Schneider Electric XB4AEQ4020S1 Push Button Switch

Schneider Electric Harmony XB4AEQ4020S1 Push Button Switch is a red 22 mm panel‑mount pushbutton with two normally closed (2NC) contacts. This compact operator is designed for industrial control panels, enabling two independent NC circuits to be controlled from a single actuator, ideal for stop/interlock logic and basic start/stop control scenarios. As part of the Harmony XB4 family, it shares the familiar 22 mm footprint and supports a range of accessories and contact configurations to fit standard control circuits and panel solutions. The red actuator provides clear, immediate visual signaling on operator interfaces, making it suitable for applications where a conspicuous control input is required within machine controls, automation panels, and other panel-mounted control stations.