ZGGF50-440 Modular Power Supply Surge Protective Device

Product code : 1490069556

The ZGGF50-440 Modular Power Supply SPD is a 35mm rail mounted surge protective device for various system configurations (TN, TT and IT) for use in the primary power system for protecting installations against direct lightning flashes and induced surges, made from special non-metallic materials, fully sealed designed with the stack discharge technology, and characterized by the high discharge capacity, low residual voltage, no arc leakage, no leakage current, high follow current extinguishing capability, easy connection, etc.

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INTRODUCTION

Features

1 High discharge capacity and low residual voltage;

2 Fully sealed design, no arc leakage, no leakage current, and high follow current extinguishing capability;

3 Working and failure indications;

4 Small-sized, 90mm×36mm×70mm

Technical Data
Operating Environment

Technical Parameters
Circuit Diagram
Configuration
Dimensions: 90mm×36mm×70mm (W×H×D)

Standards Complied
IEC 61643-1:2005       Surge protective devices connected to low-voltage distribution systems - Part 1: Performance requirements and testing methods
EN 61643-11:+A11:2007 Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and tests
UL 1449:2010               UL 1449 Third Edition
YD/T 1235.1-2002        Technical requirements for surge protective devices connected to low-voltage distribution systems of telecommunication stations / sites
YD/T 1235.2-2002        Testing methods for surge protective devices connected to low-voltage distribution systems of telecommunication stations / sites
Installation, Usage And Maintenance
Installation

1 The SPD can be applied to the single-phase and three-phase TT/TN/IT power systems after some combination as required, to satisfy protection needs of different power systems. The SPD is installed on the standard 35mm guide rail. With the “Kevin Wiring Mode” preferred, the following wiring method can also be adopted.

2 The SPD should be installed behind the fuse of the power supply circuit. The capacity of the fuse can not exceed 500A gL/gG/gD; otherwise a 500A gL/gG/gD fuse should be provided in the surge protection branch circuit.

3 Refer to Fig. 3 for connection, according to the marks on the SPD. The insulated copper connecting line with the sectional area not less than 10mm2, withstand voltage not lower than 500V AC, and stripping length of 13～15mm is the best. The line should be as short as possible, i.e., not exceeding 0.5m. The grounding is reliable, meeting relevant standard requirements. The SPD can be arbitrarily combined with the ZGGQ100-255 Modular Power Supply SPD, to satisfy protection needs of different power supply systems.

Wiring Diagram

Usage and Maintenance

1 After failure of SPD, the “Green” indicator on the panel is off, showing the SPD should be replaced.

2 The grounding system of the SPD should be checked at any moment in normal use, especially in lightning seasons, to keep it in a good state all the time; otherwise, the lightning protection effect of the SPD will be influenced more or less. When the grounding wire PE opens, the SPD will lose its protective effect.