The XB4BS8445 is a complete emergency stop push-button from the Harmony XB4 range, designed for trigger action and mechanical latching. It features a 40 mm red mushroom head and is reset by a 'turn to release' action, mounting into a standard 22.5 mm panel cut-out. This unit includes one normally open (NO) and one normally closed (NC) slow-break contact with silver alloy material. Built for durability and reliability, it has a mechanical lifespan of 300,000 cycles and a rated insulation voltage of 600V. Its high degree of protection (IP66, IP67, IP69, IP69K) and wide operating temperature range make it suitable for demanding industrial environments and safety applications.