This Harmony XB4 illuminated modular red push button operates with a spring return mechanism, is supplied with 220V to 240V AC, and uses an integral LED. It has a metal bezel. 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/IIP67/IIP69/IIP69K, making it ideal for operation in harsh environments.