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1、Application

The NDQ3HP bypass automatic transfer switching equipment applies to the automatic transfer between two-way power supplies in the emergency power supply system with the AC rated working voltage of 415V and below, rated frequency of 50/60Hz and rated currentfrom 100A to 5000A. The bypass automatic transfer switching equipment is mainly composed of an automatic transfer switch (ATSE) and a bypass transfer switch (MTSE). Before the automatic transfer switch is pulled out for inspection, testing and maintenance, the load can be powered from the bypass transfer switch on the same side. After the automatic transfer switch is pulled out for inspection, testing and maintenance, the operation will not cause load outage. NDQ3HP is a high-performance PC-level bypass automatic transfer switching equipment with the utilization category of AC-33A, which is especially applicable to hospitals, data financial centers, high-tech enterprises, communication stations, and other places that must continue to supply power for testing, maintenance and inspection of the automatic transfer switch.

Conforming Standards and Certification

GB/T 14048.1-2012 Low-voltage Switchgear and Control Equipment -Part 1: General Rules;

GB/T 14048.11-2016 Low-voltage Switchgear and Control Equipment -Part 6-1: Multiple Function Equipment -Transfer Switching Equipment;

IEC 60947-6-1：2013 Low-voltage switchgear and control gear: Multiple function equipment-Transfer switching equipment.

T/CEEIA 302-2018 Bypass Transfer Switching Equipment and Complete Equipment

NDQ3HP-3200/5000 bypass automatic transfer switching equipment has obtained China Compulsory Certification (CCC) for products and CB certificate.

2、Model and implication

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3、Main technical parameters