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What are some of the things that can cause chatter in a 8502/36 contactor/starter?

Chattering in a NEMA contactor or starter

Product Line:
NEMA Contactors and Starters

Products sold and used in the United States

Identifying cause of chattering 

Chatter in a starter can be caused by poor contacts in the control circuit, a chattering input device and low voltage.

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