Class I/B 25kA surge protector

FV25B/3-275 S


-Class I/B 25kAsurge protector, 3poles.
-Consisting of base part and3 MOV pluggable modules.
-For using in the lightning protection zones concept at boundary 1.
-The core parts are metal oxide vristor components with high discharge capacity.
-Low residual voltage and quick response
-Reliable control thanks to Thermo Dynamic Control disconnector.
-With remote signaling contact for control device.
-Fault indication via red mark in the inspection window.
-Protection mode: L1,L2,L3-PE.

1.Coding system



2.Dimension and circuit of type1 surge arrester FV25B/3-275S


3.Electrical parameters of type1 surge arrester FV25B/3-275S

Test class according to IEC61643-1:2005
I
Type of Network
TT, TN
Nominal voltage
UN
230V/50(60)Hz
Rated Voltage (Max. Cont. Operating Voltage)
Uc
275VAC
Impulse discharge current (10/350μs)
Iimp
25kA
Nominal discharge current (8/20μs)
In
50kA
Voltage protective level
Up
1.8kV
Isolation resistance
Risol
>102
Response time
tA
25ns
Recommended back-up fuse
160A
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
Disconnection indicator
Mechanical indicator
Remote control contact
Yes
Color
Gray


4.Installation of type1 surge arrester FV25B/3-275S




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