J7KCA
Auxiliary Relay (Contactor Relay)
Same shape as J7KC magnetic contactors Ideal for standardizing panel design
- Push-In Plus wiring technology saves wiring and maintenance time
- World's smallest size*1
- High Contact Reliability (Min. 5 VDC, 3 mA)
- Combination with auxiliary contact units to configure a wide variety of contact variations
- Coil surge absorber unit installed as standard*2
- Certified as compliant with the main safety standards
*1. According to OMRON investigation, as of August 2019. For push-in models.
*2. DC operated
Specifications & ordering info
Ordering Information
Main unit
Contactor relay
| Coil rating | Contact configuration | Order code |
|---|---|---|
| 24 VAC | 4PST-4NO | J7KCA-40 AC24 |
| 4PST-3NO 1NC | J7KCA-31 AC24 | |
| 4PST-2NO 2NC | J7KCA-22 AC24 | |
| 48 VAC | 4PST-4NO | J7KCA-40 AC48 |
| 4PST-3NO 1NC | J7KCA-31 AC48 | |
| 4PST-2NO 2NC | J7KCA-22 AC48 | |
| 100 VAC | 4PST-4NO | J7KCA-40 AC100 |
| 4PST-3NO 1NC | J7KCA-31 AC100 | |
| 4PST-2NO 2NC | J7KCA-22 AC100 | |
| 110 VAC | 4PST-4NO | J7KCA-40 AC110 |
| 4PST-3NO 1NC | J7KCA-31 AC110 | |
| 4PST-2NO 2NC | J7KCA-22 AC110 | |
| 120 VAC | 4PST-4NO | J7KCA-40 AC120 |
| 4PST-3NO 1NC | J7KCA-31 AC120 | |
| 4PST-2NO 2NC | J7KCA-22 AC120 | |
| 200 VAC | 4PST-4NO | J7KCA-40 AC200 |
| 4PST-3NO 1NC | J7KCA-31 AC200 | |
| 4PST-2NO 2NC | J7KCA-22 AC200 | |
| 220 VAC | 4PST-4NO | J7KCA-40 AC220 |
| 4PST-3NO 1NC | J7KCA-31 AC220 | |
| 4PST-2NO 2NC | J7KCA-22 AC220 | |
| 230 VAC | 4PST-4NO | J7KCA-40 AC230 |
| 4PST-3NO 1NC | J7KCA-31 AC230 | |
| 4PST-2NO 2NC | J7KCA-22 AC230 | |
| 240 VAC | 4PST-4NO | J7KCA-40 AC240 |
| 4PST-3NO 1NC | J7KCA-31 AC240 | |
| 4PST-2NO 2NC | J7KCA-22 AC240 | |
| 380 VAC | 4PST-4NO | J7KCA-40 AC380 |
| 4PST-3NO 1NC | J7KCA-31 AC380 | |
| 4PST-2NO 2NC | J7KCA-22 AC380 | |
| 400 VAC | 4PST-4NO | J7KCA-40 AC400 |
| 4PST-3NO 1NC | J7KCA-31 AC400 | |
| 4PST-2NO 2NC | J7KCA-22 AC400 | |
| 440 VAC | 4PST-4NO | J7KCA-40 AC440 |
| 4PST-3NO 1NC | J7KCA-31 AC440 | |
| 4PST-2NO 2NC | J7KCA-22 AC440 | |
| 500 VAC | 4PST-4NO | J7KCA-40 AC500 |
| 4PST-3NO 1NC | J7KCA-31 AC500 | |
| 4PST-2NO 2NC | J7KCA-22 AC500 | |
| 12 VDC | 4PST-4NO | J7KCA-40 DC12 |
| 4PST-3NO 1NC | J7KCA-31 DC12 | |
| 4PST-2NO 2NC | J7KCA-22 DC12 | |
| 24 VDC | 4PST-4NO | J7KCA-40 DC24 |
| 4PST-3NO 1NC | J7KCA-31 DC24 | |
| 4PST-2NO 2NC | J7KCA-22 DC24 | |
| 48 VDC | 4PST-4NO | J7KCA-40 DC48 |
| 4PST-3NO 1NC | J7KCA-31 DC48 | |
| 4PST-2NO 2NC | J7KCA-22 DC48 | |
| 60 VDC | 4PST-4NO | J7KCA-40 DC60 |
| 4PST-3NO 1NC | J7KCA-31 DC60 | |
| 4PST-2NO 2NC | J7KCA-22 DC60 | |
| 100 VDC | 4PST-4NO | J7KCA-40 DC100 |
| 4PST-3NO 1NC | J7KCA-31 DC100 | |
| 4PST-2NO 2NC | J7KCA-22 DC100 |
Optional Unit (Order Separately)
Auxiliary contact unit
| Number of poles | Contact configuration | Order code |
