The INCJ-19 series switching capacitor contactor (hereinafter referred to as the contactor) is mainly used in AC 50Hz or 60Hz power circuits with a rated working voltage of up to 380V. It is designed for switching low-voltage reactive power compensation equipment or connecting and disconnecting low-voltage parallel capacitors. The contactor is equipped with inrush current suppression devices, which effectively reduce the impact of inrush currents on the capacitors during closing and suppress overvoltage during disconnection.