The product FZ(R)N25-12(D) series vacuum load switch and combination electrics of our company is suitable for three-phase AC 50 HZ , 10 KV power distribution system, and with the advantages of non-pollution,non-fire and explosion dangers and can operate frequently. It can be acted as the main components of ring network , box-type substation and other type switch cubicle, and also was used to protect and control the transformer, cable,and Aerial electric power equipment. The product commonly provided to Distribution system of the factory, Residence communities, tall buildings, schools, parks and so on.