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FATECH surge arrester FV50B/4-255 for ac power protection

FATECH surge arrester FV50B/4-255 for ac power protection

Product catalog summary
Product Overview: The FV50B/4 is a surge protective device designed with a unique seal construction featuring a multilayer spark gap, ensuring no spark emission outside the housing. It includes a working status indication window and optional remote control contacts.
Specifications:
  • Maximum Continuous Operating Voltage (Uc): Options available are 150V~, 255V~, 275V~, 320V~, and 385V~.
  • Test Class: IEC/EN/VDE Class I/B.
  • Network Type: TT, TN.
  • Protection Mode: L1, L2, L3, N-PE.
  • Nominal Voltage: 110/220V~ and 220/380V~.
  • Impulse Current (10/350μs): 50kA.
  • Nominal Discharge Current (8/20μs): 50kA.
  • Voltage Protective Level (Up): ≤1.8kV for lower voltages, ≤2.0kV for higher voltages.
  • Response Time: ≤100ns.
  • Recommended Back-up Fuse: 500A.
  • Isolation Resistance: >10 MΩ.
Installation and Operation:
  • Mounting: 35mm Symmetrical rail (EN50022/DIN46277-3).
  • Operation Temperature Range: -40℃ to +80℃.
  • Humidity Range: 30% to 90%.
  • Altitude: Up to 3000m.
  • Degree of Protection: IP20.
  • Housing Material: UL94 V-0.
  • Disconnection Indicator: Mechanical indicator (Green: OK, Red: Replace).
Remote Control Contact: Optional feature with port definitions for AC and DC signals, specifying maximum voltage and current, and recommended wire specifications.
Applications: Primarily used in lightning protection zones (LPZ) 0 to 1, suitable for building entrance lines, elevators, and mineral industries.
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Catalog excerpts

FATECH surge arrester FV50B/4-255 for ac power protection-1

Surge Protective Device for Low-voltage Power System ♦ Adopt unique designed seal construction with multilayer spark gap, no spark emission outside the housing. ♦ With working status indication window, and remote control contacts. ♦ Max.continuos operating voltage(Uc)150V~,255V~, 275V~,320V~,385V~for your option. ♦ Mainly used in lightning protection zone (LPZ) 0 to 1, widely used in building entrance lines elevator, mineral, and so on. ♦ 3 phase,4 poles. Remark: if the model number is without“S”, the model is without remote control contact function

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.