The Schneider Electric CA3KN31SD is a TeSys K series control relay designed for reliable switching of electromagnetic loads in industrial control circuits. This relay configuration provides three normally open (NO) and one normally closed (NC) auxiliary contacts, suitable for implementing complex control logic and interlocking functions within machine automation systems.

Technical Details

• Series: TeSys K
• Contact Configuration: 3 Normally Open (NO), 1 Normally Closed (NC)
• Coil Voltage: 24V AC (decoded from CA3K + N31 + SD, where N typically indicates 24V AC coil in this series)
• Maximum Operating Voltage: 690V AC
• Terminal Type: Screw terminals
• Mounting Type: DIN rail or panel mount
• Enclosure Rating: IP20 (finger-safe)
• Operating Temperature Range: -25°C to +55°C

Applications & Compatibility

This control relay is commonly employed in motor control centers, control panels for manufacturing equipment, and building automation systems. Its robust design and versatile contact arrangement make it suitable for applications requiring reliable signaling and switching in environments such as assembly lines, material handling systems, and HVAC controls.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider CA3KN31SD or contact our technical team for cross-reference assistance with compatible TeSys K components.