China Load switch 400A 630A 50Hz interlock load breaker switch with striker fuse factory and manufacturers

Load switch 400A 630A 50Hz interlock load breaker switch with striker fuse

Short Description:

FN7-12DR type AC high voltage load breaker switch( below called as LBS) is a new type indoor high voltage LBS, suitable for AC power system with 3-phase AC 50HZ, rated voltage 12KV,act as break of loading current and close for short circuit current.FN7-12 type is based on the FN12,added the side operation actuator, to make the installation more simple and convenient, and meet different requirements of the order needs.

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Product Detail

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Main Technical Parameters

Main Specitications

Description		Model	DS	DS	L	R	RA	F	Application
Description		Model	At incoming side	At outgoing side	interlock	fuse	Fuse with striker	Elec.OFF Equip	Application
LBS	Without striker fuse	FN7-12	-	-	-	-	-	-	line
		FN7-12DSL	△	-	△	-	-	-
		FN7-12DXL	-	△	△
		FN7-12R	-	-	-	△	-	-	transformer
		FN7-12DSLR	△	-	△	△	-	-
		FN7-12DXLR	-	△	△	△	-	-
	With striker fuse	FN7-12RAF	-	-	-	-	△	△	transformer
		FN7-12DSLRAF	△	-	△	-	△	△
		FN7-12DXLRAF	-	△	△	-	△	△

Rated Parameters(KV)

Rated Voltage(KV)		12
Isulation level	Power Frequency Volt withstand(1 Min)	Phase to phase/phase to earth 42	Phase to phase/phase to earth 48
	Lightening Impulse Volt withstand	Phase to phase/phase to earth 75	Phase to phase/phase to earth 85
Rated Current		400	630
Thermal Stable Current		12.5	20
Dynamic Stable Current		31.5	50
Short Circuit Breaking Current		31.5	50