This Harmony XB4, emergency stop / shutdown 30mm mushroom red button head operates with a latched push-pull mechanism. This emergency stop / shutdown button head also called EMS (Emergency Machine Stop) and EMO (Emergency Off) provides an ergonomic interface for controlling your machines. It is easily installed on compatible complete emergency stop and switching off pushbuttons. It is clearly distinguishable visually at a distance thanks to a clear color and a prominent 30mm mushroom shape. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66. It has a metal bezel, this makes it Ideal for applications requiring high impact and vibration resistance. It is designed to fit in a standard 22mm cutout, ensuring compatibility when installing in pre-existing machinery. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product. Specifications Main Range of product Harmony XB4 Product or component type Head for emergency switching off push-button Device short name ZB4 Bezel material Chromium plated metal Mounting diameter 0.9 in (22 mm) Sale per indivisible quantity 1 Shape of signaling unit head Round Type of operator trigger action and mechanical latching Reset Push-pull Operator profile Red mushroom Ø 30 mm, unmarked Head type Standard Complementary CAD overall width 1.2 in (30 mm) CAD overall height 1.2 in (30 mm) CAD overall depth 2.2 in (56 mm) Net weight 0.172 lb(US) (0.078 kg) Resistance to high pressure washer 1015.3 psi (7000000 Pa) 131.0000000000 °F (55 °C) 0.1 m Mechanical durability 300000 cycles Electrical composition code C7 4 single front mounting C8 4 single and double front mounting C11 3 single front mounting C15 1 single front mounting C10 4 single and double front mounting device presentation Basic element