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12KV High Voltage Circuit Breaker 40KA For Power Plants

Basic Information
Place of Origin: XIAN, China
Brand Name: XG
Certification: ISO CCC
Model Number: ZN28
Minimum Order Quantity: 1 SET
Packaging Details: WOODEN CASE
Delivery Time: 7-15 DAYS
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram,
Supply Ability: 2000
Detail Information
Name: High Voltage Vacuum Circuit Breaker Usage: Power Plants
Warranty: 12 Months Voltage: 12KV
Package: Exporting Standard Package MOQ: 1set
Operation Type: Electric Or Manual Life Span: More Than 15 YEARS
High Light:

12KV High Voltage Circuit Breaker


Power Plants High Voltage Circuit Breaker


High Voltage Circuit Breaker 40KA

Product Description

ZN28A 12KV High Voltage Vacuum Circuit Breaker For Power Plants


1. ZN28A Series high-voltage vacuum circuit breaker


ZN28 High Voltage Vacuum Circuit Breaker is the indoor high voltage switchgear with 12kV rated voltage , three phase AC 50HZ . High Voltage Vacuum Circuit Breaker is mainly used for fixed type switch cabinet or substituting minimum oil circuit breaker in old-fashioned kinds, also applies to protecting and controlling unit of mobile switching equipment. It is suitable for occasions with frequent operation


2. Parameter of Vacuum circuit breaker


No. Item Unit Data
1 Rated voltage KV 12
2 Rated insulation voltage V 42,75
3 Rated current A 630,1250,1600,2000,2500,3150
4 Rated short-circuit close current(peak value) KA 20,31.5,40
5 Rated operation order   off--0.3s on and off--180S-on and off
6 Rated short-circuit Breaking current times times 30(50),20(30)
7 Rated Impulse withstand voltage KA 50,80,100
8 4S Heat steady e.c.A   20,31.5,40
9 all opened and broke time ms ≤100
10 Mechanical life-span times 10000
11 cumulated thickness of the moving and stationary contact mm 3
12 Oil buffer buffers the journey mm 10



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. Certificate


12KV High Voltage Circuit Breaker 40KA For Power Plants 1


6. FAQ


1. Technology ensure the quality satisfy international request.

2.Generally we promise one - two years quality guarantee, some products will be extended longer time for life span.

3. For tender cooperation, it is welcome to discuss the detail in between.

4. Some type reports are provided accordingly.

5. Our factory is 250000m2 for production and office.

6. There are four subsidies in our group company. So our whole group company can produce switchgear, power transformer, load break switch, disconnect switch, vacuum/sf6 circuit breaker, fuse, surge arrester, CT PT, Metering unit.

Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197