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        Hubei Dayu Hanguang Vacuum Electric Co.,Ltd.
        CN EN

        Vacuum interrupter for contactor TJ240J

        Model:VITJ7.2/630-6.3

        Category:VI for contactors


        Product details

        1435904529343135.jpg
        Main Technical Parameter
        Rated voltage7.2KV
        Rated current630A
        Rated frequency50Hz
        Rated short-time Power frequency withstand voltage32kV
        Rated lightning impulse withstand voltage60kV
        Rated making current6300A
        Rated switching current5000A
        Limit switching current6000A
        Withstand overload current5000A
        Electrical endurance AC-3250000 times
        Electrical endurance AC-410000 times
        Mechanical endurance300000 times
        Closing force due to bellow and atmosphere70±30N
        Force required to hold contacts open at full storke120±40N
        Circuit resistance at lowest rated contact force≤60μ?
        Storage life20 years
        Contacts limit erosion3mm
        Weight of movable parts≤0.4kg
        MECHANICAL DATA REQUIRED FOR THE MATCHED VACUUM SWITCHGEAR
        Clearance between open contacts5±1 mm
        Contact connection stroke3±0.5mm
        Average opening speed0.4-0.5m/s
        Average closing speed0.15-0.25m/s
        Rated added extemal contact final force110±10N
        Contact bouncing duration at closing operation≤2 ms
        Closing and opening non-simultaneity of three-phase contacts≤2 ms

        Relevant information