load break switch manufacturer

1.easy installation 2.different types available 3.Advanced design and steady performance.

DESCRIPTION

As we introduced the high technology from overseas and combined the demands from internal regions,we research and develop the new products in this electrical industry.

FN7-12DR is used in three-phase AC power network of AC 50Hz, rated voltage 12KV for breaking load current and controlling short-circuit current.

FN7(C)-12 type H.V. load switch and fuse box is based on the FN7-12 series H.V. load switch with operating mechanism, it will be easy intalled,,and meet the users' demands,

service condition

1. The ambient air temperature: MAX.: +40°C, Min.: -10°C.2. The altitude does not exceed 1000m.3. The relatire humidity of air daily average ≤90%, monthly average ≤ 95%.4. The ambient air should not be obviously polluted by corrosivity or the flammability gas and steam. etc.5. The working situation without frequent violent.

specification

Classification	Types	DS	DX	L	R	RA	F
		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	YES	-	YES	-	-	-
	FN7-12DXL	-	YES	YES	-	-	-
	FN7-12R	-	-	-	YES	-	-
	FN7-12DSLR	YES	-	YES	YES	-	-
	FN7-12DXLR	-	YES	YES	YES	-	-
With striking tripper	FN7-12RAF	-	-	-	-	YES	YES
	FN7-12DSLRAF	YES	-	YES	-	YES	YES
	FN7- 12DXLRAF	-	YES	YES	-	YES	YES

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

OVERALL DIMENSION

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