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GUB series junction boxes are suitable for installation in any areas of a plant where there is a risk of explosion and/or fire, or areas where combustible dust is present, classified as Zone 1, 2, 21, 22. The quality of this product is recognized and valued the world over for its specific aluminium alloy and the mechanical properties of its finishes. The GUB series is employed where group IIC gases are present and is mostly used as a box to carry terminals, fuse carriers, transformers, reactors and barriers, though it is also used to produce control and signalling boards, light and power boards and surge arresters, and motor starter boxes with various configurations, which are specially custom made to the requirements of our customers worldwide. GUB series junction boxes have a screw cover and GUB-V enclosure series features a lid with a tempered glass viewing window.

  • Group IIC.
  • Choice of 8 sizes.
  • Screw-on lid with safety fastening grub screw.
  • IP66.


Body and cover in low copper content aluminium alloy. Internal/external stainless steel earth screws. Fixing lugs. Polyester coating. Neoprene gasket.

Also available in Spanish
Also available in Spanish

Type Description Marking Company Certificate
Atex Component
  • I M2 Ex db I Mb
  • II2GD Ex db IIC Gb
  • Ex tb IIIC Db
Atex With terminals
  • I M2 Ex d I Mb
  • II2GD Ex d IIC T… Gb
  • Ex tb IIIC T... Db
CESI 01 ATEX 035
Atex Interface units
  • I M2 Ex d [ia Ma] I Mb
  • II2(1)GD Ex d [ia Ga] IIC T… Gb
  • Ex tb [ia Da] IIIC T…°C Db
Atex Conformity
  • I M2 Ex db I Mb
  • II 2GD Ex db IIC T... Gb
  • Ex tb IIIC T...°C Db
IEC Ex Command, control and signalling enclosures
  • Ex db [ia Ma] I Mb (CCAI only)
  • II 2GD Ex db [ia Ga] IIC Gb
  • Ex tb [ia Da] IIIC T85°C Db
IECEx CES 16.0013X
IEC Ex Component
  • Ex db I Mb
  • Ex db IIC Gb
  • Ex tb IIIC Db
IECEx CES 14.0012U
IEC Ex Interface units
  • Ex db [ia Ma] I Mb
  • Ex db [ia Ga] IIC T.. Gb
  • Ex tb [ia Da] IIIC T…°C Db
IECEx CES 16.0015X
INMETRO Junction box
  • II 2 GD Ex d IIC Gb Ex tb IIIC Db IP66
  • II 2 GD Ex d IIC T6, T5 Gb Ex tb IIIC T85°C, T100°C Db IP66
  • II 2(1) GD Ex d [ia Ga] IIC T6, T5 Gb Ex tb [ia Da] IIIC T85°C, T100°C Db IP66
DNV 14.0152
TR CU Junction box
  • 1Ex d IIC T…Gb
  • Ex tb IIIC T…°C Db
  • 1Ex d [ia Ga] IIC T…Gb
  • Ex tb [ia Da] IIIC T…°C Db
  • PB Ex d I Mb
  • Ex d IIC Gb U
CCoE Junction box
  • Ex d IIC T6, T5 Gb