Siemens 3SU1100-1HB20-1CG0 Soft Starter Module

Siemens 3SU1100-1HB20-1CG0 is a 22 mm red emergency-stop mushroom pushbutton (Not-Halt) with one normally closed contact (SPST-NC) and screw terminals, designed to quickly interrupt a machine’s control circuit. The device is positive-latching and uses a rotate-to-unlatch reset action, compliant with EN ISO 13850 safety standards for emergency-stop devices. It is rated for up to 10 A at 500 V, making it suitable for typical control circuits in industrial equipment such as conveyors, presses, and packaging lines, where a clearly visible, reliable stop is essential. The 22 mm front-diameter actuator is intended for panel mounting on standard control panels, providing immediate recognition as an emergency-stop control. Wiring is accomplished via screw terminals for secure connections, and the compact form factor supports integration into crowded control cabinets. As part of Siemens’ Not-Halt E-stop offering, this switch is commonly specified where a single, fail-safe stop contact is required to interrupt the circuit on demand.