Description Instead of the traditional CJ-19 AC contactor, can connect grid in voltage pass zero and current pass zero disconnect, switching capacitor without surge-current impact, prevent high voltage; full-wave conduction, no harmonic, and noiselessness. With SCR control technology, integrate thyristor, trigger board, fan, temperature control, wring terminal, easy for installation. It is the ultimate solution in power factorcompensation system. Especially for serious harmonic working conditions, max provide 0.02s response time.