General Purpose Relays
Industrial Relays
Potter & Brumfield
KUL Series Latching Panel Plug-in Relay
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Magnetic latching relay
Single or dual wound DC coils or single wound AC coils
1, 2, and 3 pole Form C contact arrangement
Reset occurs by reversing polarity in a single coil relay or by
energizing the reset winding in dual coil relays
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Various mounting and socket styles
Typical applications
Alarm systems, machine tools, battery chargers, process and power
controls, pressure washers, paving equipment
Approvals
UL E22575; CSA LR±5734
Technical data of approved types on request
Coil versions, DC coil 1)
Coil
Rated
voltage
VDC
Operate
voltage
VDC
Coil
resistance
Ω±±10
Rated coil
power
W
code
Contact Data
Single coil
±2
24
48
Contact arrangement
Rated voltage
± form C (CO), 2 form C (CO), 3 form C (CO)
±2
24
48
9.1
±8.1
36.1
82.5
±21
472
±811
±1111
±.2
±.25
±.3
241VAC
±1A
Rated current
Contact material
Ag
AgCdO
±±1
±±1
±.25
Min. recommended contact load
Frequency of operation
Operate/release time max.
±11mA, ±2VDC 311mA, ±2VDC
361 ops./hour
Dual coil 2)
±2
24
48
±±1
±2
24
48
9.1
±8.1
36.1
82.5
91
351
±411
7411
±.6
25/25ms
±.65
±.65
±.65
Contact ratings
±±1
±) Latch and reset coil voltages and resistances are the same (unlike coils on request).
2) Dual coil available only with ± or 2 form C contacts.
All figures are given for coil without preenergization, at ambient temperature +23°C.
Type
UL 508
Ag
Load
Cycles
5A, 241VAC
±11x±13
Coil versions, AC coil 3)
±/6HP, ±21VAC
±/3HP, 241VAC
1.5A, ±21VDC
Coil
code
Rated
voltage
VAC
Operate
voltage
VAC
Latch coil
resistance resistance
Ω±±50
Reset coil
Reset coil
resistor
Ω
Ω±±50
2.5A, ±21VAC, tungsten
Single coil
24
±21
241
Dual coil
24
AgCdO
24
±21
241
21.4
±12.1
214.1
±76
3711
±79111
–
–
–
681
±5111
68111
±1A, 251VAC
±/3HP, ±21VAC
±/2HP, 251VAC
5A, ±21VAC, tungsten
1.5A, ±25VDC
±11x±13
±11x±13
24
±21
21.4
±12.1
±11
2525
251
2211
–
±21
5611
3) AC coils use diodes. Diodes and resistors included inside relay with ± and 2 Form C
contacts. For 3 Form C relay, the customer must furnish and wire diodes and resistors
externally (±N4117 is recommended diode).
±1A, 28VDC
±1FLA, 31LRA, ±25VAC
5FLA, ±5LRA, 251VAC
±25VA, pilot duty, ±25/251VAC
All figures are given for coil without preenergization, at ambient temperature +23°C.
Mechanical endurance
±1x±16 ops.
Insulation Data
Initial dielectric strength
Coil Data
between open contacts
between contact and coil
between adjacent contacts
Initial insulation resistance
between insulated elements
511Vrms
±511Vrms
±511Vrms
Coil voltage range
±2 to ±±1VDC (single and dual coil)
24 to 241VAC (single coil)
24 to ±21VAC (dual coil)
Class B
Coil insulation system according UL
±11MΩ
1
08-2011, Rev. 0811
Datasheets and product specification
according to IEC 61810-1 and to be used
only together with the ‘Definitions’ section.
Datasheets and product data is subject to the
terms of the disclaimer and all chapters of
the ‘Definitions’ section, available at
http://relays.te.com/definitions
Datasheets, product data, ‘Definitions’ sec-
tion, application notes and all specifications
are subject to change.
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