torna su
close Close

CEI membership discount

Dear customer,
our systems show that your name is connected to a company associated with CEI: you would therefore be entitled to thediscount reserved for our members for CEI products and services. To check the validity of the association and benefit from the discounts, it is necessary to enter the register number assigned to your company in the box below.

VALIDATE AND CONTINUE
You can continue shopping even without entering the membership register number, but you will not have access to dedicated discounts.

CONTINUE WITHOUT DISCOUNTS

The membership register number has been correctly entered.
From now on, after logging into your MyNorma account, you can purchase our products at the price reserved for our members.

doneCONTINUE PURCHASING
Current help_outline
mode_commenti add_alert notifications star_border star

BS EN IEC 61439-2:2021

BS EN IEC 61439-2:2021
standard
BSI
BSI
Standard help_outline
Designation:  BS EN IEC 61439-2:2021
Publication Date:  2021-05
Language:  EN
isbn:  978 0 580 86719 4
IEC 61439-2:2020 defines the specific requirements for the power switchgear and controlgear assembly (abbreviated ‘PSC-assembly’ throughout this document see 3.1.101) as follows:
  • assemblies for which the rated voltage does not exceed 1? 000 V AC or 1? 500 V DC;
  • assemblies designed for a nominal frequency of the incoming supply or supplies not exceeding 1 ?000 Hz;
NOTE 1?Frequencies above 1 kHz are considered as high frequencies, see also IEC 60664-1:2007, 5.3.3.2.5 to take into account additional constraints to insulation coordination.
  • assemblies intended for indoor and outdoor applications;
  • stationary or movable assemblies with or without enclosures;
  • assemblies intended for use in connection with the generation, transmission, distribution and conversion of electrical energy, and for the control of equipment consuming electrical energy and for associated data processing;
  • assemblies designed for use under special service conditions, for example in ships and in rail vehicles, provided that the other relevant specific requirements are complied with;
NOTE 2?Supplementary requirements for assemblies in ships are covered by IEC 60092-302-2.
This third edition cancels and replaces the second edition published in 2011. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
  1. addition of Annexes DD, EE and FF for assemblies for use in photovoltaic installation;
  2. clarification of the requirements for forms of internal separation and the addition of the requirement, when the form of separation is higher than 1, all parts within the functional unit compartment that remain live when the functional unit is switched off shall be protected to at least IPXXB;
  3. alignment with the structure of IEC 61439-1:2020;
  4. addition of temperature-rise verification for; (i) temperature-rise verification of assemblies with natural cooling and circuits rated above 1 600 A by a combination of comparison with a reference design and calculation, and; (ii) temperature-rise verification of assemblies with active cooling and rated currents up to 1 600 A.
  5. consideration of IP with active cooling.

Relations

Replaces: BS EN 61439-2:2011

See also

IEC 61439-2 Ed3.0
EN 61439-2 Ed3.0

International Coding Standard (ICS)

29.130.20
Low voltage switchgear and controlgear
* Including switchgear and controlgear assemblies

Annotation

PLEASE NOTE: links will be automatically recognized and made clickable when the annotation will be published

send
shopping_cart Starting from € 336.26

Standard Evolution

close

ICS

International Classification for Standards (ICS) is an international classification system for technical standards.

The ICS is a hierarchical classification organized on three levels.

Level 1 covers the main fields of activity in standardization, e.g. road vehicle engineering, agriculture, metallurgy.

Each field has a two-digit notation, e.g.

  43    Road Vehicle Engineering

The main fields are subdivided into groups (level 2). The notation of a group consists of the field notation and a three-digit group number, separated by a point, e.g.

  43.040    Road vehicle systems

Some groups are further divided into sub-groups (level 3). The notation of a sub-group consists of the group notation and a two-digit number, separated by a point, e.g.

  43.040.20 Lighting, signaling and warning devices

You can identify the ICS code of your interest by typing the code or a keywordword in the dropdown ICS field, and by selecting one of the filtered results.

Search also in the summary/description of the standard

By flagging this control, the search for keywords will not be limited to the Standard Number and Title fields, but will also be performed in the Abstract of the standard.

This way, you will get more results.

You should use this option when you can not find the desired result with the standard approach and it is necessary to extend the scope of the search: by increasing the number of results, you will increase the number of non-relevant elements, as well.