ATEX-Approved Products

Junction & Instrumentation Box Aluminium (Ex d) GUB

GUB A series Ex d enclosures are normally used in the chemical and petrochemical plants, offshore platforms, refineries and any other industry where hazardous atmospheres (gas and combustible dust) are potentially present.

The GUB A range of explosion proof enclosures has been designed to meet the main requirements of power distribution, monitoring and signaling, and other electrical functions inside the hazardous area of the plant.

Unit Price:

Customers can still purchase even if there is no stocks available

Unit Of Measurement (UOM):

Supermec always pays special attention to on-site installation issues. GUB A series explosion proof enclosures are provided with internal and external anti-rotation washer to facilitate the earth connection without using special eye-bolt lugs, making the job easier for maintenance staff.


overall dimensioninternal dimensionsfixing dimensionsweight
GUB1A 129 165 125 103 103 53 147 105 M6 2.4
GUB2A 180 229 128 155 155 68 204 152 M8 4.2
GUB3A 200 247 148 175 175 88 223 172 M8 5.3
GUB4A 250 308 174 222 222 96 279 220 M10 8.4
GUB5A 320 382 206 290 290 130 351 286 M10 14.4

The GUB A series can be used for the following main applications:

  • control station and instrument housing;
  • motor starter unit; lighting control panel;
  • electronic grounding system;
  • terminal and bus-bars box;

The GUB A series explosion proof enclosures can also be fitted with other electrical and/or electronic equipment as per client specifications.

The GUB A series Ex d enclosures are manufactured with:

  • body and cover casted of copper-free (lower 0.1%) aluminium alloy;
  • external epoxy powder coating RAL 7001;
  • internal anti-condensation coating (upon request);
  • anti-loosening bolts (size 1) and earthing screws of stainless steel AISI 316;
  • gasket on cover of silicone;
  • window of thermoresistant glass sealed with auto-leveling silicone;

certificate number: IECEX IMQ 16.0018X IMQ 11 ATEX 030 X TC RU C-IT.AA87.B.00509
marking: Ex-proof Logo II 2GD Ex db [ia Ga]/[ib Gb] IIC T4/T5/T6 Gb Ex tb IIIC T135/T100/T85°C Db
temperature: –60°C +60°C
degree of protection: IP66
conformity: Directive ATEX 2014/34/EU TP TC 012/2011
standards: IEC-EN60079-0 IEC-EN60079-1 IEC-EN60079-11 IEC-EN60079-31
ГОСТ 31610.0 ГОСТ IEC 60079-1 ГОСТ 31610.11 ГОСТ Р МЭК 60079-31
category: suitable for Zone 1 - 21 (gas) and Zone 2 - 22 (dust)