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Indoor HV load switch and fuse

Product Detailed

Isolate Switch
1.Type:FN5-12
2.Standard|:IEC420 GB3804
3.Main Material:Procelain&Steel

Outline
FN7——12DRModel Indoor AC HV Load Switch is suitable in 50Hz, rated voltage of 12Kv the three-phase AC power system as the breaking load short-circuit current of the power and used the Closing, until the combination of electrical short-circuit current can be breaking any current can be used as protection purposes.

Installation and use of
      Ambient air temperature    Limit +40°C    Lower limit -25°C
      Above sea level1000m.
      Relative humidity: daily average is less than 95%, on average less than 90%;
      The surrounding air should not be corrosive or flammable gases and water vapor and other obvious contamination;
      Without frequent violent vibration.

Rated parameters

Rated voltage (KV rms)		12
Insulation level	1min power frequency withstand voltage (KV. RMS)	White. Phase to 42	Isolation break48
	Lightning impulse voltage (KV. a peak)	White. Phase to 75	Isolation break85
Rated Current(A)		400	630
Rated thermal current (KA RMS 4S)		12.5	20
Rated dynamic current KA (peak)		31.5	50
Rated short circuit making current (KA peak)		31.5	50

Specifications

Name	Name	All models	DS	DX	L	R	RA	F	Use
Name	Name	All models	Grounding switch into the line-side	Grounding switch outlet side	Interlock device	Fuse	Impact fuse	Electric sub-gate devices	Use
Load Switches	Non-impact fuse	FN7—12	——	——	——	——	——	——	Line load switch
		FN7—12DSL	Y	——	Y	——	——	——
		FN7—12DXL	——	Y	Y
		FN7—12R	——	——	——	Y	——	——	Transformer Protection
		FN7—12DSLR	Y	——	Y	Y	——	——
		FN7—12DXLR	——	Y	Y	Y	——	——
	With impact fuse	FN7—12RAF	——	——	——	——	Y	Y	Transformer Protection
		FN7—12DSLRAF	Y	——	Y	——	Y	Y
		FN7—12DXLRAF	——	Y	Y	——	Y	Y