Industrial RXME1 RK 221 052-AD Plug-in Relay

ABB RXME1 RK 221 052-AD is a 24V DC plug-in auxiliary relay from the COMBIFLEX family, designed for compact, high-reliability signaling and control within protection schemes and motor-control circuits. It features four Form C contacts (4PDT) and heavy-duty bridge contacts, delivering multiple switching paths with enhanced current-handling capability in a single plug-in package used as an auxiliary or output relay in ABB control assemblies. The coil is 24V DC and the unit, weighing about 0.25 kg, remains compact for installation in standard industrial control cabinets and relay racks, enabling rapid replacement without rearranging surrounding components. Typically deployed as a heavy-duty compact tripping relay or as an auxiliary output in protective-relay configurations, the RXME1 RK 221 052-AD is designed to withstand demanding industrial environments while providing reliable, multi-channel switching within a single device.