ABB RXSF1 RK271019-AS Auxiliary Relay 220-250V

ABB RXSF1 RK271019-AS Auxiliary Relay 220-250V is a compact signaling relay from ABB's RXSF1 family, designed to interpose control signals in industrial automation and SCADA interfaces. The coil is a DC type rated for 220–250 V, enabling energization from standard high-voltage control circuits and providing reliable, fast signaling in automated systemenvironments. The RK271019-AS designation identifies this specific 220–250 V variant of the RXSF1 auxiliary relay, a model commonly listed by ABB and distributors under the description “Auxiliary Relay 220-250V.” In distributor listings, this model is noted as part of the RXSF1 line and is sometimes marked as discontinued, reflecting its older placement in ABB’s signaling relay lineup. This relay serves applications requiring a robust voltage-operated signaling path within control panels and automation systems, acting as a simple interposing device to interface field signals with logic and monitoring circuits.