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Type 1 surge arrester FV50B/2-255S
for power suppliessingle-phaseAC

type 1 surge arrester
type 1 surge arrester
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Characteristics

Type
type 1
Applications
for power supplies
Other characteristics
single-phase, AC, 2-pole, DIN rail, low-voltage
Current

50,000 A

Voltage

220 V

Max.: 255 V

Description

1.Characteristics 1) Adopt unique designed seal construction with multilayer spark gap, no spark emission outside the housing. 2) With working status indication window, and remote control contacts. 3) Max.continuous operating voltage (Uc) 255V~ 4) Mainly used in lightning protection zone (LPZ) 0 to 1, widely used in building entrance lines elevator, mineral, and so on. 5) 1 phase, 2 poles. 2. Electrical Parameters 1) Test class IEC/EN/VDE: Class I/B/T1 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: 255V~ 6) Impulse current (10/350us) Iimp: 50kA 7)Nominal discharge current (8/20μs) In: 50kA 8) Response time tA: ≤100ns 9) Recommended back-up fuse: 500A 10) I/O Connections: L-N: Multi core wire:10-35mm2; PE: Multi core: > 16mm2 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

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