Ex Enclosures - Aluminium Ex-i Enclosures

MULTI-BOX Aluminium-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 T4 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 external earthing and 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. By the exterior earthing, the enclosures are included in the potential compensation. 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: T4, T5, T6
  • Operating temperature max. (°C): 85
  • Operating temperature min. (°C): -55
  • External earthing point
  • RAL-code cover: 7001
  • RAL-code base: 7001
  • Material cover: Aluminium
  • Material base: Aluminium
  • Material sealing: Silicone
  • Material screws: Stainless Steel V2 A
  • Surface coating: Powder coating
  • Suitable for outdoor use
  • Suitable for indoor use
  • Protection class IP : 66
  • Earthing point available
  • Captive cover screws

ARTNR
Typ
Length (mm) Width (mm) Height (mm)  
3131100200
MBA-Ex i 606030
58 64 34
3131100400
MBA-Ex i 906030
98 64 35
3131100600
MBA-Ex i 156030
150 64 34
3131100900
MBA-Ex i 708055
75 80 57
3131101100
MBA-Ex i 128055
125 80 57
3131101300
MBA-Ex i 178055
175 80 57
3131101400
MBA-Ex i 258055
250 80 54
3131101600
MBA-Ex i 121265
122 120 65
3131101800
MBA-Ex i 121280
122 120 80
3131101900
MBA-Ex i 121290
122 120 90
3131102000
MBA-Ex i 221265
220 120 65
3131102200
MBA-Ex i 221280
220 120 80
3131102300
MBA-Ex i 221290
220 120 90
3131102400
MBA-Ex i 361280
360 122 80
3131102500
MBA-Ex i 161690
160 160 90
3131104000
MBA-Ex i 261665
260 160 65
3131102600
MBA-Ex i 261690
260 160 90
3131102800
MBA-Ex i 361690
360 160 90
3131029000
MBA-Ex i 561690
560 160 90
3131103000
MBA-Ex i 202311
200 230 110
3131103100
MBA-Ex i 282311
280 230 110
3131103202
MBA-Ex i 332311
330 230 110
3131103300
MBA-Ex i 332318
330 230 180
3131103400
MBA-Ex i 402311
400 230 110
3131103500
MBA-Ex i 403111
400 310 110
3131103600
MBA-Ex i 403118
400 310 180
3131103700
MBA-Ex i 602311
600 230 110
3131103800
MBA-Ex i 603111
600 310 110
3131103900
MBA-Ex i 603118
600 310 180
3131105500
MBA Ex-i 101080
100 100 80
3131104500
MBA Ex-i 141490
140 140 90
3131106500
MBA Ex-i 161080
160 100 80
3131106600
MBA Ex-i 201080
200 100 80
3131107500
MBA Ex-i 181490
180 140 90
3131108500
MBA Ex-i 201490
200 140 90

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