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How many auxiliary contacts can be added to an ECN05 enclosed or open AN16/AN19 NEMA size 0, 1 and 2 starter?

A total of eight auxiliary contacts can be incorporated on the starter. The starter already comes with one side mounted NO aux contact installed on the right hand side. One block with two contacts can be added to left side and one top mount block with up to four contacts can be added to the top. To get to eight total auxiliary contacts you will need to remove the existing right hand mounted contact block that came with the starter and replace with a 2 contact side mounted block. 

For contact block options, See Enclosed Control catalog, volume 10, tab 15. Please click on the link below to take you there.

Volume 10, Tab 15