High Quality Embedded Pole, Embedded Pole Type Vcb, Vacuum Circuit Breaker Suppliers in China

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VS1 12kv high voltage indoor vacuum circuit breaker/embedded pole

Basic Info

Model No.: ZN63A-12

Product Description

ZN63A-12 12kv high voltage indoor Vacuum Circuit Breaker  




NO.   Item Unit data
1 Rated voltage KV 12
2 Highest working voltage KV 12
3 Rated lighting implus withstand voltage(peak) KV 75
4 Rated frequency HZ 50
5 Rated current A 630  1250 630 1250   1600 2000    2500  3150 1250  1600 2000  2500 3150  4000
6 Rated short-circuit breaking current(Rated thermal stability current - RMS) KA 20/25 31.5 40
7 Rated short-circuit making current(peak) KA 50/63 80 100
8 Rated Peak withstand current(Rated dynamic current - peak) KA 50/63 80 100
9 Rated short-time withstand current(4s) KA 20/25 31.5 40
10 Overtravel mm 3.5±1.05
11 Dominant loop resistance    To the ground 75(Breaker fracture85)
12 Rated thermal stability time s 4
13 Rated operation ranking   O-0.3SNO-180S-NO,O-180S-NO-180S-NO(50KA_
14 Rated short circuit breaking current breaking times times 50(40ka 30,50ka 20)
15 Rated single/back-to-back capacitor bank breaking current A 40KA(630/400)    50KA(800/400)
16 Mechnical life times 20000
17 Operating mechanism rated closing voltage(DC) v DC110/220 AC110/220
18 Operating mechanism rated opening voltage(DC) v DC110/220 AC110/220
19 Rated contact stroke mm 11±1
20 overtravel(Contact spring compression length) mm 3.5±0.5
21 three pole closing opening bouncing operation ms ≤2
22 Contact bouncing duration at closing contact ms ≤2
23 Average opening speed m/s 0.9~1.2
24 Average closing speed m/s 0.5~0.8
25 opening time under the highest operation voltage s ≤0.05
26 under the lowest operation voltage ≤0.08
27 closing time   s 0.1
28  Dominant loop resistance μΩ ≤60(630A)≤50(1250A)≤35(1600-2000A)≤25(above 2500A)
29 contact ersion limit mm 3









Our service: 

1.You inquuiry related to our products or prices will be replied in 24hours 
2.Well-trained and experienced staffs to answer all your enquires in fluent english 
3.OEM & ODM, any your requirement we can help you to design and put into product 
4.Distributoershio are offered for your unoque design and some our current models 
5.Protection of you sales area ,ideas of design and all your private information


Quality & Prices:


We have to sell items with top quality because we want to keep every customer as our long-term business partner. 

We have to set low competitive prices because we need to attract buyers to this new store.

We will ship your items on time when you place your order . We know time is important for you.

After Delivery

     If you are satisfied with the packages you receive, DO please be kind to leave us positive feedback. Every positive feedback from you is important to increase our credit score. Thus it is important to our company. We will be grateful for you doing so.

    If unluckily there is any problems with the packages, DO please contact us and let us know it. We will solve all dissatisfaction after we receive the pictures from you. We will make sure you are happy with our solution.

Contact us if you need more details on Vs1 Circuit Breaker. We are ready to answer your questions on packaging, logistics, certification or any Other aspects about 12kv Embedded Pole、Vs1 Circuit Breaker. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Vacuum Circuit Breaker

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