* Siemens 3RH19 21-2FE22 Solid State Compatible Auxiliary Switch Block For Snapping On Front Cage Clamp Connection S0 - S3 Size 2 NO + 2 NC Auxiliary Contacts * Auxiliary switch block for contactor, size S0-S3snap-on mount * 2 NO + 2 NC contacts, cage-clamp connection * UL Listed and CSA certified for quality assurance
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