... for metallurgy, mining, petrochemical, construc JCZ5-24kV Series indoor single pole AC high voltage vacuum contactor is suitable for metallurgy, mining, ... to control the level of 24kV and below the high-voltage motors, transformers and electrical equipment such as a ... is available for four categories: 160A, 250A, 400A, 630AControl voltage is available for four categories: 110VAC, 110VDC, 220VAC, ...