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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

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From now on, after logging into your MyNorma account, you can purchase our products at the price reserved for our members.

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CEI EN 60947-4-1/A2

CEI Classification: 17-50;V2

Apparecchiature a bassa tensione
Parte 4-1: Contattori e avviatori - Contattori e avviatori elettromeccanici
standard
CEI
CEI
Standard
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Publication Date: 2006-04
Date Of Withdrawal (DOW): 2007-01
ValidFrom: 2006-06
Language: EN
Pages: 40
Issue Num.:  8236 E
Commitee: CEI-SC121A, CEI-CT121
EU Directives Low voltage (LVD), Electromagnetic Compatibility (EMC)
shopping_cart Starting from € 65.00
La presente Variante contiene aggiunte e modifiche a molti paragrafi di tutti gli articoli e tre nuovi Allegati.
L'Allegato H è normativo e riguarda le funzioni estese dei relè elettronici di sovraccarico. Informativi sono invece l'Allegato G, sulle correnti e le potenze d'impiego nominali degli apparecchi di manovra per macchine elettriche, e l'Allegato I, sui contattori AC1 per uso con motori comandati da apparecchi a semiconduttori.
Questa Variante viene pubblicata dal CEI in una prima fase nella sola lingua inglese, per consentirne l'immediato utilizzo da parte degli utenti interessati, nel rispetto della data di pubblicazione fissata dagli Enti Normatori internazionali.
Successivamente il CEI pubblicherà, in un nuovo fascicolo - ma come medesima edizione - la stessa Variante in versione italiano-inglese; tale nuova versione avrà la stessa validità della presente.
La presente Variante recepisce il testo originale inglese della Pubblicazione IEC e pertanto consta delle sole pagine dispari.

See also

IEC 60947-4-1/A2:2005
EN 60947-4-1/A2:2005

International Coding Standard (ICS)

29.130.20
Low voltage switchgear and controlgear
* Including switchgear and controlgear assemblies
29.120.99
Other electrical accessories

Annotation

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Standard Evolution

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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.