This Schneider Electric Harmony 9001SK modular recessed push-button with extended guard and set of 7 color caps operates with spring return mechanism. It has a double insulated plastic bezel and 1 changeover contact. It fits in a 30mm hole. This recessed push-button with extended guard and set of 7 color caps provides an ergonomic interface for controlling your machines. It is easily installed into a standard 30mm diameter panel cut-outs and connected to control circuits with classic screw-clamp connections. Its schematic is clearly distinguishable thanks to clear colors, minimizing errors during initial wiring and later maintenance operations. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66, 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 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 plastic 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, 4X, 12 and 13). Wide range of operating temperatures from -25C to 70C allows versatility in usage of product.