This Harmony XB7, monolithic black key selector switch (key no.455) has 3 positions, operates with a stay-put mechanism with key withdrawal on the center position and screw clamp terminals. It is easily installed into standard 22mm diameter cut-outs and connected to your control circuits with simple screw-clamp connections. It provides a secure manner for authorized staff to switch between process or machine operating modes. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP65, making it ideal for operation in harsh environments. It has a double insulated plastic bezel. Its wide range of operating temperatures from -25°C to 70°C allows versatility in usage of product. It secures the machine and system operation with a key, only available to authorized operators.