Emergency push button head with key NR455 Ø40 red plastic Harmony XB5 ZB5AS944

Emergency stop button head – safety and reliability in industry

This red emergency stop button head with key, from the Harmony XB5 series by Schneider Electric, is a key element of safety systems in machines and industrial installations. Designed for the immediate stopping of equipment in hazardous situations, it ensures a rapid response and minimizes the risk of accidents. The key lock design additionally protects against accidental or unauthorized restart after intervention.

Construction and application

The head is designed for mounting in standard 22.5 mm diameter cutouts. Its distinct red color and large mushroom head diameter (40 mm) ensure excellent visibility even in difficult lighting conditions. Made of durable plastic, it is resistant to mechanical damage, chemicals and weathering – this is confirmed by the high degree of protection IP66. Easy connection to contact blocks via simple screw connections facilitates installation and integration with existing control systems.

• Application: ideal for workstations requiring a high level of safety, such as production lines, numerically controlled machines (CNC), material transport systems or electrical devices.
• Key lock: prevents accidental or unauthorized restart of the machine after an emergency stop – increases safety during servicing or repair.
• Durability: resistance to impact, dust, water and vibration guarantees reliable operation even in demanding industrial conditions.
• Easy installation: compatibility with standard cutouts (22.5 mm) and simple screw connections significantly reduce installation time.
• Wide temperature range: the ability to operate in a temperature range from -40°C to +70°C ensures reliability in various environments.

Characteristics and benefits

The Harmony XB5 emergency stop button head is not only a safety element, but also an investment in reliability and work efficiency. Its solid construction and high quality workmanship guarantee long-term use without frequent replacements. Thanks to the IP66 certificate, it is resistant to dust and water ingress, which allows it to be used both indoors and outdoors. In addition, the Harmony XB5 series is characterized by a wide range of accessories, which allows you to tailor the solution to individual application needs. By choosing this product you get the certainty of safe and efficient machine operation and protection of the operating personnel.