT VOLTAGE
AC OPERATED, 12 AMP
DC OPERATED, 12 AMP
24 VAC
120 VAC
12 VDC
24 VDC
110 VDC
711XBXCL-24A
711XBXCL-120A
711XBXCL-12D
711XBXCL-24D
711XBXCL-110D
Mating Socket
70-463-1
See section 7
DIN ADAPTER
16-711C4
FLANGE ADAPTER
16-711C1
TOP OR SIDE MOUNT
BRACKET ADAPTERS
ORDERED AND
SHIPPED SEPARATELY
OUTLINE DIMENSIONS
DIMENSIONS SHOWN IN INCHES & (MILLIMETERS)
.
(12) (32) (22)
(14) (34) (24)
(11) (31) (21)
(A1) (A2)
ALTERNATE NEMA
OR IEC ( ) NUMBERS
VIEWED FROM
PIN SIDE
0.187 x 0.020
(4.74 x 0.508)
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
755/250ML OCTAL BASE MAGNETIC LATCHING RELAY
C US
UL Recognized
File No. E43641
FEATURES BENEFITS
MAGNETIC LATCHING RELAY WITH 11 PIN
OCTAL BASE. OPERATES BY PULSED
INPUT. PERMANENT MAGNET MAINTAINS
LAST POSITION.
11 PIN OCTAL BASE:
16 AMP CONTACT RATING:
PERMANENT MAGNET
LATCHING MECHANISM:
EASILY INSTALLED IN EXISTING OR
READILY AVAILABLE SOCKETS
ACCOMMODATES MOST
CONTROL CIRCUIT LOADS
STAYS IN LAST SET POSITION INDEFINITELY
WITH NO EXTERNAL POWER REQUIRED
COIL
COIL
Pull-in Voltage AC (50/60 Hz):<
Pull-in Voltage DC:<
Dropout Voltage AC (50/60 Hz):>
Dropout Voltage DC:>
Maximum Voltage:
Resistance Tolerance:
Coil Power AC (50/60 Hz):
Coil Power DC:
Insulation System Per UL Standard 1446:
Duty:
CONT
CONTA
ACTS
CTS
Contact Material:
Contact Rating AC Amperes (AC1):
Contact Rating AC Voltage:
Contact Rating DC Amperes (DC1):
Contact Rating DC Voltage:
Horse Power (AC):
Horse Power (AC):
Pilot Duty (60 Hz):
Minimum Recommended Load:
TIMING
Operate Time:
Release Time:
DIELECTRIC S
DIELECTRIC STRENGTH
TRENGTH
Coil to Contacts:
Across Open Contacts:
Pole to Pole:
Contacts to Frame:
Insulation Resistance:
TEMPER
TEMPERA
ATURE
TURE
Operating, AC Lower:
Operating, AC Upper:
Operating, DC Lower:
Operating, DC Upper:
Storage, Lower:
Storage, Upper:
LIFE EXPECT
LIFE EXPECTANC
ANCY
Y
Electrical @ Rated Load (AC1):
Mechanical @ no Load :
MISCELLANEOUS
Operating Position:
Insulation Material:
Enclosure Material:
Cover Protection Category:
Weight:
85
80
Not applicable
Not applicable
500
10
2
1.64
Class B (130ºC)
Single coil Continuous
Dual coil intermittent
Silver alloy,
gold flashed
16
240
16
28
1/3 @ 120 V
1/2 @ 240 V
Not applicable
100 @ 5 VDC
or 0.5 W
30
30
2500
1500
2500
Not applicable
1000 @ 500
-30
+70
-30
+75
-30
+105
100,000
10,000,000
Any
Molded plastic
Clear Polycarbonate
40
170
UNITS
UNITS
% of nominal
% of nominal
% of nominal
% of nominal
% of nominal
% ±
VA
W
A
V
A
V
HP
HP
ma
ms
ms
V rms
V rms
V rms
V rms
megohms
minimum @VDC
ºC
ºC
ºC
ºC
ºC
ºC
operations
operations
IP
grams
GENER
GENERAL SPECIFIC
AL SPECIFICA
ATIONS (@
TIONS (@ 25
25
ºC
ºC
)
)
5...6
9/04
DPDT, 16 AMPS WIRING DIAGRAM
(VIEWED FROM PIN END)
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
755/250ML OCTAL BASE MAGNETIC LATCHING RELAY
Mating Sockets
70-750D8-1, 70-750D11-1,
70-464-1, 70-465-1: SCREW/DIN
70-169-1, 70-170-1: SCREW/PANEL
See section 7
24 VAC
120 VAC
240 VAC
12 VDC
24 VDC
110 VDC
740 W
10,000 W
36,00 W
88/88 W
350/350 W
9000/9000 W
W250AML2CPX-8
W250AML2CPX-9
W250AML2CPX-10
W250ML2CPX-6
W250ML2CPX-7
W250ML2CPX-8
19.2 VAC
96 VAC
192 VAC
8.4 VDC
16.7 VDC
77 VDC
OPERATE
VOLTAGE
MIN.
NOMINAL
INPUT
VOLTAGE
STANDARD
PART NUMBERS NOMINAL
RESISTANCE
(OHMS)
AC OPERATED SINGLE COIL, 16 AMP
DC OPERATED DUAL COIL, 16 AMP
RETROFITS IDEC RR2KP-U, SEE END OF SECTION 5 FOR CROSS REFERENCE
OUTLINE DIMENSIONS
DIMENSIONS SHOWN IN INCHES & (MILLIMETERS)
.
