Part identity and deployment context
The Siemens 3RH1344-1BM40-ZW95 is a SIRIUS contactor relay in size S00, configured with 4 normally-open and 4 normally-closed contacts, a DC 220 V coil, and screw-type terminals. The multi-pack quantity is 102 units. This is a control-circuit switching device — it pilots larger contactors or handles moderate loads directly within a panel, not a main power contactor.