Schneider Electric CA2KN31M7 TeSys K Control Relay 3NO 1NC 220-230 V AC Coil Screw Clamp Auxiliary Contactor

Schneider Electric's CA2KN31M7 control relay carries 3NO+1NC contacts and a 220-230 V AC coil within the TeSys K range, rated 10 A conventional thermal current at up to 690 V. Rated for AC-15/DC-13 utilisation categories, it duplicates and interlocks pilot signals in control circuits, terminating on screw clamp terminals for DIN rail or screw-fixed mounting.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• UL
• CSA
• CCC
• EAC
• IEC 60947-5-1

Selection Notes

With three make contacts for parallel command signals alongside one break contact for interlocking or indication, the 3NO+1NC variant suits that specific wiring pattern. Specify the 220-230 V AC coil to match the plant's existing control voltage rather than adding a separate control transformer. The AC coil pulls in within 10–20 ms and draws 30 VA at inrush, dropping to 4.5 VA hold-in, which is the standard figure to size a shared control transformer against when several of these relays switch together.