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ZN85-40.5 40.5KV 33kv Indoor embedded pole vacuum circuit breaker

Basic Info

Model No.: ZN85

Product Description

ZN85-40.5  40.5KV Indoor Embedded Pole Vacuum Circuit Breaker




NO. Item Unit data
1 Rated voltage KV 40.5
2 insulation level power frequency withstand voltage(1min) KV 95
3 Rated lighting implus withstand voltage(peak) 185
4 Rated frequency HZ 50
5 Rated current A 1250 1600 2000
6 Rated short-time withstand current 4s KA 25 31.5
7 Rated withstand current (peak) KA 63 80
8 Rated short circuit breaking current KA 25 31.5
9 Rated short-circuit closing current KA 63 80
10 Rated operation ranking   O-0.3S-CO-180S-CO
11 Rated short circuit breaking current breaking times  times 20
12 Rated capacitor bank breaking current A 20
13 Mechnical life times 10000
1 Rated contact stroke mm 18±1
2 Contact travel mm 5±1
3 opening time(rated voltage) ms 20-50
 4 closing time(rated voltage) ms ≤100
5 contact ersion limit mm 3
6 Average opening speed m/s 0.8±0.2
7 Average closing speed m/s 1.8±0.2
8 Contact bouncing duration at closing contact ms ≤3
9 three-phase non-simultaneity of contact closing  ms ≤2
10  Dominant loop resistance Rated current μΩ ≤60




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 costomized lighings 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


Buy recommendation :

1. Our all items are 100% authentic ,please provide details of the address before purchase , So we can calculate the shipping discounts and the best transportation. 
2. According to the customer's requirement ,different specifications of the items can be mixed shipments and lower freight. 
3.Only wholesale, if require samples, please contact us,If you have any questions or suggestions. Please Contact us freely.



vaccum Circuit Breaker

Contact us if you need more details on Vacuum Circuit Breaker. We are ready to answer your questions on packaging, logistics, certification or any Other aspects about 40.5kv Circuit Breaker、33kv Vacuum 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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