This Schneider Electric Harmony XB5 double-headed modular push-button has 1 green, 1 red button and 1 central white pilot light, operates with a spring return / impulse mechanism and uses screw-clamp terminals. It has 1 x NO + 1 x NC contacts and a plastic bezel. It is marked with "I" and "O" symbols. This double-head button provides a complete 2 button interface to your machines with a single panel cut-out. It is easily installed into a standard 22mm diameter cut-outs and connected with simple screw-clamp connections. Its schematic is clearly distinguishable thanks to clear colors and markings, minimizing errors during initial wiring and later maintenance operations. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66/IP67/IP69/IP69K and IP69K, making it ideal for operation in harsh environments.Plastic bezel. Ideal for applications requiring good resistance to chemical agents and/or double electrical insulation. Simple modular design facilitates post installation servicing, modification and adaption of machines by non-specialists. Designed to fit in a standard 22mm cutout, ensuring compatibility when installing in pre-existing machinery. High performance: International standards & certifications ( Marine certification, IP66 IP67 IP69 IP69K, Type 4X). Wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product. Two function in a single unit: ideal for start/stop, forward/reverse, fast/slow controls in processes and machines. Vibration resistant screw clamp connection terminals ensure high vibration resistance making product suitable installation on high impact machine.