Schneider Electric Harmony Series Emergency Stop Push Button Head, Twist Release, Red Plastic Mushroom, 22mm Cutout ZB4BS864

Schneider Electric Harmony Series ZB4BS864 Emergency Stop Push Button Head features a twist release red mushroom operator designed for effective and safe manual emergency stop control in industrial automation systems. Its plastic push button with chromium-plated metal bezel is built for durability and premium tactile response.

This push button head is intended for front-panel mounting with a 22mm cutout diameter, providing easy integration with standard front-mounted contact blocks. The trigger-latching action ensures the push button remains engaged until intentionally reset by twisting, offering secure and fail-safe emergency shutdown capabilities.

Its robust design features IP66, IP69, and IP69K ingress protection ratings, making it ideal for harsh washdown production line environments and outdoor industrial use where protection against dust, high-pressure water jets, and steam cleaning is mandatory.

The ZB4BS864 can withstand mechanical endurance of up to 300,000 cycles and is certified to endure shocks up to 50 gₙ and vibrations at 5 gₙ, ensuring reliability under rigorous operating conditions. It is suitable for marine and offshore equipment applications requiring recognized certifications as well as machine guard door emergency shutdown installations.

The emergency stop push button head supports ambient operating temperatures from minus 40 to plus 70 degrees Celsius and complies with Class I electrical shock protection per IEC 61140, assuring operator safety in grounded panel installations.

Designed to survive extreme high-pressure washdowns up to 7,000,000 Pascals at 55 °C from a distance of 0.1 meters, it is the preferred choice for demanding industrial, manufacturing, marine, and water treatment environments.

Designed for 22mm cutout panel mounting. Red mushroom-style plastic push button with chromium-plated metal bezel. Trigger-latching action with twist-to-release reset. IP66, IP69, IP69K ingress protection for harsh washdown applications.

Mechanical endurance rated for 300,000 cycles. Shock and vibration rated for industrial environments. Suitable for marine, offshore, and machine guard door emergency shutdowns. Operates from −40 to 70 °C ambient temperature.

Class I electrical shock protection per IEC 61140. Survives 7,000,000 Pa high-pressure washing at 55 °C.

Schneider Electric Harmony Series Emergency Stop Push Button Heads are widely used in industrial control panels, safety systems, and emergency shutdown applications to enhance safety and compliance. Discover more Push Button Heads and emergency stop controls in the Switches & Sockets category on EnvMart.