NEW PART NUMBER SUPERCEDES
755XBXC-24A
755XBXC-120A
755XBXC-240A
755XBXCD-12D
755XBXCD-24D
755XBXCD-110D
1.355
(34.42)
1.375
(34.925)
2.33 MAX.
(57.2)
755 XBX C
-120A
CLASS:
CONTACT CONFIGURATION:
DPDT: XBX
OPTIONS:
MAGNETIC BLOWOUT: CODE 69
SILVER TIN CONTACTS: CODE 36
PLAIN COVER:
CODE C
DUAL COIL:
CODE D (DC ONLY)
SINGLE COIL:
NO CODE
COIL VOLTAGE:
6, 12, 24, 120, 220/230, 240 ADD A FOR AC COILS
6, 12, 24, 48, 110 ADD D FOR DC COILS
ORDERING CODE
ORDERING CODE
ALTERNATE NEMA
OR IEC ( ) NUMBERS
VIEWED FROM
PIN SIDE
(34)
(32)
(31)
(A1) (A2)
(14)
(11)
(24)
(12)
(21)
(22)
AC OPERATE
RESET
COM
(+)
(-)
(-) (+)
DC OPERATE
RESET
4
56
10
11
1
2
3
8
7
9
(34)
(32)
(31)
(A1) (A2)
(14)
(11)
(24)
(12)
(21)
(22)
4
56
10
11
1
2
3
8
7
9
COIL MEASURED @ 25 ºC
5...7
9/04
8 PIN OCTAL BASE
NOT SHOWN
111
10
9
8
2
3
4
567
2.81MAX
(71.4)
285/388ML SQUARE BASE MAGNETIC LATCHING RELAY
FEATURES BENEFITS
C US
UL Recognized
File No. E43641
Recognized Component
mark for Canada and the
United States.
11 PIN BLADE TERMINAL
SQUARE BASE:
CONSERVATIVE 10 AMP
CONTACT RATING:
MAGNETIC LATCHING RELAY
WITH SQUARE BASE.
OPERATES BY PULSED INPUT.
PERMANENT MAGNET MAINTAINS
LAST POSITION.
COMPLIES WITH REQUIREMENTS OF
IEC STANDARDS 947-4-1 AND
947-5-1 LOW VOLTAGE DIRECTIVE
IEC = INTERNATIONAL
ELECTROTECHNICAL COMMISSION
CE TESTING AND EVALUATION
PERFORMED BY THE UNDERWRITERS
LABORATORIES AS A THIRD PARTY
PARTICIPANT
*
*
*
3 AMP 600 VAC
CONTACT RATING:
ACCEPTS STANDARD 0.187 QUICK CONNECT
TERMINALS AS WELL AS EXISTING
READILY AVAILABLE SOCKETS
WILL TOLERATE SIGNIFICANT ACCIDENTAL
OVERLOADS WITHOUT PREMATURE FAILURE
ACCOMMODATES NEARLY ALL
CONTROL CIRCUIT VOLTAGES
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
COIL
COIL
Pull-in Voltage AC (50/60 Hz):<
Pull-in Voltage DC:<
Dropout Voltage AC (50/60 Hz):>
Dropout Voltage DC:>
Maximum Voltage:
Resistance Tolerance:
Coil Power AC (50/60 Hz):
Coil Power DC:
Insulation System Per UL Standard 1446:
Duty:
CONT
CONTA
ACTS
CTS
Contact Material:
Contact Rating AC Amperes (AC1):
Contact Rating AC Voltage:
Contact Rating DC Amperes (DC1):
Contact Rating DC Voltage:
Horse Power (AC):
Horse Power (AC):
Pilot Duty (60 Hz):
Minimum Recommended Load:
TIMING
Operate Time:
Release Time:
DIELECTRIC S
DIELECTRIC STRENGTH
TRENGTH
Coil to Contacts:
Across Open Contacts:
Pole to Pole:
Contacts to Frame:
Insulation Resistance:
TEMPER
TEMPERA
ATURE
TURE
Operating, AC Lower:
Operating, AC Upper:
Operating, DC Lower:
Operating, DC Upper:
Storage, Lower:
Storage, Upper:
LIFE EXPECT
LIFE EXPECTANC
ANCY
Y
Electrical @ Rated Load (AC1):
Mechanical @ no Load :
MISCELLANEOUS
Operating Position:
Insulation Material:
Enclosure Material:
Cover Protection Category:
Weight:
85
80
Not applicable
Not applicable
500
10
2.1
1. 9
Class B (130ºC)
Single coil Continuous
Dual coil intermittent
Silver alloy,
gold flashed
10
240
10
28
1/3 @ 120 V
1/2 @ 240 V
Not applicable
100 @ 5 VDC
or 0.5 W
30
30
2500
1500
2500
Not applicable
1000 @ 500
-40
+70
-40
+75
-45
+105
100,000
10,000,000
Any
Molded plastic
Clear Polycarbonate
40
87
UNITS
UNITS
% of nominal
% of nominal
% of nominal
% of nominal
% of nominal
% ±
VA
W
A
V
A
V
HP
HP
ma
ms
ms
V rms
V rms
V rms
V rms
megohms
minimum @VDC
ºC
ºC
ºC
ºC
ºC
ºC
operations
operations
IP
grams
GENER
GENERAL SPECIFIC
AL SPECIFICA
ATIONS (@
TIONS (@ 25
25
ºC
ºC
)
)
5...8
9/04
NOMINAL
INPUT
VOLTAGE
NOMINAL
RESISTANCE
(OHMS)
WIRING DIAGRAM
(VIEWED FROM PIN END)
285/388ML SQUARE BASE MAGNETIC LATCHING RELAY
DPDT, 10 AMPS
Mating Sockets
70-463-1: SCREW/DIN, 70-124-1: SOLDER
70-178-1, 70-178-2: PRINTED CIRCUIT
70-124-2: QUICK CONNECT
See section 7
120 VAC
12 VDC
24 VDC
12 VDC
24 VDC
10,000 W
120 W
470 W
88/88 W
350/350 W
OUTLINE DIMENSIONS
DIMENSIONS SHOWN IN INCHES & (MILLIMETERS).
