Allen-Bradley Auxiliary Contacts

Allen-Bradley auxiliary contacts in this collection are add-on blocks for IEC contactors and related interlocks—catalog families such as 100-FA front-mount, 100-SA and 100-SB side-mount, plus 100-KFC and 100-MCA styles. Digits after the series letters usually encode normally open and normally closed counts (for example FA11, SA20, SB10). Confirm whether the failed block mounts on the front or side of the contactor and match the NO/NC combination stamped on the old part. East Coast Compactor stocks frequently requested auxiliary blocks and ships from Northwood NH. ECC is not an authorized Rockwell distributor and does not offer manufacturer warranty claims.