These capacitors briefly shift phase on a start winding in a single phase electric motor to create an increase in torque. They possess a very large capacitance value for their size and voltage rating. As a result, they are only intended for intermittent duty. Because of this, they will fail after being left energized for too long due to a faulty starting circuit on a motor.
Our replacement capacitors come with resistor. The resistor is used to bleed of residual voltage.
Unlike Run Capacitors, they are only is energized briefly during start of the compressor.