3RH2122-1BB40 SIRIUS 3RH21 contactor relay, 2 NC+2 NO, 24 V DC

Contactor relays are switchgear for control and auxiliary circuits and are used for tasks such as controlling, signalling and locking switchgear and switching devices. It goes without saying that the SIRIUS 3RH2 contactor relays feature standard-compliant terminal markings and a time-saving and cost-saving connection technology. This means that they are ideally suited to practical requirements. The 3RH2 contactor relays and the S00 motor contactors are the same size and have the same design, which represents a major benefit particularly regarding accessories.

They are designed for AC or DC operation and are available with screw technology or spring-loaded technology. The basic version of the contactor relays is 4-pin and can be expanded to eight pins using snap-on auxiliary switches.