FZN21-12 and FZN21-12(R)D Series indoor AC HV load switch with fuse

FZN21-12 Series Indoor High Volgate Break Switch
1 ISO9001:2000
2 12KV
3 Safty,Perfect,Loss energy loss

 Overview
      FZN21-12D/T630-20, FZN21-12DR/T125-31.5 Model and composition of high-voltage vacuum load switch for three-phase AC electrical 12kV, 50Hz power distribution system, with a compact, small size, light weight, long life Closing breaking ability, safe and reliable, and fuse with the use of (the combination of electrical appliances), to replace fuses with higher cost, its operating and maintenance easy and convenient.maintenance.

    FZN21-12-Model load switch and the combination of electrical appliances mainly by frame, isolating switch (or fuse charging separate switch), vacuum interr../upter, grounding switch, operating mechanism and other components.
      This product is compact, small size, long life, customs co-breaking ability, easy operation and maintenance. Vacuum switch operating mechanism and distribution and electricity storage spring, the CO can be fast operation. Isolation switch, vacuum switch, grounding switch interlock each other in order to prevent misuse.

Main technical parameters

Serial number	Project	Unit	Parameter
			FZN21	FZRN21
1	Rated voltage	KV	12	12
2	Rated Current	A	630	125
3	Rated short circuit making current	kA	50	50
4	Rated short-circuit breaking current (Switchgear) )	kA	——	31.5
5	Rated active load breaking current	A	630	630
6	4Sthermal current	kA	20	——
7	Dynamic current	kA	50	——
8	1min power frequency withstand voltage	kA	42(Fracture48)	42(Fracture48)
9	Lightning impulse withstand voltage	kA	75(Fracture85)	75(Fracture85)
10	Mechanical life	Times	10000	10000
11	Rated transfer current (Switchgear)	A	——	3150
12	Motor operating voltage	V	AC-DC110,220	AC-DC110,220