Schneider Electric Harmony 9001KA1 is a 30 mm contact block designed for use with Harmony 9001K/SK/KX selector switches and 30 mm push-button operators. It provides a Form C (changeover) contact arrangement with one normally open (NO) and one normally closed (NC) contact, wired through screw-clamp terminals for straightforward field connections. This KA1 block is compatible with the Harmony 9001K family for adding a dedicated control-contact element to panel-mount control circuits.
