China Electrical Power Transformer manufacturer

Professional Vacuum Circuit Switch / Vacuum Type Circuit Breaker Easy Operation

Product Details:
Place of Origin: China
Model Number: Zw8-12d /630
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: 200-5000/piece
Packaging Details: wood
Delivery Time: 15 days
Payment Terms: T/T
Supply Ability: 20000 pieces/year
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Detail Information

Poles Number: 3 Type: Vacuum
Application: Circuit-breaking Keywords: Circuit Breakers
Rated Current: 630A Quality: Superior
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vcb circuit breaker


vacuum circuit switch

Product Description

Zw8-12d /630 high voltage vacuum circuit breaker on outdoor column 12KV



It used vacuum interrupter, insulator, electric spring operate structure to improve interrupter, open-close frequency without explode and it was a product of convenience operation with good characteristic and practice. The whole structure of this product was made up of three-phase, pipe in-out line, drier air in box and electric spring operate structure was beside the box which can be used in harsh environment. The vacuum interrupter of this product was made up of ceramic cover, cup magnetic contact terminal, cu-cr material which has good cut-off, link short current capability. This product has small size, light weight, beautiful appearance. The vacuum interrupter and insulator pipe was designed compact and output pole was filled with silicon rubber which can be applied for harsh climate and dirty conditions.


Product Details

Vacuum circuit breaker, airinsulated, electric spring operating mecha nism, high-frequency short-cir

cuit breaking, no fire and explosion danger, easy to operate, is a good, practical, strong performance

products. This product is a vacuum circuit breaker ceramic Shell, cup-shaped Longitudinal magnetic

field electrode structure, copper and chromium contact materials, with excellent short-circuit

current breaking and closing ability. The Product is small in volume, light in weight and beautiful in

appearance. The vacuum interrupter insulation support sleeve is compact in design, and the limit

conductive silicone rubber is injected outside, which can adapt to the severe weather.


Professional Vacuum Circuit Switch / Vacuum Type Circuit Breaker Easy Operation 0


Conditions of Use

Sea level:≤1000m(if increase the altitude, it will improve 12% every increase 1000m, rated insulator average level increase 12%);
Ambient air temperature:+40℃,***-35℃;
Wind pressure:not over 700Pa(equals to wind speed 34m/s);
Amplitude:without frequent convulsion;
Air pollute degree:Ⅲ grades;
Daily different temperature:not over 25℃




Note: Due to continuous product improvement, the dimensions provided in this sample are for reference only. If necessary, our company can design and produce according to user requirements. Please contact the company in time.


No. Item Unit Data
1 Rated voltage kV 12
2 Rated frequency Hz 50
3 Rated current A 630,1250
4 Rated short circuit breaking current kA 12.5,16,20,25
5 Rated peak withstand current kA 31.5,40,50,63
6 Rated short time tolerance current(4s) kA 12.5,16,20,25
7 Rated short circuit opening and closing current kA 31.5,40,50,63
8 Institution life time 10000
9 Rated short open circuit current switch frequency time 30
10 Rated current open circuit frequency time 10000
11 Power frequency withstand voltage (1min) : phase, ground/fracture kV 42/48
12 Lightning shock withstand pressure(peak)phase, ground/fracture kV 75/85
13 Power frequency withstand voltage of the secondary circuit )(1min) kV 2
14 Net weight kg 140

·Order instructions:

1. The customer needs provide main parameters of the transformer (input and output voltage, capacity, loss, etc.)

2. Other customer requirements




Professional Vacuum Circuit Switch / Vacuum Type Circuit Breaker Easy Operation 1




Package Details:



Professional Vacuum Circuit Switch / Vacuum Type Circuit Breaker Easy Operation 2



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