ACEX datasheet Sira 08ATEX3212 CERTIFICATE Back

ACEX Ex e, Ex ia certified Junction Boxes and Enclosures

acex group


  • 316L stainless steel with various finishes including orbital (standard), bead-blast, painted and electro-polished

  • 1.5 mm or 2.0 mm wall thickness as standard

  • Available with plain sides and up to 4 gland plates. Gland plate thickness options 2.0 mm to 6.0 mm.

  • Available as empty enclosures with ATEX component approval or fitted with a wide range of terminals and ATEX apparatus approval.

  • Fitted with internal/external earth stud.

  • 3 mm thick external wall mounting brackets. The top brackets are slotted for ease of mounting.

  • Hank bushes fitted as standard

  • Detachable hinged lid on ACEX231513 and above.

  • Padlock hasp door locking facility on ACEX231513 and above


Certificate No’s:

SIRA 08 ATEX 3212

IECEx SIR 13.0038X

Ex protection type

Ex II 1 GD

Ex ia IIC T5 and T6

Ex ta IIIC T85°C and T100°C

Ex II 1 2 GD

Ex e IIC T5 and T6

Ex tb IIIC T85°C and T100°C

Ingress protection levels

IP66, 67 and 68 (EN 60529/IEC 60529)

Ambient temperature

-55 to +65ºC with appropriate gasket


ACEX enclosures are manufactured from 316L stainless steel and available in 27 popular sizes ranging from 110x110x65mm to 1177x777x300mm with an orbital finish as standard or bead-blast or electro-polished finishes as options. ACEX are manufactured to the CEX specification technically but are equipped with standard hinges, hank bushes and a return flange, which allows water to drain away and provide a knife edge high grade seal. Gland plates, from 3mm to 6mm gauges, are available as an option on all sides. ACEX enclosures can be supplied with component approval, as empty enclosures, or apparatus approval as junction boxes fitted with a wide range of terminals. Available with ATEX 2014/34/EU Directive Ex e, Ex ia and Ex ib certification and a temperature classification of T5 or T6.

ACEX are also available in fire-rated versions up to 970°C for 2 hours (to BS5839-1: 2013, Sec 26.2e) or 950°C for 3 hours to meet BS 6387 CWZ standards.

Product Code Height mm Width mm Depth mm
ACEX111165 110 110 65**
ACEX121280 120 120  80**
ACEX151290 150 120  80**
ACEX151590 150 150  90**
ACEX191590 190 150  90**
ACEX191910 190 190 100**
ACEX231513 229 152 130
ACEX262615 260 260 150
ACEX262620 260 260 200
ACEX303015 306 306 150
ACEX303020 306 306 200
ACEX382615 380 260 150
ACEX382620 380 260 200
ACEX463815 458 382 150
ACEX463820 458 382 200
ACEX484815 480 480 150
ACEX484820 480 480 200
ACEX503515 500 350 150
ACEX503520 500 350 200
ACEX624515 620 450 150
ACEX624520 620 450 200
ACEX765115 762 508 150
ACEX765120 762 508 200
ACEX916120 914 610 200
ACEX916130 914 610 300
ACEX1207821 1177 777 210
ACEX1207830 1177 777 300
Technical data (Extract) (For detailed information please click here)

Protection class

IP 66 and 67 (EN 60529/IEC 60529)


see data sheet


316L stainless steel


see data sheet


see data sheet


ACEX datasheet 

IECEx SIR 13.0038X

Declaration of Conformity

Customer requirements – Terminal Boxes

Operating Instructions – empty enclosure 

Operating Instructions – enclosure with terminals

Keeping ahead of COVID-19

The health and safety of our staff, customers and the wider community remains our priority. However, just a word to say Ce-Tek are still shipping all web orders placed before 2pm on a next day delivery service. In the unlikely event we are unable to ship from stock that day, we will contact you with the delivery date #staysafe