Good Quality 11KV 630A Vacuum Circuit Breaker With Factory Price

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  • 1 - 9 Pieces
  • 10 - 19 Pieces
  • >=20 Pieces
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Quick Details
Place of Origin:
Zhejiang, China (Mainland)
Brand Name:
Model Number:
Vacuum, Outdoor
Poles Number:
11kv 630a vacuum circuit breaker
Rated Voltage:
Rated current:
Rated frequency:
Mechanical life:
High voltage
Accept special order
Mechanical Life:
10000 Times
Supply Ability
Supply Ability:
1000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
Standard export wooden case packing
Ningbo or Shanghai
Lead Time :
Product Description

Good quality 11KV 630A vacuum circuit breaker with factory price

General Description
ZW8-12 Series outdoor high voltage vacuum circuit breaker is main switch equipment of rated voltage 12KV, three phases AC50Hz system, to switch on/off loading current, over-current, and short circuit in rural or urban power network. The structure of breaker is of three-phase assembled in a tank, three-phase vacuum arc-extinguishing chamber enclosed in metal tank, insulation material between phases and phase to each made of SMC, reliable performances, and high insulating strength.

ZW8-12G consists of ZW8-12 breaker and isolator, called combined breaker, can be used as sectionalizer.

The operating mechanism for this series breaker is CT23 spring charging mechanism, motor or hand operating type.

Application and feature

It is equipped with CT23 type spring energy-stored operating mechanism. Energy-stored, opening and closing can be achieved by motor or by manual.

Applying ambient conditions

Ambient temperature: The max, temperature should be+40 degrees. The mix. temperature The height above sea level should be no higher han 1000m.

Wind preesure should be on more than 7000Pa it isequivalent to wind speed of 34m/s The air filthy should be win in III degree. Frequently violent vibration should be forbidden.

Type designation

Main Technical Parameters

1Rated voltage(KV)12
2Max. voltage(KV)12
3Rated current(A)630
4Rated short circuit load breaking current(KA)20
5Rated short circuit making current(peak)(KA)50
6Rated peak withstand current(KA)50
7Rated 1min withstand current(KA)20
8Rated insulation level(KA)Power frequency withstand voltage(dry)42
Lightning impulse withstand voltage(peak)75
9Rated operating sequenceO-0.3s-CO-180s-CO
10Mechanical life(times)10000
11Nos of breaking rated short circuit breaking current(times)30
12Rated close brake voltage of operating machnie(V)110,220
13Rated opening brake current of operating machine(V)110,220
14Opening distance of current(mm)11±1
15Over traveling distance(spring compressed lenght of contact)(mm)3
16Asynchrony of opening or closing three phases(ms)≤2
17The jump time of contact close break(ms)≤2
18Average break speed(s)1.0±0.2
19Average closing speed(s)0.7±0.15
20Opening time(s)Ubder max.operating voltage0.015-0.05
Under min.operating voltage0.03-0.06
21Closing time(s)0.025-0.05
22Main circuit resistance of each phase(μΩ)≤120
23Permissible abraded thickness of moving and static contacts(mm)3

Outline and installation dimension

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Company Information

Yueqing City AISO Electric Appliance Co., Ltd located in Liushi Town, Wenzhou City, Yueqing City , Zhejiang Province.Industrial Zone,Liushi town is China's high and low voltage electrical appliances . We have a wealth of experience in production and sales,we specialize in production of power Transformer, current transformer , Voltage transformer .Cuircuit Breaker ,Capacitor, fuse , load switch, lightning arrester and eletric equipments. In addition, we have a good location advantage, and most manufacturers have more close contact, you can provide other electrical products, and according to your needs, customized products We sincerely hope that you and I work together to create. A better future!


Work Shop

1)We have a professional team.Take care of every customer question.


2)Eight years exporting experience can help us to serve you better.


3)100% QC inspection Before the timely delivery of the goods.


4)We have a strict factory inspection requirements.





Our Services

Our Services


1.We can make the products as different’s special require.


2.Flexible lead time 


3.We can offer products at different prices 


4.We have our own workflow (AISO process) 


5.Any way, any time, your problems will be timely reply 




"Do you have a catalogue? Can you send me the catalogue to have a check of all your products?"

Yes , We have product catalogue.Please contact us on line or send an Email to sending the catalogue.


"Whether can produce as my require?"

"Yes,we can make the products as different’s special require."


"How long the product warranty?"

"Normally, the warranty for the product is 18 months , warmly reception with the calling, visiting and letters, and give the best answers and solution in time from the customers for the technical problem."


"What kind of payment do you accept ? Can I pay RMB ?"

"We accept T/T(Wire transfer),Western Union and Paypal. And you can pay money In RMB. No problem."


"Any requirements or question,welcome to ""Send"" us an e-mail  Now!!!


It's our great honor to do services for you! "




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