IEC 60309-4:2021 PRV 
Pre release version

Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes - Part 4: Switched socket-outlets with or without interlock


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This Final Draft International Standard is an up to 6 weeks' pre-release of the official publication. It is available for sale during its voting period: 2021-03-19 to 2021-04-30. By purchasing this FDIS now, you will automatically receive, in addition, the final publication.

IEC 60309-4:2021 applies to self-contained products primarily intended for industrial use, either indoors or outdoors that combine the following items within a single enclosure:
- a fixed or portable socket-outlet according to IEC 60309-1 or IEC 60309-2 with a rated operating voltage not exceeding 1 000 V DC or 1 000 V AC with a frequency not exceeding 500 Hz and a rated current not exceeding 800 A;
- a switching device.
This second edition cancels and replaces the first edition published in 2006 and Amendment 1:2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- updated in order to take into account the technical revisions to IEC 60309-1 and to IEC 60309-2.

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Additional information

Publication typeInternational Standard
Publication date2021-03-19
Available language(s)English
TC/SCTC 23/SC 23H - Plugs, Socket-outlets and Couplers for industrial and similar applications, and for Electric Vehiclesrss
ICS29.120.30 - Plugs, socket-outlets, couplers
Stability date  2025
File size1081 KB

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