DC OPERATED, DUAL COIL, 10 AMP
DC OPERATED, SINGLE COIL, 10 AMP
AC OPERATED, SINGLE COIL, 10 AMP
EQUIVALENT
PART
NUMBERS
285XBXC-120A
285XBXC-12D
285XBXC-24D
285XBXCD-12D
285XBXCD-24D
STANDARD
PART
NUMBERS
W388AMLCPX-9
W388MLCPX-6
W388MLCPX-7
W388ML2CPX-6
W388ML2CPX-7
RESET
DUAL COIL (DC)
6
7
4
3
1
9
8+
B
A
5
OPERATE
6
7
4
3
1
9
8
B
A
RESET
OPERATE
COMMON
SINGLE COIL (AC)
OPERATE
6
7
4
3
1
9
B
ARESET
SINGLE COIL (DC)
QUICK CONNECT/SOLDER /
PLUG-IN TERMINALS
1.53 MAX.
(38.8)
1.53 MAX.
(38.8)
1.90 MAX.
(48.4)
1
B
9
3
6
7
4
A
8
5
1.40 MAX.
(35.5)
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
285 XBX C
-120A
CLASS:
CONTACT CONFIGURATION:
DPDT: XBX
PLAIN COVER:
CODE C
COIL VOLTAGE:
6, 12, 24, 120, 220/230, 240 ADD A FOR AC COILS
6, 12, 24, 48, 110 ADD D FOR DC COILS
ORDERING CODE
ORDERING CODE
COIL MEASURED @ 25 ºC
5...9
9/04
(12) (22)
(14) (24)
(11) (21)
(A1) (A2)
(12) (22)
(14) (24)
(11) (31) (21)
(A1) (A2)
(12) (22)
(14) (34) (24)
(11) (31) (21)
(A1) (A2)
ALTERNATE NEMA
OR IEC ( ) NUMBERS
VIEWED FROM
PIN SIDE
UL Recognized
File No. E13224
C US
FEATURES BENEFITS
303 SQUARE BASE POWER MAGNETIC LATCHING RELAYS
THE CLASS 303 RELAY HAS BEEN DESIGNED
FOR INSTALLATION OF FULLY INSULATED
0.250 QUICK CONNECT TERMINALS.
CONTACT GAPS ARE 2 MILLIMETERS WIDE
TO MEET MOST STANDARDS FOR CREEPAGE
AND CLEARANCE. THE OPTIONAL MAGNETIC
BLOWOUT ALLOWS FOR HIGH VOLTAGE DC
SWITCHING APPLICATIONS. ITS LATCH
MECHANISM KEEPS IT IN ITS LAST SET
POSITION UNTIL COMMANDED TO CHANGE
BY MEANS OF A SEPARATE SIGNAL.
WIDE SELECTION OF COVER
STYLES AND OPTIONS:
SIMPLE INSTALLATION, WILL ACCEPT FULLY
INSULATED (BOOTED) TERMINALS
MEETS NEARLY ALL INTERNATIONAL
REQUIREMENTS FOR SPACING
HANDLES CONTACTOR LOADS
IN A CONTROL RELAY PACKAGE.
CAN BE CUSTOMIZED AS NEEDED
WITHOUT EXCESSIVE COST OR MINIMUMS
0.250 QUICK CONNECT/
SOLDER TERMINALS:
2 MM CONTACT GAPS:
COMPACT DESIGN:
MAGNETIC LATCHING RELAY WITH SQUARE BASE. OPERATES
BY PULSED INPUT AND MAINTAINS LAST POSITION.
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
GENER
GENERAL SPECIFIC
AL SPECIFICA
ATIONS (@
TIONS (@ 25
25
º
C)
C)
COIL
COIL
Pull-in Voltage AC (50/60 Hz):<
Pull-in Voltage DC:<
Dropout Voltage AC (50/60 Hz):>
Dropout Voltage DC:>
Maximum Voltage:
Resistance Tolerance:
Coil Power AC (50/60 Hz):
Coil Power DC:
Insulation System Per UL Standard 1446:
Duty:
CONT
CONTA
ACTS
CTS
Contact Material:
Contact Rating AC Amperes (AC1):
Contact Rating AC Voltage:
Contact Rating DC Amperes (DC1):
Contact Rating DC Voltage:
Horse Power (AC):
Horse Power (AC):
Pilot Duty (60 Hz):
Minimum Recommended Load:
TIMING
Operate Time:
Release Time:
DIELECTRIC S
DIELECTRIC STRENGTH
TRENGTH
Coil to Contacts:
Across Open Contacts:
Pole to Pole:
Contacts to Frame:
Insulation Resistance:
TEMPER
TEMPERA
ATURE
TURE
Operating, AC Lower:
Operating, AC Upper:
Operating, DC Lower:
Operating, DC Upper:
Storage, Lower:
Storage, Upper:
LIFE EXPECT
LIFE EXPECTANC
ANCY
Y
Electrical @ Rated Load (AC1):
Mechanical @ no Load :
MISCELLANEOUS
Operating Position:
Insulation Material:
Enclosure Material:
Cover Protection Category:
Weight:
85
80
Not applicable
Not applicable
500
10
2
1.64
Class B (130ºC)
Class F (155ºC)
Continuous
Silver alloy, gold flashed
30
277
30
28
1/3 @ 120 V
1/2 @ 208 V to 600 V
Not applicable
100 @ 5 VDC
or 0.5 W
30
30
4000
1000
2200
Not applicable
1000 @ 500
-40
+60
-40
+65
-40
+105
100,000
10,000,000
Any
Molded plastic
Clear Polycarbonate
40
170
UNITS
UNITS
% of nominal
% of nominal
% of nominal
% of nominal
% of nominal
% ±
VA
W
A
V
A
V
HP
HP
ma
ms
ms
V rms
V rms
V rms
V rms
megohms
minimum @VDC
ºC
ºC
ºC
ºC
ºC
ºC
operations
operations
IP
grams
5...10
9/04
WIRING DIAGRAM
(VIEWED FROM PIN END)
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
OUTLINE DIMENSIONS
DIMENSIONS SHOWN IN INCHES & (MILLIMETERS)
.
