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FATECH surge arrester FV50C/3+NPE-275 for 3 phase AC power supply

FATECH surge arrester FV50C/3+NPE-275 for 3 phase AC power supply

Product catalog summary
Specifications:
The document outlines the specifications for a surge protective device (SPD) used in low-voltage power systems. It includes both AC and DC remote control contact definitions, with maximum voltage and current ratings specified for each. For AC, the maximum voltage is 250V and current is 0.5A, while for DC, the maximum voltage is 60V and current is 0.1A. Recommended wire specifications are provided, with single-core wires for AC and multi-core wires for DC.

Model Information:
The models listed include FV50C/3+NPE-150(S), FV50C/3+NPE-275(S), FV50C/3+NPE-320(S), FV50C/3+NPE-385(S), and FV50C/3+NPE-440(S). Models without an 'S' do not have remote control contact functionality.

Standards and Network Type:
The SPD complies with IEC/EN/VDE Class II/C standards and is suitable for TT network types. It offers protection modes for L1, L2, L3-N, and N-PE.

Electrical Characteristics:
Nominal voltage ranges from 110/220V to 220/380V, with a maximum continuous operating voltage (UC) ranging from 150V to 440V. The maximum discharge current (Imax) is 100kA, and the nominal discharge current (In) is 50kA. Voltage protective levels (Up) vary between L-N and N-PE connections.

Performance and Installation:
The SPD has a response time of ≤25ns for L-N and ≤100ns for N-PE. It is recommended to use a 125A back-up fuse. The device features a mechanical disconnection indicator and optional remote control contact. It is designed for mounting on a 35mm symmetrical rail and operates within a temperature range of -40℃ to +80℃.

Design and Features:
The SPD consists of a base part and pluggable protection modules, suitable for lightning protection zones at boundary 1-2. It uses metal oxide varistor components for high discharge capacity and features a Thermo Dynamic Control disconnector for reliable operation. Faults are indicated via a red mark in the inspection window.

Physical Characteristics:
The housing material is UL94 V-0 rated, and the device has an IP20 degree of protection. Dimensions are provided for the device, ensuring compatibility with various installation environments.

Additional Information:
The document includes a reference to the manufacturer's website for further details.
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Catalog excerpts

FATECH surge arrester FV50C/3+NPE-275 for 3 phase AC power supply-1

Surge Protective Device for Low-voltage Power System ♦ Consisting of a base part and MOV + GDT 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-N,N-PE. Remark: if the model number is without“S”, the model is without remote control contact function

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