This ABB EMERGENCY STOP is a compact, non-illuminated emergency stop button with a 40mm mushroom head. It features a twist-to-release mechanism and a single Normally Closed (NC) contact block. Designed for modular applications, it operates reliably within a wide ambient temperature range..The ABB EMERGENCY STOP CE4T-10R-01 is a modular emergency stop button with a 40mm red mushroom head. It features a twist-release function and a 1NC (Normally Closed) contact block. The device is rated for operation between -25 and +70 degrees Celsius and supports a rated frequency of 50/60 Hz. It utilizes screw terminals for connection.