EN 50557:2011

Requirements for automatic reclosing devices (ARDs) for circuit breakers-RCBOs-RCCBs for household and similar uses

Publication date:   Jan 18, 2012

General information

99.60 Withdrawal effective   Jan 17, 2021

CENELEC

CLC/TC 23E Circuit breakers and similar devices for household and similar applications

European Norm

29.120.50   Fuses and other overcurrent protection devices

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Scope

This European Standard applies to Automatic Reclosing Devices (hereinafter referred to as “ARD”) for household and similar uses, for rated voltage not exceeding 440 V a.c. intended to be used in combination with circuit-breakers and/or RCCBs and/or RCBOs, and designed either for factory assembly or for assembly on site.
These devices are intended to reclose main protective devices (hereinafter referred to as “MPD”) such as circuit-breakers complying to EN 60898 1 and/or EN 60898 2, RCCBs complying to EN 61008 1 and RCBOs complying to EN 61009 1 after tripping of those devices in order to re-establish continuity of service.
In detail, this European Standard applies to the following types of ARD:
 ARD with assessment means, reclosing only if both the prospective line current and the prospective earth-fault current do not exceed given values;
 ARD with assessment means, reclosing only if the prospective line current does not exceed a given value;
 ARD with assessment means, reclosing only if the prospective earth-fault current does not exceed a given value;
 ARD that reclose without any assessment.
NOTE 1 The assessment cannot substitute the verifications required by HD 60364 6:2007.
NOTE 2 The requirements and tests for the assessment function in IT systems are under consideration.
This European Standard does not apply to ARDs with multiple settings adjustable by means accessible to the user in normal service.
This European Standard states:
 the terms and definitions used for ARD (Clause 3);
 the classification of ARD (Clause 4);
 the characteristics of ARD (Clause 5);
 the preferred values of the operating and influencing quantities (Clause 5);
 the marking and information to be provided for ARD (Clause 6);
 the standard conditions for installation and operation in service (Clause 7);
 the requirements for construction and operation (Clause 8);
 the list of minimum requirements to be tested (Clause 9).

Related legislation

Legislation related to this standard

2004/108/EC

Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC

Harmonized/Supporting
2006/95/EC

Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)

Harmonized/Supporting
2014/30/EU

Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)

Harmonized/Supporting
2014/35/EU

Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits

Harmonized/Supporting

Life cycle

NOW

WITHDRAWN
EN 50557:2011
99.60 Withdrawal effective
Jan 17, 2021

REVISED BY

PUBLISHED
EN 63024:2018