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- FATECH surge arrester FV20C/3-385S for protection og AC 3 phase system
FATECH surge arrester FV20C/3-385S for protection og AC 3 phase system
FATECH surge arrester FV20C/3-385S for protection og AC 3 phase system
The document outlines the specifications for remote control contact in surge protective devices. It details the 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. Models without 'S' do not have remote control contact functionality.
The device consists of a base part and MOV pluggable protection modules, designed for use in lightning protection zones at boundary 1-2. It features metal oxide varistor components with high discharge capacity, low residual voltage, quick response, and reliable control through Thermo Dynamic Control disconnector. It includes a remote signaling contact for control devices and fault indication via a red mark in the inspection window. The protection mode covers L1, L2, L3-PE.
The document lists several models (FV20C/3-150(S), FV20C/3-275(S), FV20C/3-320(S), FV20C/3-385(S), FV20C/3-440(S)) with their respective test class (IEC/EN/VDE Class II/C) and network type (IT). Nominal voltage is 50(60)Hz UN, with rated voltages ranging from 150V to 440V AC. Maximum discharge current is 40kA, nominal discharge current is 20kA, and voltage protective levels range from ≤0.7kV to ≤2.0kV. Response time is ≤25ns, with a recommended back-up fuse of 125A and isolation resistance greater than 10 MΩ.
The device supports multi-core wire connections (4mm ~ 25mm) and mounts on a 35mm symmetrical rail (EN50022/DIN46277-3). It operates within a temperature range of -40℃ to +80℃, humidity of 30% to 90%, and altitude up to 3000m. The degree of protection is IP20, with housing material rated UL94 V-0. It includes a mechanical disconnection indicator (Green: OK, Red: replace) and optional remote control contact.
Catalog excerpts
Surge Protective Device for Low-voltage Power System ♦ Consisting of a base part and MOV pluggable protection modules. ♦ For using in the lightning protection zones concept at boundary 1-2. ♦ The core parts are metal oxide vristor components with high discharge capacity. ♦ Low residual voltage and quick response. ♦ Reliable control thanks to Thermo Dynamic Control disconnector. ♦ With remote signaling contact for control device. ♦ Fault indication via red mark in the inspection window. ♦ Protection mode: L1, L2, L3-PE. Remark: if the model number is without“S”, the model is without remote control contact function
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