Type 1 Lightning Arrester 50kA FV50B/4

FV50B/4-xxx

-Lightning surge arresters 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

1.Coding system


2.Dimension of lightning surge arrester (type1 lightning arrester) FV50B/4-xxx



3.Electrical parameters of lightning 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:10-35mm2
By connection bus
Mounting
Symmetrical rail (EN50022/DIN46277-3)
Operation temperature range
-40~+85℃
Degree of protection
IP20
Housing material
UL94V0
Remote control contact
Without
Color
Gray

4.Installation of lightning surge arrester (type1 lightning arrester) FV50B/4-xxx

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