Specifications

vacuum load switch and composite apparatus

SPECIFICATION

FNZ25,FZRN25 type vacuum load switch and composite apparatus, suitable for three-phase AC 50HZ ring network or terminal power supply and industrial electrical equipment, for load control and short circuit protection use, load switch open and close the closed loop current. Adopt the straight move or isolating fracture and vacuum interrupter linkage .With function of manual and electric operation.

FZN25, FZRN25 special transmission structure design, arc extinguish camber only withstand voltage in the moment of closing and breaking, small size, light weight.

FZN25, FZRN25 can realize isolation fracture and arc extinguish chamber fracture disposable operating.

FZN25,FZRN25 has a grounding switch mutual linkage grounding valve between the static contact and mova conductive cylinder, ensures safety and convenient maintenance .

 

 

AMBIENT CONDITION

1.      The ambient temperature: -25C---+40C, alpine region≥-40C

2.      The altitude:≤ 1000M

3.      Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%.

4.      Earthquake intensity: ≤ 8degree;

5.      The surrounding air is not corrosive and flammable gas, steam and other significant pollution;

6.      Contamination grade: II cass;

 

MODEL IMPLICATION

 

 

 TECHNICAL SPECIFICATION 

NO.	Item		Units	Parameters
1	Rated voltage		KA	FZN25-12D/T630-20	FZRN25-12D/T1250-31.5
2	Rated frequency		HZ	50
3	Rated current		A	630	1250
4	Rated insulation level	1min frequency voltage	KV	Interr upter Fracture 30.on the ground, white lation fracture 48
		Lightning impulse withstand voltage	KV	On the ground, white 75 solation fracture 85
5	Rated dynamic stability current (peak)		KA	50	-
6	4Sthermal current		KA	20	-
7	Rated active load breaking current		A	630	1250
8	Rated closed-Loop breaking current		A	630	1250
9	Rated cable charging breaking current		A	10	10
10	Breaking load transformer		KV	1250	1250
11	Rated short-circuit breaking current		KA	-	31.5
12	Rated transfer current, rated current transfer		A	-	2000
13	Fuse Model			-	SDLAJ-12SFLAJ-12
14	Impact energy output		J	-	2-5
15	Rated short circuit making current		KA	50
16	Ground switch rated Dynamic current		KA	50
17	Grounding switch 2S thermal current		KA	20
18	Secondary circuit Rated voltage		V	AC/DC 220;110
19	Mechanical life		Times	1000

 

OVERALL DIMENSION