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How many Auxiliary Contacts can be mounted on an ME DC Contactor?

The type ME DC contactor will accept either 2 or 4 auxiliaries depending on the pole configuration. 

The maximum number of auxiliaries a contactor can accept depends on the number of power poles the contactor has and the pole configuration (normally open or normally closed).

A contactor with 1 normally open or 1 normally open/1 normally closed power poles will accept 4 auxiliaries.

A contactor with 2 normally open or 1 normally closed power pole will accept 2 auxiliaries maximum.

Catalog Volume 5 Tab 4 page 72