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Wenzhou Rockwell Transformer Co., Ltd.

Vacuum Circuit Breaker, Breaker, Indoor Vcb manufacturer / supplier in China, offering Indoor Drawable Type Vacuum Circuit Breaker, 10kv Distribution Transformers, Rectifier Transformer/ Zs Series High Quality Voltage Rectifier Transformer/Oil Immersed Rectifier Transformer and so on.

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Supplier Homepage Product Recloser&Vacuum circuit breaker & Switchgear Indoor Drawable Type Vacuum Circuit Breaker

Indoor Drawable Type Vacuum Circuit Breaker

FOB Price: US $1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1/ Piece
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Production Capacity: 5000 PCS/Year
Transport Package: Wooden
Payment Terms: L/C, T/T, Money Gram

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Basic Info
  • Model NO.: VD4
  • Operation: Electric Type
  • Arc-extinguishing Medium: Vacuum
  • Structure: Conventional Circuit Breaker
  • Function: Overcurrent Protection, Circuit-Breaker Failure P
  • Trademark: Rockwill
  • Origin: China
  • Breaking Capacity: High Voltage Circuit Breakers
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed/Drawable
  • Type: Circuit Breaker
  • Certification: ISO9001-2000, CE
  • Specification: IEC, ANS
  • HS Code: 85352100
Product Description
VD4 Type medium-voltage indoor vacuum circuit breaker is applicable for three-phase AC power system of rated voltage up to 42kV and frequency 50/60Hz, widely used in many fields such as power plant, transformer substation, petrol chemical industry, metallurgy, manufacturing industry, airport, residential area, etc., to control and protect the electric equipment, especially.
This circuit breaker is standards as IEC62271-100, GB1984-2003 high voltage circuit breaker for order as well as IEC60694.
This circuit breaker is made with mature APG technology. The application of RVB terminal buffer guarantees the terminal is ever more reliable in nay operation environment.
++++Service environment
A) Air temperature: Maximum temperature: +40C; Minimum temperature: -25C
B) Humidity: Monthly average humidity 95%; Daily average humidity 90%.
C) Altitude above sea level: Maximum installation altitude: 2500m
D) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
E) No frequent violent shake.
Indoor Drawable Type Vacuum Circuit Breaker
NoItemUnitParameter
1Rated voltagekV1217.5
2Rated frequencyHz50/60
3Rated currentA630/800/1250/1600/2000/2500/3150
41min Power frequency withstand voltagekV38/4245/49
5Lightning impulse withstand voltagekV7595
6Rated short circuit breaking current (peak)kA63/80/100
7Rated short breaking currentkA20/25/31.5/40kA
8Rated short circuit making current (peak)kA63/80/100/125
9Cable charge breaking current in earthing faultA2020
10Rated withstand current (peak)kA63/80/100
11Short time withstand current (4s)kA31.5
12Mechanism lifetimes10000
13Operation sequence O-0.3-CO-180S-CO
14Rate of rise of transient recovery voltagekV/uS0.340.42
15Peak of transient recovery voltagekV20.630
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Mr. Chen Chengming
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