Relay Contactor Omron | J7KCA-22 AC400
Relay Contactor Omron | J7KCA-22 AC400
Blog Article
The Omron J7KCA-22 AC400 is a relay contactor (also called a power relay or contactor relay) designed for switching high-current AC loads. Below are its key specifications:
General Specifications:
Model: J7KCA-22 AC400
Type: Power Relay / Contactor Relay
Rated Load (AC): 22 A (resistive), 16 A (inductive)
Rated Voltage (AC): 400 V
Contact Configuration:
2 NO (Normally Open) contacts (SPST)
Contact Material: Silver alloy (AgSnO₂) for high durability
Switching Capacity (AC-15): ~5 A at 400 V (inductive load)
Control & Coil Data:
Coil Voltage: AC 400 V (direct line voltage operation)
Power Consumption (Coil): ~3.5 VA
Operate Time: ~15 ms
Release Time: ~10 ms
Mechanical & Electrical Life:
Electrical Life:
100,000+ operations (resistive load, 22 A)
50,000+ operations (inductive load, 16 A)
Mechanical Life: 10 million operations
Terminals & Mounting:
Terminal Type: Screw terminals
Mounting: DIN rail (35 mm) or panel mount
Protection & Safety:
Built-in Surge Suppression: Yes (for coil protection)
Insulation: Class B (130°C)
Safety Standards: CE, UL, cUL, EN 61810-1
Typical Applications:
Industrial control systems
HVAC equipment
Motor starters (small motors)
Lighting control
Power distribution switching
Ordering Information:
Omron Part No.: J7KCA-22 AC400
Alternative Models:
J7KCA-22 AC230 (for 230 V coil)
J7KCA-22 DC24 (for 24 V DC coil)
Comparison with Siemens 3RT1044-1AP00:
| Feature | Omron J7KCA-22 AC400 | Siemens 3RT1044-1AP00 |
|---|---|---|
| Type | Power Relay | Contactor |
| Max Current | 22 A (resistive) | 12 A (AC-3) |
| Voltage | 400 V AC | 690 V AC |
| Contacts | 2 NO | 3 NO (main) + aux. option |
| Coil Voltage | AC 400 V | Multiple options (24V DC, 230V AC, etc.) |
| Mounting | DIN rail / Panel | DIN rail / Screw |
Notes:
The J7KCA-22 AC400 is best for direct line voltage control (no separate control transformer needed).
For motor switching, the Siemens 3RT1044-1AP00 is more robust (higher mechanical life, AC-3 rated).https://store.unigulfsupply.com/product/relay-contactor-omron-j7kca-22-ac400/