Schneider Electric Harmony Series Key Release Emergency Stop Push Button Head 22mm Cutout Diameter ZB4BS944

Schneider Electric ZB4BS944 is a Harmony Series, Emergency Stop Push Button Head designed with a 22mm cutout diameter, featuring key release actuation for enhanced safety in industrial environments. This robust push button head incorporates a high-visibility red mushroom cap made of durable plastic, optimized for fast emergency shutdown to protect personnel and equipment.

Designed for demanding industrial, manufacturing, and automation applications, the button head offers comprehensive ingress protection with IP66, IP67, IP69, and IP69K ratings, ensuring resistance to dust, water jets, and high-pressure washdowns up to 7,000,000 Pa. Its mechanical durability is rated for 300,000 cycles, providing consistent performance in critical safety circuits.

The key release mechanism requires a specific key to reset the button after activation, significantly reducing accidental restarts and ensuring operator intent verification. The device is certified with the Green Premium mark, underscoring Schneider Electric's commitment to sustainability and compliance with environmental standards.

This push button head is ideal for integration in control panels, automation systems, and machinery requiring emergency stop functionality in wet and challenging environments. Its operational temperature range from -40°C to 70°C makes it adaptable to various harsh industrial conditions.

Durable plastic mushroom-style emergency stop push button for high visibility and fast activation. Key release actuation prevents accidental resets and enhances operator safety. IP66 / IP67 / IP69 / IP69K ingress protection for reliable operation in wet and dusty environments.

Mechanical durability ensures up to 300,000 reliable operations. Certified Green Premium for environmental compliance. Operates effectively in temperature extremes from -40 to 70 degrees Celsius. Suitable for safety circuits in manufacturing and industrial automation.

Mounting diameter of 22.5mm ensures compatibility with standard panel cutouts.

Schneider Electric products are trusted globally in industrial automation, manufacturing, electrical systems, and environmental safety applications. Explore more from the Harmony Series and Schneider Electric range on EnvMart for high-performance switchgear and control components.