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Decades of Equipment Knowlege.






2 in stock
This listing is for a NEW Siemens 3RV1901-1A. The auxiliary contact block expands the signaling and control capabilities of compatible Siemens motor starter protectors by providing one normally open and one normally closed auxiliary contact. It is used for status indication, interlocking, control logic, and monitoring functions within industrial control panels and motor control systems.
Decades of Equipment Knowlege.
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