ORDERING CODE
ORDERING CODE
RETROFITS POTTER & BRUMFIELD KUB
SEE END OF SECTION 5 FOR CROSS REFERENCE
STANDARD
PART NUMBERS
CONTACT
CONFIGU-
RATION
NOMINAL
INPUT
VOLTAGE
NOMINAL
RESISTANCE
(OHMS)
DPDT, 30 AMPS
303 SQUARE BASE POWER MAGNETIC LATCHING RELAYS
ENCLOSED STYLE
CHOICE OF 6 -32 STUD
OR TAPPED CORE WITH
ANTI ROTATION TAB.
0.296
(7.51)
1.40 MAX.
(35.5)
1.53 MAX.
(38.8)
1
B
A
6
2
4
5
3
ENCLOSED DIN
MOUNT COVER
2.0 MAX.
(51.0)
DIN RAIL
LOCKING CLIP
PRINTED CIRCUIT
TERMINALS
2.50 MAX.
(63.51)
2.90 MAX.
(73.8)
1.53 MAX.
(38.8)
1.90 MAX.
(48.4)
ENCLOSED
FLANGE MOUNT QUICK CONNECT/SOLDER
TERMINALS 0.875
(22.22) 0.100 DIA.
(2.54)
0.285
(7.23)
0.265
(6.73)
0.295
(7.94)
120 VAC
120 VAC
24 VDC
24 VDC
24 VDC
12 VDC
303BXXC3-120A
303XBXC1-120A
303XBXC1-24D
303XBXC4-24D
303XBX69C-24D
303XHXC1D-12D
6300 W
6300 W
300 W
300 W
300 W
70/70 W
DPST-N.O
DPDT
DPDT
DPDT
DPDT
SPDT-N.C.-N.O.
(DB-DM)
F 303 XBX C1 L
-240A
COILS:
130ºC: NO CODE, 155ºC: CODE F
CLASS:
303 - 30 AMPS RATING WITH
0.25 QUICK CONNECT/SOLDER
TERMINALS
CONTACT ARRANGEMENTS:
XBX: DPDT, BXX: DPST-N.O.
XHX: SPDT - DM -DB, XXB: DPST-N.C.
CONSTRUCTION STYLE:
*ENCLOSED, PLAIN COVER: CODE C
ENCLOSED, SIDE FLANGE MOUNT: CODE C1
ENCLOSED, 6-32 TAPPED CORE & ANTI-ROTATION TAB:
CODE CS2
ENCLOSED, 6-32 STUD & ANTI-ROTATION TAB: CODE CS2
ENCLOSED, TOP FLANGE MOUNT: CODE C3
ENCLOSED, DIN MOUNT: CODE C4
TERMINALS STYLE:
SOLDER/QUICK CONNECT TERMINALS: NO CODE
*PRINTED CIRCUITS TERMINALS: CODE T
OPTIONS:
L.E.D. STATUS LAMP: CODE L (NOT AVAILABLE W/CODE 4)
MAGNET BLOWOUT: CODE 69
**DUAL COIL: CODE D
COIL VOLTAGE:
6, 12, 24, 120, 240 ADD A FOR AC COILS
6, 12, 24, 48, 110-125 ADD D FOR DC COILS
* Note: Code C Recommended To Be Used With Printed Circuit Terminals
** Note: Dual Coil Not Available On Xbx Contact Arrangement
AC OPERATED, SINGLE COIL, 30 AMP
DC OPERATED, DUAL COIL, 30 AMP
1
6
2
34
5
OPERATE
RESET
AB
BXX DPST - N.O.
(AC SINGLE COIL)
XBX DPDT
(SINGLE COIL)
XBX DPDT
(AC SINGLE COIL)
XHX SPDT - N.C. - N.O.
(DB - DM), (DUAL COIL)
OPERATE
RESET
1
6
2
34
5
-A +B
+-
1
6
2
34
5
OPERATE
RESET
+A -B
1
6
2
34
5
OPERATE
RESET
A B
DC OPERATED, SINGLE COIL, 30 AMP
COIL MEASURED
@
25
º
C
5...11
9/04
B255 INDUSTRIAL PLUG - IN LATCHING RELAY
FEATURES BENEFITS
C US
UL Recognized
File No. E13224
THE CLASS B255 IS A TWO COIL LATCHING VERSION
OF THE GENERAL PURPOSE TYPE 219 RELAY. WHEN
THE OPERATE COIL IS MOMENTARILY ENERGIZED,
THE RELAY MECHANICALLY LATCHES IN THE
ENERGIZED POSITION AND REMAINS IN THE
ENERGIZED POSITION WITH THE POWER REMOVED
FROM THE COIL. THE SECOND COIL WHEN
MOMENTARILY ENERGIZED, PROVIDES ELECTRICAL
RESET OF THE CONTACTS. ALL CONTACTS OPERATE
FROM A COMMON ARMATURE TO PREVENT CONTACT
OVERLAPPING. COILS ARE RATED FOR CONTINUOUS
DUTY. NUCLEAR QUALIFIED VERSIONS ARE
AVAILABLE. CONTACT THE FACTORY FOR DETAILS.
ULTIMATE RUGGEDNESS & RELIABILITY.
