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4-pole 10 amp 240 VAC design enables robust control of industrial machinery
2 NO2 NC screw terminals provide secure and flexible wiring options
Compatible with Siemens 3RH2911-1HA22 for seamless integration
Solid gray construction ensures durability in demanding environments
Summarized by Shop
The Siemens 3RH1911-1HA22 is a SIRIUS auxiliary switch block for contactors and motor starters, providing 2 NO + 2 NC (4-pole) auxiliary contacts for control, interlocking, and signaling circuits. It snap-mounts on the front of the contactor and is suitable for use with SIRIUS 3RT10 size S00 contactors and 3RH1 contactor relays (3RT1015, 3