JCZ Serial Single Pole High Voltage Vacuum Contactor is one-phase, indoor control equipment. It is used in the electricity syste JCZ Serial Single Pole High VoltageVacuum Contactor is 50Hz, one-phase, indoor control equipment. It is used in the electricity system of and under 7.2(12)kV, as well as operating of 200A, 400A, 630A and 800A. It featured in operating switch on & off high voltage ...