VERSATILE OPERATION
CAN BE PURCHASED EXACTLY
AS NEEDED
WILL NOT TARNISH, LOW CONTACT
RESISTANCE FOR THE LIFE OF THE RELAY
UL Listed industrial
control equipment 225G
when used with
27390D socket
INDUSTRIAL PLUG-IN CONSTRUCTION
2 COILS WITH OPERATE COIL DOMINANT
MULTIPLE CONTACT ARRANGEMENTS
AND AVAILABLE OPTIONS
GOLD DIFFUSED
CONTACTS STANDARD
** RELAYS WITH CODE 69 FEATURE
(CHECK WITH FACTORY FOR UL & CSA LISTING)
* SM = SINGLE MAKE DM = DOUBLE MAKE
UL CONTACT LOAD RATINGS TABLE
VOLTS
24 VDC
120 VAC
240 VAC
28 VDC
125 VDC
125 VDC SM*
125 VDC DM
250 VDC SM
250 VDC DM
120 VAC
240 VAC
MAKE
30 A
30 A
30 A
30 A
30 A
30 A
30 A
30 A
30 A
1.5 A
7.5 A
CARRY INDUCTIVE
RESISTIVE
BREAK
**FOR VERSIONS WITH SUFFIX 69 PERMANENT MAGNET BLOWOUTS
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
5 A
2.5 A
10 A
10 A
5 A
10 A
0.5 A
1.5 A
4 A
0.5 A
1.5 A
5 A
2.5 A
10 A
3 A
1 A
3 A
0.1 A
0.5 A
1.5 A
150 A
0.5 A
2 A
1 A
**FOR VERSIONS WITH SUFFIX 33 BIFURCATED CONTACTS
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
COIL
COIL
Pull-in Voltage AC (50/60 Hz):<
Pull-in Voltage DC:<
Dropout Voltage AC (50/60 Hz):>
Dropout Voltage DC:>
Maximum Voltage:
Resistance Tolerance:
Coil Power AC (50/60 Hz):
Coil Power DC:
Insulation System
Per UL Standard 1446:
Duty:
CONT
CONTA
ACTS
CTS
Contact Material:
Contact Rating AC Amperes (AC1):
Contact Rating AC Voltage:
Contact Rating DC Amperes (DC1):
Contact Rating DC Voltage:
Horse Power (AC):
Horse Power (AC):
Pilot Duty (60 Hz):
Minimum Recommended Load:
TIMING
Operate Time:
Release Time:
DIELECTRIC S
DIELECTRIC STRENGTH
TRENGTH
Coil to Contacts:
Across Open Contacts:
Pole to Pole:
Contacts to Frame:
Insulation Resistance:
TEMPER
TEMPERA
ATURE
TURE
Operating, AC Lower:
Operating, AC Upper:
Operating, DC Lower:
Operating, DC Upper:
Storage, Lower:
Storage, Upper:
LIFE EXPECT
LIFE EXPECTANC
ANCY
Y
Electrical @ Rated Load (AC1):
Mechanical @ no Load :
MISCELLANEOUS
Operating Position:
Insulation Material:
Enclosure Material:
Cover Protection Category:
Weight:
UNITS
UNITS
% of nominal
% of nominal
% of nominal
% of nominal
% of nominal
% ±
VA
W
A
V
A
V
HP
HP
ma
ms
ms
V rms
V rms
V rms
V rms
megohms
minimum @VDC
ºC
ºC
ºC
ºC
ºC
ºC
operations
operations
IP
grams
85
80
Not applicable
Not applicable
110
10
5
2
Class B (130ºC)
Continuous
Silver alloy,
gold flashed
10
120
10
24
None
None
Not applicable
100 @ 5 VDC
or 0.5 W
25
20
1500
1500
1500
1500
1000 @ 500
-10
+60
-10
+60
-40
+105
100,000
10,000,000
Any
Molded plastic
Clear Polycarbonate
50
215
GENER
GENERAL SPECIFIC
AL SPECIFICA
ATIONS (@
TIONS (@ 25
25ºC
ºC)
)
5...12
9/04
WIRING DIAGRAM
(VIEWED FROM PIN END)
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
OUTLINE DIMENSIONS
DIMENSIONS SHOWN IN INCHES & (MILLIMETERS)
.
ORDERING CODE
ORDERING CODE
STANDARD
PART NUMBERS
CONTACT
CONFIGU-
RATION
NOMINAL
INPUT
VOLTAGE
NOMINAL
RESISTANCE
(OHMS)
UP TO 3PDT, 10 AMPS
Mating Socket
27390D
See section 7
B255 INDUSTRIAL PLUG - IN LATCHING RELAY
B255BXBP-120A
B255XBXP-120A
B255XCXP-120A
B255BXBP-24D
540/1450 W
540/1450 W
540/1450 W
250/300 W
120 VAC
120 VAC
120 VAC
24 VDC
2 N.O. +2 N.C.
DPDT
3PDT
DPDT
Current inrush on all
AC coils is less than
twice the listed
milliamperes ratings
as shown in the
AC coil data table.
Currents shown in
table measured at 60 Hz.
DC relays, 1.8 Watts
(2.5 W @ 125VDC)
6 1
7 12
6 1
7 12
6 1
7 12
OPERATE
OPERATE
OPERATE
6 1
7 12
RESET RESET
RESET
B255 XCX P LM
-120A
CLASS:
B255 2 COIL LATCH PLUG-IN
CONTACT ARRANGEMENTS:
XBX: DPDT
XCX: 3PDT
ABX: SPST-NO & 2 FORM C
BXB: DPST-NO & 2 FORM B
STANDARD FEATURES:
POLYCARBONATE COVER: CODE "P"
OPTIONAL FEATURES:
INDICATOR LAMP ACROSS BOTH COILS: CODE "L"
MANUAL ACTUATOR: CODE "M"
LIGHT & ACTUATOR: CODE "LM"
PERM. MAGNET BLOWOUT: CODE "69"
BIFURCATED CONTACTS: CODE "33"
DC COIL SUPPRESSION: CODE "V"
AC COIL SUPPRESSION: CODE "V1"
COIL VOLTAGE:
6, 12, 24, 120, 240 ADD "A" FOR AC COILS
6, 12, 24, 115-125 ADD "D" FOR DC COILS
AC OPERATED, 10 AMP
DC OPERATED,
DUAL COIL,
10 AMP
NOMINAL
VOLTAGE RESISTANCE
OHMS ±10%
RESET COIL (3 VA)
COIL CURRENT
(mA)
6
12
24
120
240
RESISTANCE
OHMS ±10% COIL CURRENT
(mA)
OPERATE COIL (5 VA)
3.0
14.5
52.0
1450
5000
840
256
150
26.5
4.8
1. 10
4.20
15.5
540
1815
800
410
200
45.0
13.2
AC COIL DATA (50/60 Hz)
NOMINAL
VOLTAGE RESISTANCE
OHMS ±10%
RESET COIL (1.4 W)
COIL CURRENT
(mA)
6
12
24
115/125
RESISTANCE
OHMS ±10% COIL CURRENT
(mA)
OPERATE COIL (1.8 W)
21.0
85.0
300
8000
286
141
80
14.4
15.5
63.5
250
6200
385
189
96.0
20.0
COIL SPECIFICATIONS @ 25ºC
COIL SPECIFICATIONS @ 25ºCDC COIL DATA
1.468
(37.2)
3.75
(95.2)
4.56
(115.8)
2.625 MAX
(66.6)
LOCKING
CLIP
12 11 10 9 8
6 5 4 3 2
B255XBXP
(DPDT)
B255XCXP
(3PDT)
B255ABXP
(DPDT + 1 N. O.)
