China Zhiyue

Indoor High Voltage Load Break Switch

FZN25 FZRN25 vacuum load switch
  • FZN25 FZRN25 vacuum load switch

FZN25 FZRN25 vacuum load switch

。The ambient temperature: -25°C-+40°C, alpine region, ;;.-40°C;
。The altitude:≤1000M;
。Relative humidity: daily average value is not greater than 95%, monthly average is not 9reater than 90%;
。Earthquake intensity:≤ 8 degree;

Detailed introduction

FZN25 FZRN25 vacuum load switch

FZN25 FZRN25 Indoor High Voltage Load Break Switch

FZN25, 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 protect ion use, load switch open and close the closed loop current, no-load transformer and cable charging current, composite apparatus can break any current till rated short circuit 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 chamber 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: -25°C-+40°C, alpine region, ;;.-40°C;
2. The altitude:≤1000M;
3. Relative humidity: daily average value is not greater than 95%, monthly average is not 9reater than 90%;
4. Earthquake intensity:≤ 8 degree;
5. The surrounding air is not corrosive and flammable gas, steam and other significant pollution;
6. Contamination grade: II class;

Model Implication


Item Units Parameters
FZN25-12D/T630-20 FZRN25-12D/T125-31.5
Rated voltage kA 12
Rated frequency Hz 50
Rated Current A 630 125
Rated insulation level 1min  frequency voltage kV lnterrupter Fracture30.on the ground,
white 42 .solation Fracture48
Lightning impulse withstand voltage kV On the ground, white 75 solation Fracture85
Rated dynamic stability current (peak) kA 50
4Sthe rmal current kA 20
Rated active load breaking current A 630 125
Rated closed-Loop break1ng current A 630 125
Rated cable charging breaking current A 10 10
Breaking load transformer kV 1250 1250
Rated short-c1rcuit breaking current kA 31.5
Rated transfercu rrent,rated current transfer A 2000
Fuse Model   SDLAJ-12SFLAJ-12
Impact energy output J 2-5
Rated short circuit making current kA 50
Ground switch rated Dynamic current kA 50
Grounding switch 2S thermal current kA 20
Seconda ry Circu it Rated voltage V AC/CD220;110
Mechanical life Times 1000

Overall Dimensions 

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