Supply and protection unit for a hermetic compressor

A supply and protection unit for connecting to an electrical power supply source the windings of an electric motor of a hermetic compressor of a refrigerator, a control thermostat being interposed between said windings for regulating the supply of power, said unit comprising:

• an electrically insulating support body adapted to be fixed to the casing of the compressor, said support body being provided with cavities opening at one of its faces intended to face towards the compressor casing,
• a first and second electrical device slidably and removably inserted in a first one and a second one of said cavities, respectively;
• said first device being a thermally operated protection switch and said second device being a resistor with a positive temperature coefficient (PTC), wherein the protection switch is disposed in said first cavity so that, with the body fixed to the compressor casing, a heat sensitive face of the switch is applied to the casing itself, and
• connection means for the electrical connection of an electrical power supply source to said windings of the electric motor of the compressor and to said control thermostat of the compressor.