Type 1 surge arresterFV30B+C/4-275 S

2型 for power supplies three-phase

1.Description Fatech Class I+II lightning and surge arresters, is suitable for TT and TN earthing systems. 3P+N construction lightning and surge arresters based on large power metal oxide varistors and assemble a metal oxide varistor and a gas discharge tube in series between phase line and neutral line, with no follow current. 2. Characteristics 1) Consisting of a base part and MOV pluggable protection modules. 2) For using in the lightning protection zones concept at boundary 1-2. 3) The core parts are metal oxide varistor components with high discharge capacity. 4) Low residual voltage and quick response. 5) Reliable control thanks to Thermo Dynamic Control disconnector. 6) With Remote signaling contact for control device. 7) Fault indication via red mark in the inspection window. 8) Protection mode ---L1,L2,L3,N-PE 3. Electrical Parameters 1) Test class IEC/EN/VDE: Class I+II/B+C/T1+T2 2) Type of Network: TT,TN 3) Protection mode: L1,L2,L3,N-PE 4) Nominal voltage 50(60)Hz Un: 220V/380V~ 5）Rated Voltage (Max.Cont. Operating Voltage) Uc: 275V~ 6) Max. discharge current (8/20μs) Imax: 60kA 7) Nominal discharge current (8/20μs) In: 30kA 8) Response time tA: ≤25ns 9) Recommended back-up fuse: 160A 10) I/O Connections: Multi core wire:4-25mm2 11) Mounting: 35mm Symmetrical rail (EN50022/DIN46277-3) 12) Operation temperature range / humidity / altitude: -40℃~+80℃/30%~90%/3000m 13) Degree of protection: IP20 14) Housing material: UL94V0 15) Disconnection indicator: Mechanical indicator (Green: OK, Red: replace) 16) Remote control contact: Optional 17) Impulse current (10/350μs) Iimp: 7kA