Summary
FZN25-12 type indoor AC high voltage vacuum load switch and Load switch- switch-fuse combinations(Here in after referred to as combined electrical appliances) is three phase AC 50Hz、12kV, Control of distribution system and protector，Widely used in industrial and mining enterprises, urban buildings, power distribution stations and other places，Especially suitable for distribution system with ring network connection。The operating mechanism can be manual and electric，It is convenient to realize the "three remote control" requirements of power system .Performance satisfaction GB3804-2004《3.6kV~40.5kV High voltage AC load switch》、GB16926-2009《High voltage AC load switch-switch-fuse combinations》requirements .
Model description 
 

Use environment

1. Altitude≤1000m ;
   2. Ambient temperature-25℃ ~+40℃ ;
   3. Daily average value of relative humidity is not greater than 95%，Monthly average value is not greater than 90% ;
   4. The surrounding air is not obviously polluted by dust, smoke, corrosive and / or combustible gas, vapor or salt spray;
   5. Places without fire and explosion hazards;
   6. Places with the seismic intensity shall not exceed 8 degrees and inclination of no more than 5 °。
   Remarks：Above is GB/T11022 General service conditions，If special use environment conditions are required, such as high altitude, dense salt fog, extremely cold and extremely hot environment，Special customization of technical design can be changed according to the above requirements。

Technical reference data 
 

VS1-12/24 Vacuum circuit breaker
Summary
VS1-12/24 seriesIndoor AC high voltage vacuum circuit breaker it do for 50Hz，rated voltage 12kV In the network，It’s to introduction of ABB TechnologyDevelop and manufacture products based on the development of domestic industry and production capacity.The overall structure of the product is the integrated installation of switch body and operating mechanism，Adopt composite insulation structure，No pollution, no explosion risk, high insulation level，It can be used as control and protection equipment in industrial and mining enterprises, power plants and substations，especially suitable for industries that need frequent operation such as metallurgical arc steelmaking。
The operating mechanism of this series of products adopts the integrated design of modular spring operating mechanism and circuit breaker body，It can be used as a fixed installation unit or as a manual unit，It can be operated electrically or manually。
型号说明 
 

Technical reference data