|---|---|---|
| 2 | 2PST-2NO | J73KC-AM-20 |
| 2PST-1NO 1NC | J73KC-AM-11 | |
| 2PST-2NC | J73KC-AM-02 | |
| 4 | 4PST-4NO | J73KC-AM-40 |
| 4PST-3NO 1NC | J73KC-AM-31 | |
| 4PST-2NO 2NC | J73KC-AM-22 | |
| 4PST-1NO 3NC | J73KC-AM-13 | |
| 4PST-4NC | J73KC-AM-04 |
Coil surge absorption unit
| Adopted Coil voltage type | LED indicator | Order code |
|---|---|---|
| 24-48 VAC | No | J76KC-RC-1 |
| 48-125 VAC | J76KC-RC-2 | |
| 100-125 VAC | J76KC-RC-3 | |
| 24-48 VAC | Yes | J76KC-RC-N-1 |
| 48-125 VAC | J76KC-RC-N-2 |
Insulation stop
| Minimum order (bag) | Order code |
|---|---|
| 1 (30 pcs./bag) |
J77KC-K |
Specifications
Coil rating
AC operated
| Displayed model | Rated voltage | Allowable voltage range | Must operate voltage | Must release voltage | |||
|---|---|---|---|---|---|---|---|
| 50 Hz | 60 Hz | 50 Hz | 60 Hz | ||||
| AC 24 | 24 VAC | 24-26 VAC | 85 to 110% | 21-27 VAC | 21-29 VAC | 85% max. | 20% min. |
| AC 48 | 48 VAC | 48-52 VAC | 41-53 VAC | 41-58 VAC | |||
| AC 100 | 100 VAC | 100-110 VAC | 85-110 VAC | 85-121 VAC | |||
| AC 110 | 100-110 VAC | 110-120 VAC | 85-121 VAC | 94-132 VAC | |||
| AC 120 | 110-120 VAC | 120-130 VAC | 94-132 VAC | 102-143 VAC | |||
| AC 200 | 200 VAC | 200-220 VAC | 170-220 VAC | 170-242 VAC | |||
| AC 220 | 200-220 VAC | 220-240 VAC | 170-242 VAC | 187-264 VAC | |||
| AC 230 | 220-230 VAC | 230 VAC | 187-253 VAC | 196-253 VAC | |||
| AC 240 | 220-240 VAC | 240-260 VAC | 187-264 VAC | 204-286 VAC | |||
| AC 380 | 346-380 VAC | 380-420 VAC | 295-418 VAC | 323-462 VAC | |||
| AC 400 | 380-400 VAC | 400-440 VAC | 323-440 VAC | 340-484 VAC | |||
| AC 440 | 415-440 VAC | 440-480 VAC | 353-484 VAC | 374-528 VAC | |||
| AC 500 | 480-500 VAC | 500-550 VAC | 408-550 VAC | 425-605 VAC | |||
DC operated
| Displayed model | Rated voltage | Allowable voltage range | Must operate voltage | Must release voltage | |
|---|---|---|---|---|---|
| DC 12 | 12 VDC | 85 to 110% | 11-14 VDC | 85% max. | 10% min. |
| DC 24 | 24 VDC | 21-27 VDC | |||
| DC 48 | 48 VDC | 41-53 VDC | |||
| DC 60 | 60 VDC | 51-66 VDC | |||
| DC 100 | 100 VDC | 85-110 VDC | |||
| DC 110 | 110 VDC | 94-121 VDC | |||
| DC 120 | 120 VDC | 102-132 VDC | |||
| DC 200 | 200 VDC | 170-220 VDC | |||
| DC 210 | 210 VDC | 179-231 VDC | |||
| DC 220 | 220 VDC | 187-242 VDC | |||
Coil characteristics (reference value)
AC operated
| Frequency | 50 Hz | 60 Hz | |
| Coil power consumption | Making (VA) | 22 (200 V) | 25 (220 V) |
| Holding (VA) | 4.5 (200 V) | 4.5 (220 V) | |
| Power loss (W) | 1.2 (200 V) | 1.3 (220 V) | |
| Must operate voltage (V) | 122 to 135 | 128 to 138 | |
| Must release voltage (V) | 80 to 89 | 83 to 96 | |
| Operate time (ms) | 17 to 26 | ||
| Release time (ms) | 6 to 16 | ||
Note:
- Coil ratings: Characteristics for 200 VAC, 50 Hz / 200-220 VAC, 60 Hz.
