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type 1 surge protector 1 phase

Item No: FV50B/2-xxx
-Lightning surge protector 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: L-PE, N-PE
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Product Description

1.Coding system


2.Dimension of type1 surge protector FV50B/2-xxx




3.Electrical parameters of type1 surge protector FV50B/2-xxx

Model No. 　 FV50B/2-150 FV50B/2-255 FV50B/2-275 FV50B/2-320 FV50B/2-385
Test class according to IEC61643-11:2011 I
Type of Network TT-TN-IT
Nominal voltage UN 110/220V 220/380V
Rated Voltage (Max. Cont. Operating Voltage) Uc 150VAC 255VAC 275VAC 320VAC 385VAC
Impulse current (10/350μs) Iimp 50kA 50kA 50kA 50kA 50kA
Nominal discharge current (8/20μs) In 50kA 50kA 50kA 50kA 50kA
Voltage protective level at 25kA Up ≤1.8kV ≤1.8kV ≤1.8kV ≤2.0kV ≤2.0kV
Isolation resistance Risol >102MΩ >102MΩ >102MΩ >102MΩ >102MΩ
Response time tA ≤100ns ≤100ns ≤100ns ≤100ns ≤100ns
Recommended back-up fuse 500A
I/O Connections By screw terminal:10-35mm2
By connection bus
Mounting Symmetrical rail (EN50022/DIN46277-3)
Operation temperature range / RH -25℃~+85℃/95%
Degree of protection IP20
Encapsulated Encapsulated
Housing material UL94V0
Disconnection indicator Without
Remote control contact without
Color gray

4.Installation of type1 surge protector FV50B/2-xxx

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