Type 1 surge arrester FVB12.5B+C/2-275(S)

type 2for power suppliesAC

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) Surge protective device with special design for saving installation space--- width 18mm/pole. 2) High discharge current--- Iimp12.5kA per pole. 3) Each pole with one indication window, indication window for clear display of SPD status. 4) Remote controlling function for your option. 5) Pluggable module--- convenient for maintenance. 6) Protection mode --- L-PE,N-PE 7) 1 phase, 2 poles. 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: L-PE,N-PE 4) Nominal voltage 50(60)Hz Un: 220V~ 5）Rated Voltage (Max.Cont. Operating Voltage) Uc: 275V~ 6) Max. discharge current (8/20μs) Imax: 80kA 7) Nominal discharge current (8/20μs) In: 40kA 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: 12.5kA