Schneider Electric ZB4AEO3870G1 Push Button Switch

Schneider Electric ZB4AEO3870G1 is an illuminated push button switch in the Harmony XB4 series, with a 22 mm mounting diameter and spring-return operation for manual control and signaling in industrial automation. It provides a 1 NO + 1 NC contact configuration, an integral LED light source, and panel-mount installation with a chromium-plated metal bezel, rated for 110–120 V AC. The unit carries IP66, IP67, IP69, and IP69K protection and adheres to IEC 60947-5-1 and UL 508 standards. Commonly installed in machine control panels, conveyor systems, packaging equipment, and production lines for replacement, retrofit, and control panel maintenance. Common replacements include XB4BW33G5, ZB5AEO3870G1, and XB5AW33.