ZN28A Series Indoor AC Vacuum Circuit Breaker 24KV 12KV 1250A-2150A Price

ZN28A Series Indoor AC Vacuum Circuit Breaker 24KV 12KV 1250A-2150A Price

2 years quality guarantee after shipment
Product diversification for electrical power distribution
High Quanlity & Reasonable Price in global market
Safe and environmental distribution power products
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Product Details

1.Description of ZN28A Series Indoor AC Vacuum Circuit Breaker 

ZN28(A)-12 series vacuum circuit breaker is an indoor high voltage switch with rated voltage 12KV, 3 phases AC 50Hz. This type circuit breaker is vacuum type, it is new style in global market.

This vacuum circuit breaker conforms to the standard GB1984-89 .

This vacuum circuit breaker can match in use with CD17,CD10A Model DC magnetic operating mechanism or CT17 and CT19 model spring energy storage operating mechanism. 

2.Parameter of ZN28A Vacuum circuit breaker

 No. Item  UnitData 
1 Rated voltageKV12
2Rated insulation voltageV42,75
3Rated currentA630,1250,1600,2000,2500,3150


Rated short-circuit close current(peak value)KA20,31.5,40
5Rated operation order
off--0.3s on and off--180S-on and off
6Rated short-circuit Breaking current timestimes30(50),20(30)
7Rated Impulse withstand voltageKA 50,80,100
84S Heat steady e.c.A
9all opened and broke timems≤100
10Mechanical life-spantimes10000
11 cumulated thickness of the moving and stationary contactmm
12Oil buffer buffers the journeymm10

3.Environmental condition

Relative humidity: daily average ≤95% , monthly average ≤90% ;

Earthquake intensity: 8 degree; 

Altitude: ≤1000m;

Ambient temperature: -25°C ~+40°C ;

It should work in occasions without flammable and explosive matter, without corrosive chemical   and frequent severe vibration.

4.Technical diagram


5. Prodcution line 


6. After service


7. FAQ

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8.Contact us

XIGAO Electricenergy Group Co.,LTD.

Add.: No. 6, Weibei Industrial Park, Xi'an City, Shaanxi Pro., CN. 710600 

Phone: 0086 13484807604

Email: victoria@zgxgdn.com

WhatsApp: 0086 13484807604

Wechat: 0086 13484807604

Website:  www.zgxgdn.cn