IEC 60309-4-2021 pdf free download – Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes – Part 4: Switched socket-outlets with or without interlock.
7.5Replacement:
The neutral terminal, if any, shall be marked N.
The earth terminal, if any,shall be marked (preferred) IEC 60417-5019 (2006-08) or +IEC60417-5017(2006-08).
The relationship between the terminals for the supply cable and load terminals / load contactsshall be made clear, if necessary, by means of a diagram or instruction.
Additional marking to indicate neutral terminal and/or earthing terminal may be used asfollows:
-letter W and/or white colour for neutral;- letter G and/or green colour for earthing.
No marking is required for terminals for pilot conductors. In the event that they are marked, itis recommended to use the marking Por’PILOT.
Compliance is checked by inspection.
7.6Replacement of the first sentence by the following text:
7.6Marking on the outside of the enclosure shall be indelible and easily legible.Additional subclauses:
7.401 The position (open or closed) of the switching device shall be unambiguous andclearly indicated.
The actuator of a mechanical switching device may be used to indicate the position of thecontacts.
For mechanical switching devices operated by means of two push-buttons,only the push-button designated for the opening operation shall be red or marked with the symbol “O”.
The colours of other push-buttons，illuminated push-buttons and indicator lights shall be inaccordance with lEC 60073.
7.402 The marking of the type of switching device shall be in a place which is visible afterinstallation of the products, on the outside of the enclosure or on the lid,if any, if the lattercannot be removed without the aid of a tool.
Dimensions
Clause 8 of lEC 60309-1:2021 applies for products incorporating socket-outlets according toIEC 60309-1.
Clause 8 of IEC 60309-2:2021 applies with the following addition for products incorporatingsocket-outlets according to lEc 6o3o9-2:
7.5Replacement:
The neutral terminal, if any, shall be marked N.
The earth terminal, if any,shall be marked (preferred) IEC 60417-5019 (2006-08) or +IEC60417-5017(2006-08).
The relationship between the terminals for the supply cable and load terminals / load contactsshall be made clear, if necessary, by means of a diagram or instruction.
Additional marking to indicate neutral terminal and/or earthing terminal may be used asfollows:
-letter W and/or white colour for neutral;- letter G and/or green colour for earthing.
No marking is required for terminals for pilot conductors. In the event that they are marked, itis recommended to use the marking Por’PILOT.
Compliance is checked by inspection.
7.6Replacement of the first sentence by the following text:
7.6Marking on the outside of the enclosure shall be indelible and easily legible.Additional subclauses:
7.401 The position (open or closed) of the switching device shall be unambiguous andclearly indicated.
The actuator of a mechanical switching device may be used to indicate the position of thecontacts.
For mechanical switching devices operated by means of two push-buttons,only the push-button designated for the opening operation shall be red or marked with the symbol “O”.
The colours of other push-buttons，illuminated push-buttons and indicator lights shall be inaccordance with lEC 60073.
7.402 The marking of the type of switching device shall be in a place which is visible afterinstallation of the products, on the outside of the enclosure or on the lid,if any, if the lattercannot be removed without the aid of a tool.
Dimensions
Clause 8 of lEC 60309-1:2021 applies for products incorporating socket-outlets according toIEC 60309-1.IEC 60309-4 pdf download.