FN7-12C 12kV High Voltage AC Manual Type Load Break Switch With Panel Operation

• Specification
• Technical parameters

• FN7-12C 12kV load break switch product overview

  FN7-12 AC high-voltage load break switch is a new type of gas-generating indoor high-voltage load switch. It is suitable for three-phase AC power systems with AC 50Hz and rated voltage 12kV. It is used to break load current and close short-circuit current.
  The FN7(C)-12 series of high-voltage load break switches and fuse combination appliances are based on the FN7-12 series of high-voltage load break switches and add a side operating mechanism, making the installation simpler and more convenient and able to meet the different requirements of users.

  FN7-12C load switch normal usage environment

  1. The upper limit of ambient air temperature: +40 degrees, the lower limit: -25 degrees;
  2. The altitude does not exceed 1000m;
  3. Relative humidity: the daily average value is not greater than 95%, and the monthly average value is not greater than 90%;
  4. The earthquake intensity does not exceed 8 degrees;
  5. Places without risk of fire, explosion, chemical corrosion and severe vibration;
  6. Pollution level: Level II;
  7. The surrounding air should not be significantly polluted by corrosive or flammable gases and water vapor.

• FN7-12C 12kV high voltage load break switch technical parameters

  Item	Unit	Data
  Rated voltage	kV	12
  Rated current	A	400	630
  1min power frequency withstand voltage	kV	42/48
  4S thermal stable rated current (effective value)	kA	12.5	20
  Dynamic stable current (peak value)	kA	31.5	50
  Short circuit making current	kA	31.5	50
  Rated breaking current	A	400	630
  Rated transfer current	A	1000

   

  Overall dimension drawing reference

  

   

  FN7-12 Model Reference 

  Type	Model	DS	DX	L	R	RA	F
  		Earthing switch at input terminal	Earthing switch at output terminal	Interlock device	Fuse	Impact release	Power closing device
  No release	FN7-12	–	–	–	–	–	–
  	FN7-12DSL	△	–	△	–	–	–
  	FN7-12DXL	–	△	△	–	–	–
  	FN7-12R	–	–	–	△	–	–
  	FN7-12DSLR	△	–	△	△	–	–
  	FN7-12DXLR	–	△	△	△	–	–
  With impact release	FN7-12RAF	–	–	–	–	△	△
  	FN7-12DSLRAF	△	–	△	–	△	△
  	FN7-12DXLRAF	–	△	△	–	△	△

  Note: (-)without (△)with

  Ordering instructions
  1. Model, name and quantity of load break switch.
  2. If equipped with a fuse, please specify the type, rated voltage and rated current of the fuse.

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