FKN12 series load break switch are new series switch are applies to three- phase electric distribution system of rated 12kV,24kV,35kV acting as protecting and control apparatus for transformers, cable and over head wiring.
These series are especially applicable in rural, urban terminal substation and prefabricated substations, as well as ring network power supply. FKN12 can break and make load current and over-current. FKRN12 can break and make over-current, load current and short-circuit current (limiting fuse).
These series products feature with impact structure, aesthetic appearance, reliable interlock and high insulting level. In the spring storage operation mechanism, CO speed is free from the influence of the manpower. For the arc extinguish, electric arc- extinguish inside the insulating cover, the free gas occurs at sparking do not cause descend of insulating level between phases and phase to earth. The insulation cover clapboard separates electrified part thus boost protection grade of ring main unit. The copper-tungsten contact and main contact brings along reliable conductivity and long life. This product achieves sound fame due to the easy maintenance and operation as well as reliable performance.