International Electrotechnical Commission

Direct current (DC) plugs and socket-outlets for information and communication technology (ICT) equipment installed in data centres and telecom central offices Part 1: Plug and socket-outlet system for 2,6 kW - Edition 1.0
 N TS 62735-1

Annotation

This part of IEC 62735, which is a Technical Specification, applies to plugs and fixed socketoutlets for class I equipment with two active contacts plus an earthing contact, a rated power of 2,6 kW and a rated voltage range from 294 V to 400 V d.c. They are intended to power d.c. information and communication technology equipment only, products according to IEC 60950.

The accessories according to this part of IEC 62735 are intended to be used by ordinary persons in data centres only where the value of the d.c. voltage distribution system is defined as follows:

– 380 V with a tolerance of ±20 V for installations with no backup battery or with a voltage regulation system;

– 380 V with a voltage range of 294 V to 400 V for installations with a backup battery where voltage regulation is not guaranteed;

– the voltage value between each live conductor and earth does not exceed 200 V d.c. during normal operation;

– there are two abnormal voltage ranges (duration below 10 min):

260 V up to 294 V, and

above 400 V to 410 V.

The maximum current of the plug and the socket-outlet is

– 6,5 A when the voltage between live contacts is 400 V d.c.,

– 8,8 A when the voltage between live contacts is 294 V d.c.