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VK12-12 Vacuum circuit breaker - with composite insulated pole


VK12-12 series indoor medium voltage vacuum circuit breaker



 (hereinafter referred to as VK12) is an indoor switch device 



component with rated voltage of 12KV and below, three-phase AC 50Hz. 

Product Information


Product introduction of VK12-12 indoor medium voltage vacuum circuit breaker
VK12-12 series indoor medium voltage vacuum circuit breaker (hereinafter referred to as VK12) is an indoor switch device component with rated voltage of 12KV and below, three-phase AC 50Hz. The circuit breaker is used with KYN28A -12 type switchgear and can also be installed. In the XGN2 and other fixed switchgear. The circuit breaker adopts a spring operating mechanism and a circuit breaker body to be integrally designed, which can be used for a fixed installation unit or a special propulsion mechanism to form a hand truck unit.

Product information of VK12-12 indoor medium voltage vacuum circuit breaker 
The performance of VK12-12 series vacuum circuit breaker has the leading domestic level. It maintains the advantages of ZN63A (VS1) indoor vacuum circuit breaker with small volume, strong breaking capacity, high insulation strength, no pollution and no explosion hazard. It also has the following characteristics:
1, unique design 
Professionally designing circuit breakers, featuring the VK12 series circuit breakers of our company.(Patent No. : ZL 2019 3 0002790.0)
2, high corrosion resistance 
The surface treatment of most parts in the product organization adopts advanced nickel-phosphorus alloy treatment process to ensure the product's high anti-pollution and anti-corrosion ability.(This data comes from the inspection (experiment) report of National Electric Product Quality Supervision and Inspection Center (No: 19K2235-S).)
3, strong interchangeability 
Direct interchange with ZN63A (VS1)-12, VK12-12P, VKVS1 products.
4, long life 
Compared with the ZN63A (VS1) breaking current of 31.5KA and below, the mechanical life of the product is increased from 20,000 to 30,000 times; the mechanical life of the breaking current of 40KA is increased from 10,000 to 20,000 times.(This data comes from the inspection (experiment) report of National Electric Product Quality Supervision and Inspection Center (No: 19K2235-S)
5, highly reliable secondary system 
The electrical components are imported or the best in the country, which improves the stability and reliability of the secondary system.
6, high insulation strength 
 When used at an altitude of 2000 meters and below, it is necessary to replace any parts to meet the insulation requirements: the insulation parts are imported or  domestic raw materials, while increasing the design margin and improving the insulation performance of the circuit breaker.

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