3 phase 50kA@10/350us type 1+2 surge arrester

FV50B+C/4-275(S)

- type 1+2 surge arrestors consisting of 1pc Spark Gap based SPD + 1pc MOV based SPD.
-Low residual voltage and quick response.
-Reliable control thanks to Thermo Dynamic Control disconnector.
-With remote signaling contact for control device for your option.
-Fault indication via red mark in the inspection window.
-Protection mode: L1-N, L2-N, L3-N, N-PE.
1.Dimension and circuit of surge arrestors (type1+2 surge arrestors) FV50B+C/4-275S




2.Electrical parameters of surge arrestors (type1+2 surge arrestors) FV50B+C/4-275S

Test class according to IEC61643-1:2005
I+II
Nominal voltage
UN
230VAC,50(60)Hz
Max. Cont. Operating Voltage)
Uc
275VAC
Impulse Current (10/350μs)
Iimp
50kA
Voltage protective level at 50kA
Up
1.5kV
Response time
tA
Class B: 100ns, Class C: 25ns
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
Thermal Disconnector
Internal
Remote control contact
Yes
Color
Gray
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