Safety stop release by rotation NC+NO F40 XB4BS8445

Safety stop button with twist release NC+NO F40 XB4BS8445

This red safety button, also known as an EMS (Emergency Machine Stop) or EMO (Emergency Off), is a reliable component of every workstation requiring immediate machine shutdown. Designed for mounting in 22.5 mm diameter holes, it is an integral part of safety systems in industry. Its characteristic mushroom shape and color ensure quick identification in emergency situations.

Construction and application

The XB4BS8445 button from the Harmony XB4 series by Schneider Electric is a complete, modular control element. Thanks to the latching mechanism with twist release, it ensures safe and controlled machine stopping. Rotating the mushroom head after activating the button is a safety requirement – it prevents accidental restarting of the device without first removing the cause of the hazard. The 1NO+1NC (normally open and normally closed) contact configuration allows for flexible use in various control and safety circuits.

Durability and protection

The construction of this button is designed to work in harsh industrial conditions. The metal drive and housing guarantee high resistance to impacts and mechanical damage. The IP66 protection rating provides resistance to dust and water ingress, making it an ideal solution for applications in humid or dusty environments. Thanks to this, it can be used without fear even in the most demanding industrial applications.

• Durable construction: Metal drive and housing ensure long-term reliability even in harsh working conditions.
• Resistance to external factors: IP66 protection rating guarantees protection against dust and water.
• Safety of use: Latching mechanism with twist release prevents accidental restarting of the machine.
• Flexibility: 1NO+1NC contact configuration allows integration with various control systems.
• Easy installation: Designed for 22.5 mm diameter holes, which facilitates installation and replacement.
• Cost reduction: Common accessories with the XB4/XB5 series (contacts, light modules) allow for optimization of control system maintenance costs.