B255BXBP
(2 N.O + 2 N. C.)
COIL MEASURED @ 25 ºC
5...13
9/04
385 DIN / PANEL MOUNTABLE LATCHING RELAY
FEATURES BENEFITS
PENDING
C US
THE CLASS 385 RELAY IS A MECHANICALLY
LATCHED, ELECTRICALLY RESET RELAY,
IT CAN BE FURNISHED WITH TWO, FOUR
OR SIX SETS OF DOUBLE THROW CONTACTS,
AND ALL POPULAR COIL VOLTAGES. AC COIL
TYPES INCORPORATE BUILT IN RECTIFIERS
FOR MAXIMUM COIL EFFICIENCY AND MINIMAL
HEATING FOR CONTINUOUS DUTY CAPABILITY.
ALL TERMINALS ARE STANDARD 0.187 INCH
QUICK CONNECT AND ARE ALSO PIERCED
FOR DIRECT SOLDER CONNECTION IF
DESIRED. THE MOLDED PLASTIC DUST COVER
SNAPS ONTO A STANDARD DIN RAIL, AS WELL
AS INCORPORATING MOUNTING SLOTS THAT
EXACTLY MATCH POTTER & BRUMFIELDS KUB.
UNLIKE MOST MECHANICAL LATCH RELAYS,
THE 385 DOES NOT HAVE A DOMINANT COIL.
IF BOTH COILS ARE ENERGIZED AT THE SAME
TIME, ALL OF THE NORMALLY OPEN CONTACTS
CLOSE, AND ALL NORMALLY CLOSED
CONTACTS OPEN. WHICH EVER COIL IS
DE-ENERGIZED FIRST, RELEASES AND LOCKS
THE OTHER SIDE IN ITS ENERGIZED POSITION.
MAXIMUM FLEXIBILITY OF USES EASILY HANDLES
MODERATELY HEAVY LOADS
SUITABLE FOR NEARLY ALL CONTROL VOLTAGES
RAPID INSTALLATION -CAN REPLACE
EXISTING OPEN TYPES SUCH AS POTTER &
BRUMFIELD KUB WITHOUT PANEL MODIFICATION
RUNS COOLER & QUIETER,
USES LESS ENERGY.
UP TO 6PDT
15 AMP CONTACT:
3 AMP 600 VAC RATING:
DIN RAIL/PANEL
MOUNTABLE:
RECTIFIED COILS
ON AC TYPES:
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
COIL
COIL
Pull-in Voltage AC (50/60 Hz):<
Pull-in Voltage DC:<
Dropout Voltage AC (50/60 Hz):>
Dropout Voltage DC:>
Maximum Voltage:
Resistance Tolerance:
Coil Power AC (50/60 Hz):
Coil Power DC:
Insulation System
Per UL Standard 1446:
Duty:
CONT
CONTA
ACTS
CTS
Contact Material:
Contact Rating AC Amperes (AC1):
Contact Rating AC Voltage:
Contact Rating DC Amperes (DC1):
Contact Rating DC Voltage:
Horse Power (AC):
Horse Power (AC):
Pilot Duty (60 Hz):
Minimum Recommended Load:
TIMING
Operate Time:
Release Time:
DIELECTRIC S
DIELECTRIC STRENGTH
TRENGTH
Coil to Contacts:
Across Open Contacts:
Pole to Pole:
Contacts to Frame:
Insulation Resistance:
TEMPER
TEMPERA
ATURE
TURE
Operating, AC Lower:
Operating, AC Upper:
Operating, DC Lower:
Operating, DC Upper:
Storage, Lower:
Storage, Upper:
LIFE EXPECT
LIFE EXPECTANC
ANCY
Y
Electrical @ Rated Load (AC1):
Mechanical @ no Load :
MISCELLANEOUS
Operating Position:
Insulation Material:
Enclosure Material:
Cover Protection Category:
Weight:
UNITS
UNITS
% of nominal
% of nominal
% of nominal
% of nominal
% of nominal
% ±
VA
W
A
V
A
V
HP
HP
ma
ms
ms
V rms
V rms
V rms
V rms
megohms
minimum @VDC
ºC
ºC
ºC
ºC
ºC
ºC
operations
operations
IP
grams
85
80
Not applicable
Not applicable
110
10
2
2.6
Class B (130ºC), F(155ºC)
Intermittent
Silver alloy, gold flashed
15 / 3
277/ 600
10
28
1/3 @120
1/2 @ 208 to 600
Not applicable
100 @ 5 VDC
or 0.5 W
25
25
2000
500
1500
Not applicable
1000 @ 500
-40
+70
-40
+70
-40
+105
100,000
10,000,000
Any
Molded plastic
Clear Polycarbonate
40
85
GENER
GENERAL SPECIFIC
AL SPECIFICA
ATIONS (@
TIONS (@ 25
25
ºC
ºC
)
)
5...14
9/04
WIRING DIAGRAM
(VIEWED FROM PIN END)
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
OUTLINE DIMENSIONS
DIMENSIONS SHOWN IN INCHES & (MILLIMETERS)
.
