Buy OEM Furnace Start Capacitor in Canada

Start capacitors briefly increase motor starting torque and allow a motor to be cycled on and off rapidly. A start capacitor stays in the circuit long enough to rapidly bring the motor up to a predetermined speed, which is usually about 75% of the full speed, and is then taken out of the circuit, such as by a centrifugal switch that releases at that speed, afterward the motor works more efficiently with a "run capacitor".

Start capacitors have ratings above 70 microfarads (µF), with four major voltage classifications: 125 V, 165 V, 250 V, and 330 V