CKJ20 Series Low Voltage Vacuum Contactor  160A to 1000A 1140V CKJ20 Series Low Voltage Vacuum Contactor  160A to 1000A 1140V CKJ20 Series Low Voltage Vacuum Contactor  160A to 1000A 1140V CKJ20 Series Low Voltage Vacuum Contactor  160A to 1000A 1140V CKJ20 Series Low Voltage Vacuum Contactor  160A to 1000A 1140V CKJ20 Series Low Voltage Vacuum Contactor  160A to 1000A 1140V