This Harmony XB4 double-headed modular push button has 1 red, 1 green button and 1 central white pilot light, operates with a spring return mechanism, is supplied with 24V AC/DC. It has a metal bezel. It is marked with “I” and “O” symbols. This illuminated push button provides an ergonomic and visual interface for controlling your machines. It is easily installed into standard 22mm diameter panel cut-outs and connected to control circuits with classic screw-clamp connections. It is clearly distinguishable visually at a distance thanks to a bright and long lasting LED illumination. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66 / IP67 / IP69 / IP69K, making it ideal for operation in harsh environments.