Patent ID: 6873131
Filing Date: 2005-03-29
Classification: H02H

Abstract:
1. An electric motor selectively connectable to receive one of a plurality of supply voltages, the plurality of supply voltages comprising a low supply voltage and a high supply voltage, the electric motor comprising: a stator comprising a first winding and a second winding; a shaft rotatable about a motor axis; a rotor supported by the shaft for rotation with the shaft relative to the stator; a voltage selection device comprising a first setting and a second setting, the voltage selection device configured to connect the first winding in parallel with the second winding when set to the first setting, and connect the first winding in series with the second winding when set to the second setting; a first motor protector configured to limit current through the first winding and the second winding when an overload condition exists; and a second motor protector configured to limit current through the first winding and the second winding when the voltage selection device is set to the first setting and the electric motor is connected to receive a high supply voltage.