Square D TeSys K Control Relay – Model CA4KN31BW3
The Square D CA4KN31BW3 is a TeSys K series control relay featuring a 3 NO + 1 NC contact configuration, rated up to 690V. The 24V DC low-consumption coil minimizes power draw while delivering reliable switching performance with defined de-energization response times.
Key Specifications
- Product Type: Control Relay
- Contact Configuration: 3 NO + 1 NC
- Voltage Rating: 690V
- Coil Voltage: 24V DC (Low Consumption)
- Connection Type: Screw Clamp Terminals
- De-energization NO Opening Time: 10 to 20ms
- De-energization NC Closing Time: 15 to 25ms
- Manufacturer: Square D (Schneider Electric)
- Model: CA4KN31BW3
Features
- 3 NO + 1 NC contact configuration for multi-function control circuit integration
- 24V DC low-consumption coil reduces panel heat load and energy use
- Defined de-energization timing (10–20ms NO opening / 15–25ms NC closing) for predictable circuit behavior
- Screw clamp terminals for secure wiring connections
- Rated to 690V for broad industrial application compatibility
Applications
Used in motor control centers, industrial automation panels, and machine control circuits for interlocking, signaling, and auxiliary switching functions. The low-consumption coil makes it well-suited for energy-efficient control panel designs and PLC-driven systems.



