Capacitors

Motor capacitors store an electrical charge briefly to increase torque and improve the performance and efficiency of a motor. Start capacitors provide additional torque during motor beginning and then are removed from the circuit once the motor reaches operating speed. Run capacitors assist the motor in maintaining a constant charge while in operation. By balancing working power and supply power, power factor correction capacitors reduce motor power consumption caused by large inductive loads. Motor capacitors are generally used to power motors in HVAC applications like fans, blowers, and compressors, but they're also found in pumps, conveyors, and machine tools.