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4 in stock
This listing is for a USED Siemens 3RV1021-1DA10 motor starter protector with an installed Siemens 3RV1901-1A auxiliary contact block. The combination provides motor branch circuit protection together with additional control and status signaling contacts for automation and motor control applications. Commonly utilized in industrial control panels, machinery, and motor starter assemblies requiring overload protection, short-circuit protection, and auxiliary indication functions.
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