this is a 750mv millivolt system

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Siemens Industrial Controls 3RV2901-1A Aux Switch 326010-701 this is a 750mv millivoltThe Siemens 3RV2901 1A is a lateral auxiliary switch engineered for high reliability signaling within the SIRIUS modular system. Built specifically for Siemens 3RV2 motor starter protectors, this block features a 1 NO + 1 NC (Normally Open Normally Closed) contact configuration, enabling simultaneous status feedback and control circuit interlocking. Designed for industrial efficiency, the unit utilizes screw terminals for secure conductor termination