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FN AC High-voltage Load Switch

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Technical data

Rated voltage(kV) Highest voltage(kV) Rated current(A) Industrial frequency voltage withstand in 1min(kV) 4S thermal stable current (effective value)(A)
12 12 400 42/48 12.5
12 12 630 42/48 20
Active stable current (peak value)(A) Short circuit close current (A) Rated open current (A) Rated transfer current (A)
31.5 31.5 400 1000
50 50 630 1000
Type Full type DS Earthing switch at inlet position DX Earthing switch at inlet position L Interlocking device R Fuse R Impulse fuse F Electric drive open device
Without release FN7-12 - - - - - -
FN7-12DSL - - - -
FN7-12DXL - - - -
FN7-12R - - - - -
FN7-12DSLR - - -
FN7-12DXLR - - -
With impulse release FN7-12RAF - - - -
FN7-12DSLRAF - -
FN7-12DXLRAF -
Rated data of fuse
Type Rated voltage(kV) Rated current(A) Rated current of fuse link(A)
SDLA*J 12 40 6.3, 10, 16, 20, 25, 31.5, 40
SFLA*J 12 100 50, 63, 71, 80, 100
SKLA*J 12 125 125

Overall and mounting dimensions(mm)


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