CEI 23-133 PDF

This Harmonization Document applies to residual current-operated devices (RCD) incorporated in, or specifically intended for use with two pole socket-outlets, with provision of earthing of the socket outlet for household and similar use (SRCD: socket-outlet residual current devices).

“SRCDs are only intended to provide supplementary protection downstream of the SRCD. SRCDs are intended for use in circuits where the fault protection and additional protection are already assured upstream of the SRCD.”

NOTE 1 Void.

NOTE 2 Void

NOTE 3 Void.

SRCDs are neither intended to provide an isolation function nor intended to be used in IT systems.

NOTE 4 For SRCDs intended to provide isolation or fault protection, or to be used in IT systems, IEC 61008-1 or IEC 61009-1 should be used, as applicable, in conjunction with the national requirements for socket outlets of the country where the product is placed on the market.

NOTE 5 Requirements and testing for SRCDs intended to be used in IT systems are under consideration.

SRCDs are not used in distribution boards. They are not intended for the protection of a complete distribution circuit or a complete final circuit. These products are intended to be installed

- in boxes in compliance with IEC 60670-1, 

- or in cable trunking systems in compliance with the IEC 61084 series, 

- or in power track systems in compliance with the IEC 61534 series, 

- or in boxes according to one of the above standards adjacent to socket-outlet boxes.

They are not intended to be used in enclosures or distribution boards in conformity with IEC 60670-24, IEC 61439-1 or IEC 61439-3.

RCDs for household and similar use not covered by the scope of this standard are covered by IEC 61008-1 or IEC 61009-1. SRCDs energized from batteries, or a circuit other than the one powering the loads, are not covered by this standard.

The residual current device incorporates the functions of detection of the residual current, of comparison of the value of this current with the residual operating value and of opening the protected circuit when the residual current exceeds this value.

The maximum rated residual operating current is 30 mA.

The maximum rated current is 16 A for devices with a rated voltage not exceeding 250 V a.c:

NOTE 6 Void.

NOTE 7 Void