The Schneider Electric XB4BS8442 is a complete emergency stop push-button from the Harmony XB4 range, intended for 22 mm panel mounting in industrial control and signalling applications. It features a red 40 mm mushroom head with a latching twist-to-release mechanism and a 1NC contact block.

• Reference: XB4BS8442
• Range: Harmony XB4
• Product type: Emergency stop push-button
• Model: Zamak
• Mounting diameter: 22 mm
• Head colour: Red
• Head diameter: 40 mm
• Contact configuration: 1NC (normally closed)
• Mechanism: Latching, release by turning (twist-to-release)
• Body material: Zamak (zinc alloy die-cast)