JCZ7（G）12kV 400A Vacuum ContactorJCZ7-12 series AC Vacuum Contactor 3 polesis suitable for the AC electric system, of which the frequency is 50~60 Hz, rated working voltage of 12 kV (or 7.2 kV), for direct or remote on-off control of the main circuits.This series of vacuum contactors main used below the rated current from 160A-630A power network systems for remote making and breaking and frequent starting and control of AC motors, transformers and capacitor banks and other occasions.NameUnitValueMain circuitRated working voltage (Ue)kV12Rated working current (Ie)A400,630Rated frequency (fr)H...