1Pcs 22mm NC Red Mushroom Emergency Stop Push Button Switch XB2BS542 Overview A compact, easytoinstall emergency stop push button designed to give clear, fast manual shutdown of equipment and control circuits. The XB2BS542 features a large red mushroom head for unmistakable identification and a normally closed (NC) contact that opens the circuit when pressed, providing a straightforward safety interruption. Key benefits Immediate, obvious emergency control: large red mushroom head is visible and easy to actuate in an emergency. Reliable circuit interruption: NC contact opens when pressed, stopping machinery or power to the protected circuit. Spacesaving installation: 22 mm mounting size fits standard panel holes, making retrofits and panels simple. Simple integration: designed for direct use in control panels, operator stations, and machine enclosures. What this product does for you Protects people and equipment by providing a dedicated, easily reachable method to stop operations quickly. Reduces downtime risk with a clearly identifiable, singleaction emergency stop. Simplifies control panel layouts by using a standard 22 mm footprint that works with common enclosures and mounting hardware. Key attributes Model: XB2BS542 Quantity: 1 piece Mounting size: 22 mm (suitable for standard 22 mm panel cutouts) Contact type: NC (Normally Closed) — contact opens when the button is pressed Head style: Red mushroom for visibility and easy actuation Application: Emergency stop / safety interrupt for control circuits Compatibility and usage notes Fits standard 22 mm panel holes for quick installation in control panels and operator consoles. Designed to be wired into the NC safety or stop circuits of machines, motor starters, PLC inputs, and other control systems. Intended as a mechanical/electrical emergency stop interface; ensure wiring and systemlevel safety measures meet local regulations and machine safety standards. Typical applications Industrial machinery: Install on machine control panels to provide operators with a clear, immediate stop control for presses, saws, CNC machines, and similar equipment. Conveyor and production lines: Use at accessible locations along lines to halt material movement quickly in case of jams or safety incidents. Small control enclosures and prototype panels: Useful for electronics labs, test benches, and custom control boxes where a compact, standard emergency stop is required. Simple installation tips Prepare a clean 22 mm panel hole and secure the switch according to panel mounting instructions. Wire the NC contact into the stop/safety circuit following your system wiring diagram and safety requirements. Test operation after installation: pressing should open the NC contact and stop the controlled function; verify reset procedure as required by your system. includes One (1) XB2BS542 22 mm NC Red Mushroom Emergency Stop Push Button Switch For safe, clear, and compact emergency stopping capability, the XB2BS542 provides a straightforward mechanical interface that integrates easily into most 22 mm control panels and stop circuits.