Genuine Schneider Electric Harmony XB4 series emergency stop push-button, model XB4KS242M5. This robust 22mm mounting diameter button features a red 40mm mushroom head operator with mechanical latching and key release (key number 455). It is equipped with 2 normally open (NO) and 2 normally closed (NC) contacts, suitable for critical safety applications. The chromium-plated metal bezel ensures durability, while IP66, IP67, IP69, and IP69K ratings provide excellent protection against dust and water. Ideal for industrial machinery and control panels requiring reliable emergency shutdown.