Square D TeSys SK Control Relay – Model CA3SK11BD
The Square D CA3SK11BD is a TeSys SK series control relay with a 1 NO + 1 NC contact configuration, designed for control circuit applications up to 690V. Featuring a 24V DC standard coil, it integrates seamlessly with PLC outputs and DC control systems.
Key Specifications
- Series: TeSys SK
- Contacts: 1 NO + 1 NC
- Maximum Voltage: 690V AC
- Coil Voltage: 24V DC (Standard)
- Contact Current Rating: 10A at ≤55°C
- Maximum Switching Voltage: 110V DC
- Contact Ratings: AC-15, DC-13
- Protection: IP2x
- Connection Type: Screw Clamp Terminals
- Mounting: Plate-Rail
- Operating Temperature: -20 to +50°C
- Standards: UL, CSA, IEC
Features
- 1 NO + 1 NC contact configuration for flexible control circuit integration
- 24V DC coil for direct compatibility with PLC and DC control panels
- IP2x protection against accidental contact with live components
- Plate-rail mounting for DIN rail installation
- Rated for both AC-15 and DC-13 duty categories
Applications
Suitable for control circuit interlocking, signaling, and auxiliary switching in motor control centers, automation panels, and industrial control systems. Commonly used with PLCs, motor starters, and contactors.





