Schneider Electric XB4BW3345 Illuminated push button, Harmony XB4, green flush, 22mm, spring return, 1NO + 1NC, 220...240V. This Harmony XB4 plain lens illuminated modular green push button operates with a spring return / impulse mechanism, is supplied with 220V to 240V AC, uses an integral transformer with Integral LED. It has a metal bezel. This illuminated push button with integral transformer provides an ergonomic and visual interface for controlling your machines. It is easily installed into a standard 22mm diameter 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 BA9s base and 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. Harmony delivers an innovative and ergonomic design that improves the reliability of panels, machines, and processes. Official Schneider characteristics include Range of product: Harmony XB4; Product or component type: Illuminated push-button; Device short name: XB4; Bezel material: Chromium plated metal; Fixing collar material: Zamak; Mounting diameter: 22.5 mm; Sale per indivisible quantity: 1; Head type: Standard. Harmony XB4 devices use a chromium-plated metal bezel and are designed for robust panel operation where clear manual control, indication or machine safety interfaces are required.