ORDERING CODE
ORDERING CODE
385 DIN / PANEL MOUNTABLE LATCHING RELAY
DPDT, 4PDT & 6PDT 15 AMPS
RETROFITS POTTER & BRUMFIELD KUB
SEE END OF SECTION 5 FOR CROSS REFERENCE
STANDARD
PART
NUMBERS
385XDX-120A
385XDX-12D
385XDX-24D
4800/4800 W
85/85 W
340/340 W
120 VAC
12 VDC
24 VDC
4PDT
4PDT
4PDT
CONTACT
CONFIGU-
RATION
F 385 XBX -240A
COILS:
130ºC: NO CODE,
155ºC: CODE F
CLASS:
385 - 15 AMPS RATING WITH
0.187î™— QUICK CONNECT/
SOLDER TERMINALS
CONTACT ARRANGEMENTS:
XBX: DPDT,
XDX: 4PDT
XFX: 6PDT
COIL VOLTAGE:
6, 12, 24, 120, 240 ADD A FOR AC COILS
6, 12, 24, 48, 110-125 ADD D FOR DC COILS
QUICK CONNECT/
SOLDER TERMINALS
2.392
(60.8)
1. 4 9
(37.8)
0.16
(4.06)
3.04
(77.2)
2.72
(69.1)
1.36
(34.5)
1. 6 7
(42.4)
1. 3 7 5
(34.9)
DIN RAIL
LOCKING
385XBX DPDT
(DC COIL)
385XBX DPDT
(AC COIL)
XFX 6PDT
(DC COIL)
1
4
7
AB
2
5
8
3
6
9
1
4
7
AB
2
5
8
3
6
9
COIL A
COIL B
NOMINAL
INPUT
VOLTAGE
NOMINAL
RESISTANCE
(OHMS)
AC OPERATED,
DUAL COIL, 15 AMP
DC OPERATED, 15 AMP
1 2 3
4 5 6
7 8 9
A B
1 2 3
4 5 6
7 8 9
A B
XDX 4PDT
(AC COIL)
1
4
7
A B
3
6
9
1
4
7
AB
3
6
9
COIL A
COIL B
XDX 4PDT
(DC COIL)
1
4
7
AB
3
6
9
1
4
7
AB
3
6
9
COIL A
COIL B
XFX 6PDT
(AC COIL)
1
4
7
AB
2
5
8
3
6
9
1
4
7
AB
2
5
8
3
6
9
COIL A
COIL B
7
AB
2
5
7
AB
2
5
COIL A
COIL B
7
AB
2
5
7
AB
2
5
COIL A
COIL B
COIL MEASURED @ 25 ºC
5...15
9/04
311 SEQUENCE (STEPPER) RELAY
FEATURES BENEFITS
C US
UL Recognized
File No. E7104
THE CLASS A311 RELAY IS A SEQUENCING
VERSION OF THE CLASS 219 GENERAL
PURPOSE RELAY. CONTACTS TRANSFER ON
EACH IMPULSE TO THE COIL. MODELS ARE
AVAILABLE WITH CONTACTS TRANSFERRING
WHEN COIL IS ENERGIZED OR WHEN
DE-ENERGIZED. A DOUBLE CAM MOVEMENT,
ONE CAM PER SNAP SWITCH, ALLOWS ONE
OR BOTH CONTACTS TO BE ENERGIZED OR
DE-ENERGIZED WITH THE CAM ROTATING ONE
HALF STEP WHEN THE COIL IS ENERGIZED AND
THE OTHER HALF STEP WHEN THE COIL IS
DE-ENERGIZED ASSURES RELIABLE
SEQUENCING OF THE TWO SPDT SNAP SWITCHES.
RUGGED & RELIABLE
EXTRA LONG LIFE WHEN LOAD IS ENERGIZED
ONLY WHEN THE 311î™–S COIL IS ON.
CAN BE CUSTOMIZED WITH ANY
SEQUENCE DIVISIBLE INTO EIGHT
INDUSTRIAL PLUG-IN
CONSTRUCTION:
TRANSFER ON RELEASE
VERSION AVAILABLE :
NON-STANDARD
SEQUENCES AVAILABLE
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
COIL
COIL
Pull-in Voltage AC (50/60 Hz):<
Pull-in Voltage DC:<
Dropout Voltage AC (50/60 Hz):>
Dropout Voltage DC:>
Maximum Voltage:
Resistance Tolerance:
Coil Power AC (50/60 Hz):
Coil Power DC:
Insulation System
Per UL Standard 1446:
Duty:
CONT
CONTA
ACTS
CTS
Contact Material:
Contact Rating AC Amperes (AC1):
Contact Rating AC Voltage:
Contact Rating DC Amperes (DC1):
Contact Rating DC Voltage:
Horse Power (AC):
Horse Power (AC):
Pilot Duty (60 Hz):
Minimum Recommended Load:
TIMING
Operate Time:
Release Time:
DIELECTRIC S
DIELECTRIC STRENGTH
TRENGTH
Coil to Contacts:
Across Open Contacts:
Pole to Pole:
Contacts to Frame:
Insulation Resistance:
TEMPER
TEMPERA
ATURE
TURE
Operating, AC Lower:
Operating, AC Upper:
Operating, DC Lower:
Operating, DC Upper:
Storage, Lower:
Storage, Upper:
LIFE EXPECT
LIFE EXPECTANC
ANCY
Y
Electrical @ Rated Load (AC1):
Mechanical @ no Load :
MISCELLANEOUS
Operating Position:
Insulation Material:
Enclosure Material:
Cover Protection Category:
Weight:
UNITS
UNITS
% of nominal
% of nominal
% of nominal
% of nominal
% of nominal
% ±
VA
W
A
V
A
V
HP
HP
ma
ms
ms
V rms
V rms
V rms
V rms
megohms
minimum @VDC
ºC
ºC
ºC
ºC
ºC
ºC
operations
operations
IP
grams
85
80
Not applicable
Not applicable
110
10
5
2
Class B (130ºC)
Continuous
Silver alloy
5
120
5
30
None
None
Not applicable
100 @ 5 VDC
or 0.5 W
35
30
1500
500
1500
Not applicable
1000 @ 500
-10
+60
-10
+60
-40
+105
100,000
10,000,000
Any
Molded plastic
Clear Polycarbonate
50
190
GENER
GENERAL SPECIFIC
AL SPECIFICA
ATIONS (@
TIONS (@ 25
25
ºC
ºC
)
)
5...16
9/04
WIRING DIAGRAM
(VIEWED FROM PIN END)
PHONE: (843) 393-5778 FAX: (843) 393-4123 EMAIL: info@magnecraft.com
OUTLINE DIMENSIONS
DIMENSIONS SHOWN IN INCHES & (MILLIMETERS)
.
