BS EN 60947-2 PDF

Telephone: +41 22 02 11 Telefax: +41 22 03 00 E-mail: [email protected] Web: INTERNATIONAL. STANDARD. IEC. Third edition. So how many are aware of the difference between these two Standards? I had these highlighted to me a few years ago and it was news to me. BS EN applies to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which.

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In order to use AC breaker in DC be you should follow manufacturer recommendations. I have never confused them yet maybe because its not much since I started working. I would recommend to find the answer by contacting technical support team in the country. But somewhere on the breaker it says Icu 20 KA.

This site uses cookies. I am confused with two standards for the same breaker. Bd, my password is: You can download them from official standardization bureau sites.

Or take the tripping characteristics: Reply Dear Max, you should verify the inrush current of the inductive load first. I am from India. And I did engineering from electronics and communication in Supersedes BS EN This standard does not deal with the verification of operation under such pre-determined conditions.

By continuing to use this site, you are agreeing to our use of 609447-2. Your name or email address: Dear Sumedha, Test procedures are explained in the mentioned standards.


IEC 60898-1 and IEC 60947-2: a tale of two standards

Discussion in ‘ Industrial Electrician Talk ‘ started by essexSep 3, Does it mean that the trip kA is different when the breaker enn used for residential or non residential use?

No, create an account now. So how many are aware of the difference between these two Standards?

Reply Dear Koks, Yes it is safe choice. Stil… 1 Can we say it is for industrial application if a MCB manufactured as per IEC only 2 According to these standards any manufacturers could provide life time warranty. One more question regarding RCCB. Still a lot of DBs with only s installed. You can view our current job opportunities, apply online or send a spontaneous application here: The rating is the same in DC, there is a new magnetic threshold and voltage limitation.

Unfortunately I found no value for Icu there. View Responses 57 Responses I am from India. Consequences can be dire if residential CBs are used instead of industrial ones. Usually these circuit breakers sold by electrical retailers: And also a lot of manufacturers have a cross over of standards when they produce devices so you really have to look at their documentation.

BS EN – Low-voltage switchgear and controlgear. Circuit-breakers

Pollution degree 2, impulse voltage 4kV, isolation voltage is the same as nominal voltage V. Reply I have started working in the industrial sector and am having trouble completing test certs for installations fed from panels. Dear Mostafa, in IEC it is mainly used definition of Icn rated nominal breaking capacity but not Icu ultimate breaking capacity and it makes the difference. Icu is given only for range 5SY8.


The best way to avert them is tightly worded, highly enforced national regulations. For certain specific applications for example traction, rolling rn, marine service particular or additional requirements may be necessary. Difference is in the breaking technology and size.

IEC AND IEC a tale of two standards

Kindly let me know if it is available on the Schneider site. Dear Max, you should verify the inrush current of the inductive load first. Really very useful information. Want access to British Standards?

BS EN 60947-2:2017

Again there may be more recent versions of the document. Icu, Ics, Ue, Uimp, pollution degree, ect. The requirements and test methods for electromagnetic compatibility of circuit-breakers are contained in Annex J.

The additional requirements for circuit-breakers with electronic over-current protection are contained in Annex F. If such recommendations do not exist — its better to use dedicated DC offer.