- Coil power consumption value is the same for a coil that is not rated 200 VAC.
- Indicated operate/release times for 200 VAC, 50 Hz.
- Closed and open voltages of 100 V coil (100 VAC, 50 Hz/100-110 VAC, 60 Hz) are approximately one half the values in the table above.
- Values in the table above are examples for 20°C cold condition.
DC operated
| Coil power consumption | Making (W) | 2.4 (24 V) |
| Holding (W) | 2.4 (24 V) | |
| Time constant (ms) | Holding | 20 |
| Must operate voltage (V) | 10 to 11 | |
| Must release voltage (V) | 4 to 6 | |
| Operate time (ms) | 34 to 60 | |
| Release time (ms) | 5 to 10 | |
Note:
- Coil ratings: Characteristics for 24 VDC.
- Coil power consumption value is the same for a coil that is not rated 24 VDC.
- Values in the table above are examples for 20°C cold condition.
Characteristics
| Auxiliary circuit ratings | Ratings based on IEC 60947-5-1/ JIS C 8201-5-1 |
Voltage range (V) | 100-120 AC | 200-240 AC | 380-440 AC | 500-600 AC | 24 DC | 48 DC | 110 DC | 220 DC | |
| Rated operational current (A) | AC-15 (coil load) | DC-13 (coil load) | |||||||||
| 3 | 3 | 1 | 0.5 | 2 | 1 | 0.3 | 0.2 | ||||
| AC-12 (resistive load) | DC-12 (resistive load) | ||||||||||
| 6 | 6 | 6 | 3 | 3 | 2 | 1.5 | 0.5 | ||||
| Contact closed and breaking current (A) |
30 | 30 | 10 | 5 | 30 | 30 | 10 | 5 | |||
| Conventional free air thermal current (rated carry current) (A) |
10 | ||||||||||
| Ratings based on UL 508 |
Rated carry current (A) | 10 | 2.5 | ||||||||
| Voltage range | 120 AC | 240 AC | 480 AC | 600 AC | 125 DC | 250 DC | |||||
| Contact closed current (A) |
60 | 30 | 15 | 12 | 0.55 | 0.27 | |||||
| Breaking current (A) | 6 | 3 | 1.5 | 1.2 | 0.55 | 0.27 | |||||
| Rating code | A 600 | Q 300 | |||||||||
| Minimum operate voltage/current (reference value) |
5 VDC, 3 mA | ||||||||||
| Rated insulation voltage | 690 VAC | ||||||||||
| Rated impulse dielectric strength | 6 kV | ||||||||||
| Rated frequency | 50/60 Hz | ||||||||||
| Vibration resistance | Vibration: 10 to 55 Hz, acceleration: 15 m/s2 | ||||||||||
| Shock resistance | Shock value 50 m/s2 | ||||||||||
| Electrical/ mechanical endurance |
Switching frequency (times per hour) | 1800 | |||||||||
| Mechanical (10,000 operations min.) | 1000 | ||||||||||
| Electrical (10,000 operations min.) |
AC-15 | 220 V | 50 | ||||||||
| 440 V | 50 | ||||||||||
| AC-12 | 220 V | 25 | |||||||||
| 440 V | 25 | ||||||||||
| DC-13 | 220 V | 15 | |||||||||
| DC-12 | 220 V | 50 | |||||||||
| Contact resistance (reference value) | 50 mΩ max. (1 mA at 6 VDC using the voltage drop method) | ||||||||||
| Contact structure | Double-break | ||||||||||
| Contact material | Ag alloy | ||||||||||
| Degree of protection | IP20 (IEC60529) | ||||||||||
| Operating temperature | −10 to +55°C (however, daily average shall not exceed 35°C) | ||||||||||
| Ambient storage temperature | −40 to +65°C (no condensation or icing) | ||||||||||
| Relative humidity | 45% to 85% RH (no condensation or icing) | ||||||||||
| Altitude | 2000 m max. | ||||||||||
| Weight | 160 g (J7KCA- |
||||||||||
| Applicable standards |
Safety standard | EN 60947-5-1 (IEC 60947-5-1), UL 60947-4-1, CSA 22.2 No.60947-4-1, CCC GB/T 14048.5 | |||||||||
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