Schneider Electric RXM4LB1B7 Harmony RXM 3 A 4 C/O 24 V AC Miniature Plug-in Relay

The Schneider Electric RXM4LB1B7 is a Harmony RXM series miniature plug-in relay with 4 C/O contacts rated 3 A, controlled by a 24 V AC coil. It has no status LED, switches up to 750 VA AC or 84 W DC per its maximum switching capacity, and uses flat faston-type pins for direct plug-in mounting on an RXZE socket.

Technical Specifications

Certifications & Standards

• IEC 61810-1
• CE
• UL 508

Selection Notes

Four C/O contacts let one relay switch four independent circuits (or two changeover circuits with spare poles) from a single 24 V AC coil, useful where the 2 C/O RXM2L relays in the same range run out of contacts. Without a status LED, the relay state has to be read from wiring or an external indicator - the with-LED RXM4LB2B7 part number covers that need instead. At 3 A per contact it is derated versus the 2 C/O family's 5 A rating, the trade-off for the extra contact block.

Applications

Used to fan out a single PLC or control signal to multiple independent field circuits - status relays, multi-zone interlocking, or distributing one command to several contactor coils - on an RXZE plug-in socket.