When Switched on a capacitor can function as short circuit element. [he capacitor inrush or charging current magnitude depends on AC voltage at turn on and on the impedance of connection cable and power supply transformer. In case of Individual capacitor load charging peaks that are 30 times greater than rated capacitor current. In case of multi stage capacitor the inrush current can exceed 180 times rated capacitor current. Such strong current occur from power supply network and capacitor is already connected. Such inrush current is undesirable since main contacts of standard duty contactors are likely to weld.

ABN capacitor duty contactor Is designed to meet the requirements of capacitor duty application.