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EJB series junction boxes are suitable for installation in any areas of a plant where there is a risk of explosion and/or classified as Zone 1, 2, 21, 22. The quality of this product is recognized and valued the world over for its aluminium alloy and the mechanical property of its finishes. The EJB series is mostly used as a box to carry terminals and busbars, 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 custom made to the requirements of our customers worldwide.

  • Group IIB+H2.
  • IP 66/67.
  • Cast hinges (except for EJB-01).
  • Available with round or square window for viewing analog or digital instruments.


Body and lid in low copper content aluminium alloy. Stainless steel cover bolts. Internal/external earth screws. RAL 7035 polyester coating. Galvanized steel mounting brackets. Silicon gasket.

Also available in Spanish
Also available in Spanish

Type Description Marking Company Certificate
Atex Surge arresters
  • II 2GD Ex d IIB+H2 T5/T6
  • Ex tD A21 T85°C,T100°C
CESI 03 ATEX 015
Atex Component
  • II 2GD Ex db IIB+H2 Gb
  • I M2 Ex db I Mb (EJBX)
  • Ex tb IIIC Db
Atex With terminals
  • II 2GD Ex d IIB+H2 T5/T6 Gb
  • Ex tb IIIC T85°C, T100°C Db
  • IM2 Ex d I Mb (EJBX)
CESI 01 ATEX 026
Atex Conformity
  • II 2GD Ex db IIB+H2 T.. Gb
  • Ex tb IIIC T..°C Db
CESI 01 ATEX 027x
Atex Conformity and interface units
  • Ex d [ia Ga] IIB+H2 T5/T6 Gb
  • Ex d [ia Ga] IIB+H2 T5/T6 Gb
  • Ex tb [ia Da] IIIC T85°C, T100°C Db
CESI 02 ATEX 073x
IEC Ex Command, control and signalling enclosures
  • Ex db I Mb (only EJBX)
  • Ex db IIB+H2 T… Gb
  • Ex tb IIIC T… Db
IECEx CES 16.0012X
IEC Ex Component
  • Ex db I Mb
  • Ex db IIB+H2 Gb
  • Ex tb IIIC Db
IECEx CES 14.0017U
IEC Ex Interface units
  • II2(1)GD
  • Ex db [ia Ga] IIB+H2 T…Gb
  • Ex tb IIIC T…°C Db - IP66/67
IECEx CES 16.0014X
INMETRO Junction box
  • II 2(1) GD Ex d [ia] IIB Ex tD A21 T5/T6 IP65/66/67
  • II 2GD Ex d IIB+H2 T6,T5, T4 Gb Ex tb IIIC T85°C, T100°C, T135°C Db IP66/67
  • II 2(1)GD Ex d [ia Ga] IIB+H2 T6, T5 Gb Ex tb [ia Da] IIIC T85°C, T100°C Db IP66/67
DNV 14.0140
INMETRO Junction box
DNV 16.0099U
TR CU Junction box
  • 1Ex d IIB+H2 T…
  • Ex tb IIIC T…°C Db
  • PB Ex d I Mb
  • 1Ex d ia Ga IIB+H2 T…Gb
  • Ex tb ia Da IIIC T…°C
  • Ex d IIB+H2 Gb U