Schneider Electric 9001KA2 Contact Block

Schneider Electric Harmony 9001KA2 is a 30 mm panel-mount contact block that adds a single normally open (NO) contact to compatible pushbutton assemblies. Specifically designed for Harmony 9001K family operators, it fits 30 mm pushbuttons of types K, SK, and KX and provides an isolated SPST-NO contact to extend a control circuit. The KA2 block carries one NO contact and uses screw-terminal wiring, which simplifies field wiring and reduces install time when adding an auxiliary signaling path or interlock to a start/stop sequence. As part of the 9001K family, KA2 is the NO variant, while KA3 is the normally closed counterpart, giving designers a straightforward way to tailor contact configurations without changing the base switch. This lightweight, compact accessory preserves the footprint of the 30 mm system and integrates with existing Harmony components to enable simple, reliable signaling in industrial control panels.