Yueqing Manufacturer 1250 amp Vacuum Circuit Breaker With Better Price

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Quick Details
Place of Origin:
Zhejiang, China (Mainland)
Brand Name:
Model Number:
Vacuum, Indoor
Poles Number:
1250 amp circuit breaker
Product name:
Vacuum circuit breaker
Rated Voltage:
Rated current:
Rated Frequency:
High Voltage
Mechanical life:
Accept special order
Supply Ability
Supply Ability:
100 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
Standard export wooden case packing
Ningbo or Shanghai
Lead Time :
Product Description

Yueqing manufacturer 1250 amp vacuum circuit breaker with better price

Quick Reply     Professional Consultation           Continued Cooperation 


ZN12-12 series vacuum circuit breaker is the indoor high voltage switchgear with 12kV rated voltage, three phase AC 50HZ. The product is manufactured by introducing German company SIEMENS technology. The circuit breaker operating mechanism is spring stored energy type, can be used in AC / DC operation, manual operation. It is applicable to controlling and protecting of transmission and distribution system such as power plant and substation, especially to disconnecting the important load and frequent operation places.


For frequent operation place

Good sealing, anti-aging, high pressure, no burning, no explosion, long life, convenient installation and maintenance features



GB/T28001-2011 idt OHSAS18001:2007

GB/T24001-2004 idt ISO14001:2004



Environmental Condition

Altitude:not exceed 1000m

Ambient temperature:not higher than +40°C, not less than -10°C

Relative humidity:daily average relative humidity:≤95%;monthly average relative humidity≤90%;daily average saturated vapor pressure ≤2.2KPa;monthly average value   ≤1.8KPa

Earthquake intensity:≤8 degree

The installation should be free from fire,explosion,severe vibration,chemical corrosion and serious pollution


Main Technical Date

1Rated voltageKV12121240.540.5
2Rated currentA630 12501,6002,1001,6002,000
3Rated short circuit breakng currentKA202531.52531.5
4Rated peak withstand current5063806380
54S Rated short time withstand current(3s for 50KA)202531.52531.5
6Rated short circuit making current(peak)5063806380
7Nos of breaking rated short circuit breaking currenttimes5020
8Rated operating sequence (O)0.3S-CO-180S-CO
9Lightning impulse withstand voltage(peak)(full wave)KV75185
101min power frequency withstand voltage4295
11Closing timems≤7550-85
12Opening time≤60(50)40-85
13Mechanical lifetimes10000
14Operations of breaking rated current10000
15Power of charging motorW275
16Rated voltage of charging motorV110,220
17Charging timeS≤15
18Rated voltage of closing electromagnetV110,220
19Rated voltageof opening electromagnet
20Rated voltage of charging shunt release
21Rated voltage of closing interlock
22Rated voltage of voltage-absent release
23Rated voltage of auxiliary switchA5
24Rated voltage of auxiliary switchAC5DC5

Outline and installation dimension

Hot Products

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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