Item Name: FZRN25-12D/T series Indoor HV Vacuum Load Break Switch And Fuse Combination Apparatus

FZN25/12T630-20 type indoor AC HV Load switch in an indoor device of three-phase AC 50Hz and rated voltage 12KV. It is applied to the sited of distribution substation of industrial and mining enterprises and substation etc, used for protection and controlling electric facilities. On and off load current, closd loop current, no-load transformer and cable charging current. The spring storage operation mechanism can both operated by dependent manual and power to realize remote control.

FZRN25-12D/T2000-31.5 type indoor AC HV vacuum load break switch and fuse combination apparatus is an indoor device of three-phase AC 50Hz and rated voltage 12KV, It is applied to the sites of distribution substation of industrial and mining enterpises and substation et, used for load control and short circuit protection, The spring storage operation mechanism can both operate by dependent manual and power to realize remote control.

No.	Item		Unit	Data
				FZN25-12D/T630-20	FZN25-12D/T630-20
1	Rated Voltage		kV	12
2	Rated Current		A	630	200
3	Rated Frequency		Hz	50
4	Rated insulating level	1min. PF withstand voltage	kV	Arcing chamber gaps to earth phase to phase 42 across open contacts
		Lightning impluse withstand voltage(peak)	kV	to earth phase to phase 75 across open contacts 85
5	Rated Short-circuit withstand current		kA	20
6	Rated short-curcuit duration		S	4
7	Rated peak withstand current		kA	50
8	Rated active load breaking current		A	630
9	Rated breaking current of closed-loop		A	630
10	Rated breaking current of charging cable		A	10
11	Rated breaking no-load transformer capacity		kVA	1600
12	Rated short-circuit breaking current		KA	-	31.5
13	Rated breaking transfer current		A		2000
14	Fuse model				SDLAJ-12 SFLAJ-12
15	Output power of impinger		J		2-5
16	Rated short-circuit making current		kA	50	80(prospective peak value)
17	Rated short-time withstand current-earthing switch		kA	20
18	Rated short-circuit duration of earthing switch		S	2
19	Rated peak withstand current-earthing switch		kA	50
20	Rated voltage of auxiliary loop		V	≈ 220	≈ 110
21	Mechanical life		times	10000