Telemecanique 40mm Key Release Red Mushroom Head Emergency Stop

The Telemecanique ZB4BS944 is a red mushroom emergency stop head with key release reset. Featuring a rugged metal bezel and 40mm button, it is designed for safety-critical industrial control panels and ensures secure shutdown with authorized reset via Key 455.

Features include:

• Emergency stop button head
• Red mushroom actuator, 40mm diameter
• Trigger action with mechanical latching
• Key-release reset (Key no. 455 included)
• For 22.5mm panel mounting
• Chromium-plated metal bezel – durable and impact resistant
• Panel-mountable in Harmony XB4 or XAPK enclosures
• Clearly visible red button for immediate recognition
• Compatible with screw-clamp contact blocks
• High resistance: IP66/IP67/IP69/IP69K
• Operating temperature range: -40°C to +70°C
• Designed per international safety standards for industrial emergency switching