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Asea Brown Boveri RK 211 187-AH Relay
Asea Brown Boveri RK 211 187-AH Relay
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Description:
ABB RK211-037-AH auxiliary relay, part of the RK211 family, is designed to mount with a matching ABB relay socket to provide an extra set of control contacts for ABB contactor assemblies. ABB's catalog identifies RK211-037-AH explicitly as an auxiliary relay; Radwell’s listing for RK211-037-AH notes it as an auxiliary relay and records a weight of 1.74 lb. The RK211 family includes multiple AH-suffix variants with differing coil voltages and contact configurations, so verify the exact data sheet for your specific part number; for example, RK211066-AH is listed with a 48 VDC coil. Commonly used to expand signaling capacity and interlock functions in industrial control panels within ABB-based systems.
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