This Harmony XB4 double-headed pushbutton provides a complete 2 button interface to your machines with a single panel cut-out. Its schematic is distinguishable thanks to clear colors and markings (white “Iâ€‌ on green background and white “0â€‌ on a red background), minimizing errors during initial wiring and later maintenance operations. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP67, IP69, and IP69K ratings, making it ideal for operation in harsh environments. It is easily installed into standard 22mm diameter cut-outs and connected with push-in terminal connections. The XB4BL734155 pushbutton is equipped with 1 normally open (NO) and 1 normally closed (NC) contact, featuring a slow break operation. This product is made from metal,it weighs 108g. High performance International standards & certifications (Marine certification, IP65, Type 4, 13 and 4X). Harmony delivers an innovative and ergonomic design that improves the reliability of panels, machines, and processes.