Product descriptionVS1 series is a kind of indoor high voltage
vacuum circuit breaker which is used in the AC three-phase power
system of frequency 50HZ. The rated voltage of VCB can be 12kV,
24kV or 36kV. It has advantages of small size,reliable
insulation, and long time free maintenance etc. The
operating mechanism can be modular or spring ,VS1 vacuum circuit
breakers can either be a fixed installation unit or be
a withdrawable unit with a dedicated pushing framework.
Technical Specifications
No. Item Unit Data1Rated
voltagekV122Rated CurrentA630/1250/2000/2500/31503Rated
FrequencyHz50/604Rated short circuit currentkA20/25/31.5/405Rated
short time withstand current(4s)kA20/25/31.5/406Rated peak
withstand currentkA50/63/80/1007Rated power frequency withstand
voltagekV42(fracture 48)8Rated lightning impluse withstand
voltagekV75(fracture 85)9Rated operating
sequence O-0.3S-C&O-180S-C&O10Mechanical life
endurancetime1000011Rated short circuit opening current
frequancytime5012Rated voltage of operating
mechanism(DC)V110/22013Open contact clerancemm11+114Super
strokemm3.5+0.515Time differential among phasesms≤216Bounce time of
closing contactsms≤217Average opening speed ms0.9-1.218Average
closing speedms0.5-0.819Opening timems≤5020Closing timems≤10021Main
loop resistance of each phaseμΩ630A≤65; 1250A≤60Environmental
Conditions1. Ambient temperature: not higher than +40 ºC, not less
than -15 ºC (at -30 ºC to allow storage and
transportation). 2. Altitude: not exceed 1000m. 3. Earthquake
intensity: not more than 8 degree. 4. Wind pressure:≤700pa 5.
No fire, explosion hazard, serious filthy, chemical corrosion, as
well as places of intense vibration Company introductionZhejiang
Volcano Electrical is a professional factory for prodcuing
10-40.5kV electrical equipments for power transmission, including
all types of indoor&outdoor vacuum circuit breakers, automatic
current recloser, SF6&vacuum load break switch, isolating
switch, earthing switch, air&gas insulated switchgear, vacuum
interrupters, fuse cutouts and lightning arresters. The factory is
located in Yueqing, the famous town for all types of low and high
voltage electrical parts.It occupies square more than 10000m
2, and has developed several international production line. We
have made constant efforts to improve product quality and service.
To offer best quality with our best service to get a win-win
solution is our main principal. Certification CollectionOur company
has get ISO9001, 14001 and 18001 approved. We have passed many type
testing for our prodcuts. ContactAddress: No.211, Weishier Road,
Economic Development Zone, Yueqing, Zhejiang, China
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