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FV50B/1-xxx S series

Product catalog summary

Specifications:
The document outlines the specifications for a surge protective device designed for low-voltage power systems. It includes both AC and DC remote control contact definitions. 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. Models without an 'S' in their number do not have remote control contact functionality.

Model Numbers:
The models listed are FV50B/1-150(S), FV50B/1-255(S), FV50B/1-275(S), FV50B/1-320(S), and FV50B/1-385(S).

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:
The nominal voltage is 110~220V at 50(60)Hz, with a maximum continuous operating voltage (Uc) ranging from 150V to 385V depending on the model. The impulse current is rated at 50kA, with a nominal discharge current of 50kA. The voltage protective level (Up) is ≤1.8kV for most models, except for the 320V and 385V models, which are ≤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. It uses multi-core wire connections for L-N and PE, with specific wire size recommendations. It is mounted on a 35mm symmetrical rail (EN50022/DIN46277-3). The operational temperature range is -40℃ to +80℃, with humidity between 30% and 90%, and it can be used at altitudes up to 3000m. The degree of protection is IP20, and the housing material is UL94 V-0 rated.

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 and is suitable for building entrance lines, elevators, and mineral applications.

Dimensions:
The dimensions of the device are 36mm x 90mm x 69mm x 49mm.

Website:
For more information, visit www.fatech-surge-protection.com.

Catalog excerpts

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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