IEC 61535:2019 RLV 
Redline version

Installation couplers intended for permanent connection in fixed installations


Do you need a multi-user copy?




IEC 61535:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 61535:2019 applies to two-wire, up to five-wire installation couplers, including earth, if provided, with a rated voltage up to and including 500 V AC or DC and a rated connecting capacity up to and including 10 mm2 for permanent connection in electrical installations. Installation couplers with additional contacts for voltages other than mains voltages are outside the scope of this document. This second edition cancels and replaces the first edition published in 2009 and Amendment 1:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- enlargement of the scope to DC application;
- addition of further requirements as regards DC application (marking, etc.), no additional test procedures were deemed necessary; however some modifications were necessary in the normative text;
- changes and enhancement of the field of application of installation couplers into outdoor applications;
- addition of a suitable temperature range;
- updating of the list of normative references, modified to undated references, where possible.

Look inside

Additional information

Publication typeInternational Standard
Publication date2019-10-16
Available language(s)English
TC/SCTC 23 - Electrical accessoriesrss
ICS29.120.99 - Other electrical accessories
Stability date  2021
File size3882 KB

The following test report forms are related:

Share this page

Share your publications

Learn how to share your publications with your colleagues, using networking options.

Payment information

Our prices are in Swiss francs (CHF). We accept all major credit cards (American Express, Mastercard and Visa), PayPal and bank transfers as form of payment.

Keep in touch

Keep up to date with new publication releases and announcements with our free IEC Just Published email newsletter.

Contact customer services

Please send your enquiry by email or call us on +41 22 919 02 11 between 09:00 – 17:00 CET Monday to Friday.