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    12KV VCB with Fuse combination12KV VCB with Fuse combination
Product Details

12KV VCB with Fuse combination

VF(R)-12 indoor embedded high-voltage alternating-current vacuum load switch –fuse combination (vacuum load switch) is a new-generation vacuum switching equipment developed based on unique design ideas to meet the market demand. It is widely used for indoor armored air-insulated switch cabinets. In normal conditions, it can operate within its technical parameters in any grid of the specified voltage level safely and stably.


Normal operating conditions

●  Ambient temperature: - 40℃~+40℃ (below 35°C within 24 hours)

●  Relative humidity: ≤95% (daily average) or ≤90% (monthly average)

●  Altitude: ≤ 1000m


Item Unit Reference value
VF-12/T630-20
Vacuum load switch
VFR-12/T125-50
Vacuum load
switch-fuse combination
VFH-12/T630-25
High breaking

capacity vacuum

switch

VFHR-12/T125-50
High breaking
capacity vacuum

switch-fuse 

combination

Rated voltage kV 12 12 12 12
Rated insulation level  voltage Lightning impulse withstand voltage
kV 75 75 75 75
Rated insulation level  voltage 1 min power-frequency withstand kV 42 42 42 42
Rated frequency Hz 50/60 50/60 50/60 50/60
Rated current A 630 125(fuse) 630 125(fuse)
Rated short-circuit breaking current kA - 50(fuse) 25(arc suppression chamber) 25(arc suppression chamber)
Rated short-circuit making current(peak value) kA 50 - 63 -
Rated short-time withstand current kA 20 - 25 -
Rated withstand current(peak value) kA 50 - 63 -
Rated breaking current of cable during charge A 16 - - -
Rated breaking current of no-load transformer KVA 1250 - 1250 -
Rated breaking take-over current A - 3150 - 3150
Breaking times of the rated short-circuit current Times
Mechanical life M2 level M2 level M2 level M2 level
Weight kg 125




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