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VK12-40.5P Vacuum circuit breaker with fixed pole

The VK12-40.5P series indoor high voltage AC vacuum circuit breaker (hereinafter referred to as VK12) is an indoor switchgear component with rated voltage of 40.5kv and below and three-phase AC 50Hz.
Product Information


Product introduction of VK12-40.5P solid-sealed pole type indoor high voltage vacuum circuit breaker
The VK12-40.5P series indoor high voltage AC vacuum circuit breaker (hereinafter referred to as VK12) is an indoor switchgear component with rated voltage of 40.5kv and below and three-phase AC 50Hz. The circuit breaker adopts a spring operating mechanism and a circuit breaker body to be integrally designed. The installation form of the switchgear is extractable, and its basic structure and external dimensions are shown in Figure 1.
The products meet the relevant domestic and international standards such as GB, DL, IEC, etc., and the performance reaches the level of M2-E2-C2.
Product information of VK12-40.5P solid-sealed pole type indoor high voltage vacuum circuit breaker
1. The main circuit adopts a solid-sealed pole.  
The main circuit of the circuit breaker adopts the APG process forming technology. The high-performance epoxy resin is used to seal the vacuum interrupter and the upper and lower outlets together. The vacuum interrupter is used to protect it from dust, moisture and pollution, and the environment is improved. Reliability and insulation reliability, while reducing the adjustment of the circuit breaker improves assembly quality and mechanical reliability.
2, the circuit breaker is M2 circuit breaker   
Superior mechanical performance, can be used in frequent operation, the circuit breaker meets the requirements of M2 circuit breaker, and the mechanical life is up to 20,000 times.
3. The circuit breaker is an E2 circuit breaker   
The circuit breaker passed all type tests at the Shanghai High Voltage Apparatus Testing Center to meet the requirements of the E2 class circuit breaker. The circuit breaker broke the full capacity short circuit current by 20 times.
4, the circuit breaker mechanism has excellent corrosion resistance    
The mechanism parts adopt advanced surface treatment technology to make the parts more resistant to corrosion and higher mechanical stability.
5, high stability, reliability   
Equivalent to the ZN85 type circuit breaker, the product's closing bounce time and opening rebound amplitude are improved, which enhances the reliability of operation.
6, high current level    
The rated current can reach 2500A, which meets the market demand for 35kV high current hand-cranked circuit breakers.
7, flexible cabinet solution   
That is to say, KYN61 switchgear (small changes in the cabinet), or a specially designed improved KYN61 switchgear (1200mm wide, 1680mm wide).
When configuring the chassis, it can also be equipped with a mid-mounted 35KV switchgear.

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