The CJ19 series switching capacitor contactor is specifically designed for reactive power compensation circuits with AC voltage ranging from 50Hz (60Hz) to 380V. It can effectively reduce the impact of closing inrush current on the capacitor and reduce the operating overvoltage at the moment of opening and closing. It can replace the original switching device consisting of one contactor and three reactors.

The CJ19 series switching capacitor contactor is a derivative production of the CJX2 contactor, consisting of a CJX2 AC contactor, a pre charged contact group, and a current limiting resistor. It can suppress the surge current of the capacitor during connection, effectively reducing the impact of the surge current on the capacitor and suppressing overvoltage during disconnection.