This Harmony 9001SK, black selector switch with C cam has 3 positions, operates with spring return from left to center position mechanism. It has a double insulated plastic bezel and uses screw-clamp terminals. This selector switch provides a versatile interface for controlling your machines. It is easily installed into a standard 30mm diameter panel cut-outs and connected to control circuits with simple screw-clamp connections. It provides an effective manner to set your machine in various operating modes. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66, making it ideal for operation in harsh environments. Impact and corrosion resistant plastic body ensures product continues to operate even after severe accidents.