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ZN28A Series Indoor AC Vacuum Circuit Breaker 12KV 1250A

Basic Information
Place of Origin: XIAN
Brand Name: XG
Certification: ISO,CCC
Model Number: ZN28
Minimum Order Quantity: 1 SET
Packaging Details: WOODEN CASE
Delivery Time: 3-7 DAYS
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 2000 SET
Detail Information
Type: Indoor Rated Voltage: 3.6KV 6.6KV 7.2kV, 12kV, 17.5kV, 24kV, 36kV, 40.5kV
Rated Current: 400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A, Frequency: 50/60Hz
Poles Number: 3 Phase: 3 Phase
Medium: Vacuum Material: Galvanized Sheet And Accessories
High Light:

12KV AC Vacuum Circuit Breaker


1250A Vacuum Circuit Breaker


AC 50Hz Vacuum Circuit Breaker

Product Description

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


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 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.Production line



6.After service




7. FAQ


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Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197