This Harmony XB7, monolithic black selector switch has 3 positions, operates with a spring-return-to-center mechanism 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 an effective manner to give your machine multiple different inputs.::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.