STANDARD
PART
NUMBERS
NOMINAL
INPUT
VOLTAGE
NOMINAL
RESISTANCE
(OHMS)
AC OPERATED
, 5 AMP
DC OPERATED
, 5 AMP
DPDT, 5 AMPS
311 SEQUENCE (STEPPER) RELAY
ORDERING CODE
ORDERING CODE
A311XBXP-120A
A311XBXP-240A
A311XBXPR-120A
A311XBXP-24D
A311XBXPR-24D
120 VAC
240 VAC
120 VAC
24 VDC
24 VDC
540 W
1815 W
540 W
250 W
250 W
A311XBXP
A311XBXPR*
(DPDT)
TRANSFER ON RELEASE
OPERATE
6 1
7 12
A311 XBX P R L -120A
CLASS:
A311 INDUSTRIAL PLUG-IN ,
SEQUENCE RELAY,
5 AMP, DPDT
CONTACT ARRANGEMENTS:
XBX: DPDT
STANDARD FEATURES:
PLUG-IN WITH POLYCARBONATE
COVER: CODE P
CONTACT TRANSFER:
WHEN COIL IS ENERGIZED: NO CODE
WHEN COIL IS DE-ENERGIZED: CODE R
OPTIONS:
INDICATOR LAMP: CODE L
COIL SUPPRESSION: CODE V
COIL VOLTAGE:
6, 12, 24, 120, 240 ADD "A" FOR AC COILS
6, 12, 24, 48, 110-125 ADD "D" FOR DC COILS
2.625 MAX
(66.6)
3.75
(95.2)
4.56
(115.8)
1.468
(37.2)
LOCKING
CLIP
12 11 10 9 8 7
6 5 4 3 2 1
Mating Socket
27390D
See section 7
COIL MEASURED @ 25 ºC
5...17
9/04
THE CROSS REFERENCE IS INTENDED TO MATCH FOOT PRINT, INTERNAL WIRING, AND CONTACT LOAD RATINGS.
CONSTRUCTION FEATURES AND GENERAL SPECIFICATIONS SHOULD BE COMPARED IF EXACT REPLACEMENT IS REQUIRED.
SECTION
CROSS REFERENCE GUIDE
SECTION 5
5
619-11B200
619-11C200
619-11D200
619-11F200
RR2KP-U-AC24
RR2KP-U-AC120
RR2KP-U-AC240
RR2KP-U-DC12
RR2KP-U-DC24
RR2KP-U-DC110
KUL11A15S-120
KUL11D15S-12
KUL11D15S-24
KUL11D15D-12
KUL11D15D-24
KUR-11D15-12
KUR-11D15-24
KUR-11D15-48
KUR-11D15-110
W250AML2CPX-8
W250AML2CPX-9
W250AML2CPX-10
W250ML2CPX-6
W250ML2CPX-7
W250ML2CPX-8
285XBXC-120A
285XBXC-12D
285XBXC-24D
285XBXCD-12D
285XBXCD-24D
Joe Zintel, PRODUCT MANAGER
FAX: (847) 441-2522
EMAIL: jzintel@magnecraft.com
711XBXC-12D
711XBXC-24D
711XBXC-48D
711XBXC-110D
755XBXC-24A
755XBXC-120A
755XBXC-240A
755XBXCD-12D
755XBXCD-24D
755XBXCD-110D
W388AMLCPX-9
W388MLCPX-6
W388MLCPX-7
W388ML2CPX-6
W388ML2CPX-7
385XDX-120A
385XDX-12D
385XDX-24D
KB-17AG-120 OR KUB-17A15-120
KB-17DG-12 OR KUB-17D15-12
KB-17DG-24 OR KUB-17D15-24
MAGNECRAFT &
STRUTHERS-DUNN OTHER
EUR
EUROPE
OPE
MAGNECRAFT & STRUTHERS-DUNN
OFFICE MUNICH
FORSTENRIEDER ALLEE 227
D 81476 MUNCHEN/GERMANY
TEL.: 4989 75080310 FAX: 4989 7559344
EMAIL: renatesteinback@magnecraft.de
U
U.
. S.
S.
A.
A.
MAGNECRAFT & STRUTHERS-DUNN
700 ORANGE STREET
DARLINGTON, SC. 29532-3739
TEL.: (843) 393-5421 FAX: (843) 393-4123
WEBSITE: www.magnecraft.com
EMAIL: info@magnecraft.com
FOR LATCHING RELAYS APPLICATION
ENGINEERING ASSISTANCE
POTTER & BRUMFIELD
MIDTEX
MAGNECRAFT
& STRUTHERS-DUNN
MAGNECRAFT
& STRUTHERS-DUNN
MAGNECRAFT
& STRUTHERS-DUNN
MAGNECRAFT
& STRUTHERS-DUNN POTTER & BRUMFIELD
MAGNECRAFT
& STRUTHERS-DUNN
MAGNECRAFT
& STRUTHERS-DUNN POTTER & BRUMFIELD
5...18
9/04
IDEC
MAGNECRAFT
& STRUTHERS-DUNN
MAGNECRAFT
& STRUTHERS-DUNN
