Schneider Electric Harmony Series Turn to Release Illuminated Emergency Stop Push Button, Surface Mount, 22 XALK178W3B140E

Schneider Electric XALK178W3B140E Harmony Series Turn to Release Illuminated Emergency Stop Push Button offers robust safety control designed for industrial and manufacturing environments operating at 24V AC. The surface mount design with a 22 mm cutout diameter allows flexible installation while maintaining accessibility.

This emergency stop push button features a turn to release actuation mechanism that prevents accidental activation, enhancing operational safety. Its illuminated red polycarbonate push button ensures clear visibility in low light conditions or emergency situations, supporting fast response times.

The device is constructed from durable polycarbonate housing rated for ingress protection at IP66, IP67, and IP69K, making it suitable for harsh industrial or outdoor environments resistant to dust, water, and mechanical impact.

With a 1 Normally Open (NO) and 1 Normally Closed (NC) contact configuration, this push button delivers reliable switching necessary for critical safety circuit integration. The dimensions of 68 mm depth and length, combined with a 96 mm width, provide a compact and ergonomic solution.

It meets international safety and electrical standards including CSA C22.2 No 14, JIS C 4520, EN/IEC 60947-5-1, EN/IEC 60947-5-4, EN/IEC 60947-1, and UL 508, reaffirming its compliance and reliability in demanding industrial applications.

Common applications include automated production lines requiring immediate emergency stop capability, machinery operation in harsh environments, safety circuits to minimize risks, vehicle control systems, and flexible control interface setups. The turn-to-release mechanism provides an intentional reset action to reduce inadvertent operation, ensuring safety continues after emergency intervention.

Turn to release actuation prevents accidental activation. Illuminated push button enhances visibility in dim and emergency conditions. Robust polycarbonate housing with IP66, IP67, and IP69K ratings. Surface mount design with 22 mm cutout diameter for versatile installation.

1NO/1NC contact configuration ensures reliable safety switching. Compact dimensions of 68 mm depth, 68 mm length, and 96 mm width. Certified to multiple international standards including UL 508 and IEC standards. Ideal for industrial, manufacturing, automotive, and control system emergency stop applications.

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