Siemens 3RH2921-2DA20 – SIRIUS Auxiliary Contact

Genuine Siemens spare part 3RH2921-2DA20 intended for SIRIUS series contactors as an auxiliary contact / contact block. Used in control circuits for signaling and status transmission, it mounts onto the contactor housing. Suitable as a replacement for SIRIUS 3RH contactors and compatible systems, providing reliable electrical isolation and mechanical connection to the main contactor.