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This part of IEC 60309 applies to self-contained products that combine within a single enclosure, a socket-outlet or connector according to IEC 60309-1 or IEC 60309-2 and a switching device, with a rated operating voltage not exceeding 1 000 V d.c. or a.c. and 500 Hz, and a rated current not exceeding 800 A, primarily intended for industrial use, either indoors or outdoors. With respect to DIN EN 60309-4 (VDE 0623-3):2008-03, the voltage range has been expanded from 690 V to 1 000 V. The current range has been expanded from 250 A to 800 A and an interlock is required for accessories above 250 A. The responsible Committee is UK 542.4 "Industriesteckvorrichtungen" ("Industrial plugs and socket-outlets") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.
This document replaces DIN EN 60309-4:2008-03; VDE 0623-3:2008-03 .
This document has been replaced by: DIN EN IEC 60309-4:2023-03; VDE 0623-3:2023-03 .