EJB 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 EJB A range of ex proof junction boxes 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.
The EJB 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 and earthing screws of stainless steel AISI 316;
- silicone gasket on cover;
- thermoresistant glass window sealed with auto-leveling silicone;
The EJB AS series, is a special execution with aluminium body and cover in stainless steel limited to sizes EJB 55 and EJB 7. The cover in stainless steel allows the installation of large window with max visible size of mm. 400 x 300.
|
product | overall dimension | internal dimensions | fixing dimensions | weight | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | a | b | c | d | e | screw | kg | ||
 |
EJB1A | 300 | 230 | 220 | 220 | 150 | 165 | 160 | 230 | M10 | 12 |
| EJB3A | 390 | 300 | 280 | 310 | 220 | 220 | 250 | 300 | M10 | 22 | |
| EJB4A | 460 | 340 | 300 | 380 | 260 | 235 | 320 | 340 | M10 | 30 | |
| EJB45A | 540 | 380 | 300 | 460 | 300 | 235 | 400 | 380 | M10 | 50 | |
| EJB5A | 640 | 460 | 360 | 560 | 380 | 290 | 500 | 460 | M10 | 62 | |
| EJB55A | 720 | 540 | 390 | 620 | 440 | 315 | 540 | 540 | M12 | 87 | |
| EJB7A | 1000 | 700 | 495 | 880 | 580 | 365 | 800 | 700 | M12 | 195 | |
The EJB 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 explosion proof junction boxes can also be fitted with other electrical and/or electronic equipment as per client specifications.
The materials used to manufacture the EJB A series have been studied to grant the maximum protection against the highly corrosive agents present in these industries:
- 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 and earthing screws of stainless steel AISI 316;
- gasket on cover of silicone;
- window of thermoresistant glass sealed with auto-leveling silicone;
The EJB AS series, is a special execution with aluminium body and cover in stainless steel limited to sizes EJB 55 and EJB 7. The cover in stinless steel allows the installation of large window with max visible size of mm. 400 x 300.
certificate number: IECEx IMQ 14.0010X IMQ 11 ATEX 031 X TC RU C-IT.AA87.B.00509
marking: 
II 2GD Ex db [ia Ga]/[ib Gb] IIB+H2 T4/T5/T6 Gb Ex tb IIIC T135/T100/T85°C Db
ambient 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)
