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FATECH ELECTRONIC (FOSHAN) CO., LTD
FATECH surge arrester FV50B/1-150 for ac power supply

FATECH surge arrester FV50B/1-150 for ac power supply

Product catalog summary

Specifications:
The document outlines the specifications for a surge protective device designed for low-voltage power systems. It includes details on remote control contact, signal access range, and recommended wire specifications for both AC and DC systems. For AC, the maximum voltage is 250V with a current of 0.5A, using single-core wire up to 1.5mm. For DC, the maximum voltage is 60V with a current of 0.1A, using multi-core wire up to 1.3mm.

Model Information:
Models include FV50B/1-150(S), FV50B/1-255(S), FV50B/1-275(S), FV50B/1-320(S), and FV50B/1-385(S). If the model number lacks an 'S', it does not have a remote control contact function.

Test Class and Network Type:
The device is tested under IEC/EN/VDE Class I/B and is suitable for TT, TN, and IT network types. It offers protection in L/N-PE mode.

Electrical Characteristics:
Nominal voltage is 110~220V at 50(60)Hz, with a rated voltage (UC) ranging from 150V to 385V. The impulse current is 50kA, and the nominal discharge current is also 50kA. The voltage protective level (Up) is ≤1.8kV for most models, with some at ≤2.0kV. The response time is ≤100ns, and the recommended back-up fuse is 500A.

Physical and Environmental Specifications:
The device has an isolation resistance greater than 10 MΩ. I/O connections for L-N use multi-core wire ranging from 10mm to 25mm, and PE uses wire greater than 16mm. It mounts on a 35mm symmetrical rail (EN50022/DIN46277-3). The operational temperature range is -40℃ to +80℃, with humidity between 30% and 90%, and altitude up to 3000m. The degree of protection is IP20, and the housing material is UL94 V-0.

Additional Features:
The device includes a mechanical disconnection indicator (green for OK, red for replace) and optional remote control contact. It features a unique seal construction with a multilayer spark gap to prevent spark emission outside the housing. It is primarily used in lightning protection zones (LPZ) 0 to 1, suitable for building entrance lines, elevators, and mineral applications.

Catalog excerpts

FATECH surge arrester FV50B/1-150 for ac power supply-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. ♦ 1 pole. Remark: if the model number is without“S”, the model is without remote control contact function

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