Siemens 3RH2131-2AK60 Three-Phase Magnetic Contactor

Siemens 3RH2131-2AK60 is a four-pole auxiliary contactor from the Sirius 3RH2 family designed to switch three-phase power with a coil rated at 110 V AC (50 Hz) or 120 V AC (60 Hz). It provides 3 normally open contacts and 1 normally closed contact (3 NO + 1 NC) in a compact S00 frame and features spring-loaded terminals for secure wiring. The device is rated for up to 690 V and a load current of 10 A, making it suitable for motor-control and automation tasks such as conveyors, pumps, and fans when used with a compatible main contactor. The coil voltage specification is 110 V AC at 50 Hz and 120 V AC at 60 Hz, and Siemens lists a mechanical service life of approximately 30 million switching cycles, underscoring suitability for frequent operation in industrial control panels.