255 Class B Lightning Surge Arrester

• Type: Power Source Arrester
• Operation Voltage: Low Voltage
• Certification: ISO9001
• Brand: Fatech
• Iimp: 50ka/Pole
• in: 25ka/Pole
• Model NO.: FV50B/4-255
• Transport Package: 1 Piece in One Into Box, and Then Put Into Outer C
• Specification: CE
• Trademark: FATECH
• Origin: China
• Production Capacity: 10, 000 PCS/Month

Product Description

1. Class B Lightning Surge Arrester FV50B/4-255

-Lightning surgearresters with compact construction design, 
-Used in the lightning protection zones concept at boundary LPZ0B-LPZ1,
-The core parts are spark gap with high discharge capacity,
-35mm2 DIN-rail in accordance with EN 50022/DIN46277-3,
-Low residual voltage and quick response.
-Protection mode: L1, L2, L3-PE, N-PE

2. Electrical parametersoflightning surge arrester (type1 lightning arrester)FV50B/4-255

Model No.	FV50B/4-255
Test class according to IEC61643-1:2005	I
Nominal voltage	UN	230VAC,50(60)Hz
Max. Cont. Operating Voltage)	Uc	255VAC
Impulse Current (10/350μs)	Iimp	50kA/Pole
Nominal discharge current (8/20μs)	In	25kA/Pole
Voltage protective level at In	Up	≤1.5kV
Follow current at Uc	If	100A
Response time	tA	≤100ns
Recommended back-up fuse	250A
I/O Connections	By screw terminal:10-35mm^2 By connection bus
Mounting	Symmetrical rail (EN50022/DIN46277-3)
Operation temperature range	-40ºC~+85ºC
Degree of protection	IP20
Housing material	UL94V0
Remote control contact	Without
Color	Gray