This Schneider Electric Harmony 9001K modular illuminated flush green push-button is supplied with a full guard. It has a metal bezel and is supplied with a 110Vac transformer and fits in a 30mm hole This illuminated push-button with transformer and full guard provides an ergonomic and visual interface for controlling your machines. It is easily installed into a standard 30mm diameter panel cut-outs and is easily connected to control circuits. It is clearly distinguishable visually at a distance thanks to its illuminated head and clear color. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66, making it ideal for operation in harsh environments.Metal bezel. Ideal for severe environments, especially applications requiring high impact and vibration resistance. Simple modular design facilitates post installation servicing, modification and adaption of machines by non-specialists. Designed to fit in a standard 30mm cutout, ensuring compatibility when installing in pre-existing machinery. Simple spring return mechanism is rugged and durable: high lifetime, less maintenance and replacement. Impact and corrosion resistant metal bezel and body ensures product continues to operate even after severe accidents. High performance: International standards & certifications (Marine ABS certification, IP66, Type 1, 2, 3, 3R, 4, 12 and 13). High brightness for easy identification of function and operation mode, even in brightly lit environments. The plastic guard is ideal for protection of control and signaling units in harsh environment.