Siemens Auxiliary, spring-loaded terminal, 2NCProduct Overview The Siemens SIRIUS auxiliary switch block 3RH2911 2HA02 is designed for front mount attachment to size S00 contactors and relays. It features two normally closed (2 NC) instantaneous auxiliary contacts, spring loaded terminals, and supports integration with Siemens 3RT2 contactors and 3RH2 relay series. With compact dimensions and robust electrical ratings, it provides reliable status feedback and control circuit integration in
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