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    12kV Vacuum Circuit Breaker, 1250A, 2000A

    12kV vacuum circuit breaker is an indoor three-phase AC high-voltageswitchgear of 50 Hz and rated voltage 12kV. The rated current is 630A, 1250A, 1600A, 2200A for your choice. 50 rated current breaking times, Contactor torque is 3200N, 100N.
    SKU: ATO-VCB-12kV
    Free Shipping Worldwide
    Delivery date: 6-12 days

    Mechanical life 20000 times, rated current breaking times 50, rated back-to-back capacitor bank breaking current 400A. Contactor torque 11mm 1mm, weight 130kg. 


    • The entire structure of this product presents the integrated installation ofswitch body and operating mechanism.
    • lt adopts the composite insulation structure, withhigh insulation level,no pollution or explosion danger. lts operating mechanism is ofspring energy-storage type, which be operated with alternating current or by manual.


    Medol ATO-VS1(ZN63)
    Rated voltage 12kV
    Weight 130kg
    Rated insulation level  1 min line frequency withstand voltage 42kV
    rated thunder impulse withstand voltage 75kV
    Rated current (Optional) 630A, 1250A, 1600A, 2000A
    Rated short circuit breaking current (Optional) 20kA, 25kA ,31.5kA, 40kA
    Rated short circuit closing current (Optional) 50kA, 63kA, 80kA, 100kA
    Rated peak withstand current (Optional) 50kA, 63kA, 80kA, 100kA
    Rated short circuit withstand current(effective value) (Optional) 20kA, 25kA, 31.5kA, 40kA
    Rated current breaking times  50
    Rated short-circuit duration  4S
    Rated operating sequence  O-0.3s-CO-180s-CO 
    Mechanical life  20000 
    Rated single capacitor bank breaking current  630A
    Rated back-to-back capacitor bank breaking current  400A 
    Contactor torque  11mm  1mm 
    Contact stroke  3mm  0.5mm  
    Three-phase opening synchronization  ≤2ms 
    Closing bounce time  ≤2ms 
    Phase-to-phase distance    210mm  1.5mm(275mm   1.5mm) 
    Contact pressure of closing contact  3200N   100N
    Average break brake speed  0.9m/s~1.2m/s 
    Average close brake speed  0.55m/s~0.8m/s 
    Breaking time  20ms~50ms 
    Closing time  35ms~70ms  
    Accumulative Allowable Wear Thickness of Dynamic and Static Contacts  3mm 

     Dimensions (Unit: mm)



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