Specification :

Motor Running Capacitor is used in water pump, auto gate motor, air compressor and other single phase motor running applications in continuous or intermittent modes

Why you need motor running capacitor?
The main purpose of the motor run capacitor used in single phase motor applications, is to generate a rotary field that is out of phase with the supply field so that emf can be produced to start the motor. Leaving the capacitor in circuit after the motor has run up to speed rather then disconnecting it, will not only increase the power output and stalling torque but also improve the efficiency and power factor of the motor.