ABB SK 616 001-B is a front-mounting auxiliary contact block designed as an accessory for ABB 3R25 and 3R40 motor starters. It provides a single normally closed (1 NC) contact for feedback or interlocking in motor-control circuits. The block is rated for up to 660 V insulation voltage and 10 A nominal current (AC11). It mounts on the front of the operator assembly as part of ABB's SK 616 family.
