Hubei Dayu Hanguang Vacuum Electric Co.,Ltd.
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Vacuum interrupter for contactor TJ340A
  • Product name:

    Vacuum interrupter for contactor TJ340A

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    Category: VI for contactors
    Model: VITJ12/630-6.3
Product details
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Main Technical Parameter
Rated voltage12KV
Rated current630A
Rated frequency50Hz
Rated short-time Power frequency withstand voltage42kV
Rated lightning impulse withstand voltage75kV
Rated making current6300A
Rated switching current5000A
Limit switching current6000A
Withstand overload current6300A
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 storke100±40N
Circuit resistance at lowest rated contact force≤60μΩ
Storage life20 years
Contacts limit erosion3mm
Weight of movable parts≤0.7kg
MECHANICAL DATA REQUIRED FOR THE MATCHED VACUUM SWITCHGEAR
Clearance between open contacts6±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 force220±10N
Contact bouncing duration at closing operation≤2 ms
Closing and opening non-simultaneity of three-phase contacts≤2 ms

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