ELECTRICAL SWITCH UNIT AND ELECTRICAL DEVICE COMPRISING SAID ELECTRICAL SWITCH UNIT

An electrical switch unit for use with a variable speed electrical device to control operation of a DC motor of the electrical device, the electrical switch unit comprising: a housing which houses a pair of electrical switching contacts, and, an actuator operably connected with at least one of the pair of electrical switching contacts, a signaling module associated with the electrical switch unit comprising signaling circuitry for sensing the movement of the actuator and outputting a signaling module signal indicative of the sensed movement or position of the actuator; a power module comprising at least one power switching device for controllably supplying power from the DC power source to the DC motor; a control module for receiving the signaling module signal, and for outputting a control module signal to control the power module wherein the at least one power switching device controllably supplies power from the DC power source to the DC motor to allow operation of the DC motor at a speed corresponding to the sensed movement or position of the actuator.