Product Details

FN7-12DR Load Break Switch 11kv Load Break Switch 12kv load break switch

Product Overviews

FN7-12DR is used for three-phase AC 5OHz 12KV power systems. They used for breaking load current and controlling short-circuit current. FN7(C)-12 type H.V load switch-fuse combination is based on the FN7-12 series H.V load switch, then put the operating mechanism on the side, as customer order.

Model&Meaning

Working Conditions

1. The altitude does not exceed 1000m.

2. The ambient air temperatrue: Max:+40°c, Min:-25°c.

3. The relative humidity of air daily average=95%, monthly average=90%

4. The ambient air should not be obviously polluted by corrosivity and the flammability gas steam, etc

5. The working situation without frequent violent.

Specification

Classification	Types	DS	DX	L	R	RA	F
Classification	Types	Earth switch at the wire - in end	Earth switch at the wire - out end	Interlock device	Fuse box	Striking fuse box	Off device by motor
Without tripper	FN7-12	-	-	-	-	-	-
	FN7-12DSL	√	-	√	-	-	-
	FN7-12DXL	-	√	√	-	-	-
	FN7-12R	-	-	-	√	-	-
	FN7-12DSLR	√	-	√	√	-	-
	FN7-12DXLR	-	√	√	√	-	-
With striking tripper	FN7-12RAF	-	-	-	-	√	√
	FN7-12DSLRAF	√	-	√	-	√	√
	FN7-12DXLRAF	-	√	√	-	√	√

Rated voltage (KV)	Insulation Level		Rated current(A)	4S heatstabling current(KA)	Machine stabling current [peak] (KA)	Short-circuit controlling current(KA)
	1min power frequency withstand voltage (KV)	Lighting impuslse resisting voltage [peak] (KA)
12	42	48	400	12.5	31.5	31.5
	48	85	630	20	50	50

Outline Drawing