ERFA Industries Group

Xian ERFA Switchgear under ERFA Industries Group



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Home ProductsIndoor Vacuum Circuit Breaker

VCB Indoor Vacuume Ciruit Breaker

VCB Indoor Vacuume Ciruit Breaker

VCB Indoor Vacuume Ciruit Breaker

Product Details:

Place of Origin: China
Brand Name: ERFA
Certification: ISO9000,
Model Number: 63A

Payment & Shipping Terms:

Minimum Order Quantity: 1 Unit
Price: $1338¬$1500
Packaging Details: Wooden case with pallet
Delivery Time: 10days after payment
Payment Terms: T/T, Western Union
Supply Ability: 10000pcs per month
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Detailed Product Description
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circuit breaker


miniature circuit breaker


MCB circuit breaker

VD4 high-voltage indoor vacuum circuit breaker is applicable for three-phase AC power system of rated voltage up to 36kV 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 , It is used for the occasion that needs infrequent operation at rated current or multi-breaking short circuit current, may be mounted in the indoor air insulating switchgear like type KYN61 or AMS, ABB type ZS3.2 series, etc. This circuit breaker is made with mature APG technology . The application of VD4 terminal buffer guarantees the indoor terminal is ever more reliable in nay operation environment. VD4 can fully meet the requirement of GB, DL, IEC, DIN, VDE as well as standards of other advanced industrial countries.

++++Service environment:

a) Air temperature: Maximum temperature: +40ºC; Minimum temperature:-25ºC
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

++++ Main technical specifications:

No Item Unit Parameter
1 Rated voltage kV 36
2 Rated frequency Hz 50/60
3 Rated current A 630, … 2500A
4 1min Power frequency withstand voltage kV 95 118
5 Lightning impulse withstand voltage kV 185 215
6 Rated short circuit breaking current (peak) kA 50/63/80
7 Rated short breaking current kA 20, …31.5
8 Rated short circuit making current (peak) kA 50/63/80
9 Rated cable(line) charging breaking current A 50 and 10
10 Rated single capacitor bank switching current A 400
11 Rated withstand current (peak) kA 50/63/80
12 Short time withstand current (4s) kA 20, …31.5
13 Mechanism life times 10000

Note: For short circuit breaking current & rated current is optional by clients.


Contact Details
ERFA Industries Group

Contact Person: Dong

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