An
starter and protector for an energy-saving integral single-phase
alternating current motor, belonging to cold compressor motor protecting equipment technology field, includes a housing, a cover, a motor protector mounted in the housing, a motor
starter mounted on the housing, and a plug-in sheet mechanism composed of a L plug-in sheet, a N plug-in sheet and an earthing plug-in sheet. The motor
starter includes a first pin, a second pin and a
positive temperature coefficient
thermistor, and is characterized in that the two ends of the
positive temperature coefficient
thermistor are equipped with a
supporting wall separately, wherein the pair of the supporting walls being parallel with each other, a rostellum being arranged on the basic centered position of the upper side of each
supporting wall, the two bottom sides of the
positive temperature coefficient
thermistor contacting the rostellum, and the two sides of the positive
temperature coefficient thermistor holding with the first and the second pins separately. The invention has well energy-saving effect, and has substantial deflated volume, which being help to save the material for manufacturing the positive
temperature coefficient thermistor.