Ex Enclosures - Polyester-Ex i Enclosures

MULTI-BOX MBP-Ex i junction boxes are conform to all installation field requirements where explosive concentrations of gases and dusts can appear. Zones 1 and 2 as well as 21 and 22 and with temperature classes T5 to T6.

The enclosure protection of the intrinsically safe enclosures «i» is based on the low voltage connections in the enclosure, e.g. data or telephone lines. Thanks to the very small amount of ignition energy and temperature rise, the Ex-i junction boxes can be assembled with the maximum amount of terminals, without any complications. The graphite additive in the polyester material prevents static charge of the housing surface by the low surface resistance = <10 (high -9) ohms. This completely avoids electrostatic charging and sparks resulting from it.

The enclosure should also be fitted with visually identifiable intrinsically safe blue cable glands and terminals in order to give notification to the installer that intrinsically safe power circuitry is fitted within.


  • Categorisation: i
  • Zone classification: 1, 2, 21, 22
  • Temperature classes: T5, T6
  • Operating temperature max. (°C): 85
  • Operating temperature min. (°C): -55
  • RAL-code cover: 9005
  • RAL-code base: 9005
  • Material cover: Polyester GRP
  • Material base: Polyester GRP
  • Material sealing: Silicone
  • Material screws: Stainless Steel V2 A
  • UV-resistant
  • Suitable for outdoor use
  • Suitable for indoor use
  • Protection class IP : 66
  • Flame retardancy : V0
  • Captive cover screws

ARTNR
Typ
Length (mm) Width (mm) Height (mm)  
3231111350
MBP-Ex i 221290
220 120 90
3231111250
MBP-Ex i 161690
160 160 90
3231101450
MBP-Ex i 261690
260 160 90
3231101550
MBP-Ex i 361690
360 160 90
3231101770
MBP-Ex i 402516
400 250 160
3231101660
MBP-Ex i 252512
255 250 120
3231101760
MBP-Ex i 402512
400 250 120
3231102050
MBP-Ex i 602512
600 250 120
3231101950
MBP-Ex i 561690
560 160 90
3231101850
MBP-Ex i 404012
400 405 120
3231101670
MBP-Ex i 252516
255 250 160
3231111150
MBP-Ex i 121290
122 120 90
3231101050
MBP-Ex i 237575
230 75 75
3231100950
MBP-Ex i 237550
230 75 50
3231100850
MBP-Ex i 197575
190 75 75
3231100750
MBP-Ex i 197555
190 75 55
3231100650
MBP-Ex i 167575
160 75 75
3231100550
MBP-Ex i 167555
160 75 55
3231100450
MBP-Ex i 117575
110 75 75
3231100370
MBP-Ex i 117555
110 75 55
3231100360
MBP-Ex i 117550
110 75 50
3231100250
MBP-Ex i 807575
80 75 75
3231100150
MBP-Ex i 807555
80 75 55

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