Brand: Cortem

Cortem EJBE-EJBXE Ex de Control and Distribution Boards

Name: Cortem EJBE-EJBXE Ex de Control Boards – Datasheet & Quote
Brand: Cortem
SKU: EJBE-EJBXE

Description

Ex de control and distribution boards combining flameproof and increased-safety enclosures

The Cortem EJBE and EJBXE series are control, monitoring and distribution boards in Ex de execution. Switches, inverters, fuses, relays and similar components sit in an Ex d flameproof enclosure, while the auxiliary terminal block is housed in an Ex e increased-safety enclosure. EJBE boards pair an aluminium EJB enclosure with a stainless steel CTB terminal enclosure; EJBXE boards use the stainless steel EJBX enclosure, giving an all-stainless structure for marine and other highly corrosive sites.

The two enclosures are linked mechanically by a flange and electrically by Cortem TP sealed bushings in nickel-plated brass or stainless steel, with a flat silicone gasket keeping IP66 between them. Lids of the Ex d enclosure can carry a tempered glass window to read instruments. A factory-sealed version is available on request, so cable entries are already protected against gas and flame propagation and no external sealing fitting is needed near the equipment.

Technical specifications of the EJBE and EJBXE series

Parameter	Specification
Manufacturer	Cortem S.p.A., Italy
Classification	Group II, category 2GD; Zones 1, 2, 21, 22
Marking, empty enclosures	II 2 GD Ex de IIB+H2 Gb, Ex tb IIIC Db, IP66
Marking, control units	II 2 GD Ex de IIB+H2 T6, T5 Gb; Ex tb IIIC T85 °C, T100 °C Db; IP66
Marking, interface units (-…I)	II 2(1) GD Ex de [ia Ga] IIB+H2 T… Gb; Ex tb [ia Da] IIIC T…°C Db
Certificates	Empty: ATEX CESI 15 ATEX 066U, IECEx CES 15.0018U. Units: ATEX CESI 12 ATEX 026, IECEx CES 12.0019
Ambient temperature	Empty: -40 to +80 °C with polycarbonate indicators on the lid, -50 to +80 °C without. Units: -40 or -50 to +55 °C (T5, +40 °C for T6)
Rated voltage / current	Max. 690 Vac, 50 A, 50-60 Hz; lamps max. 5 W at +40 °C or 3 W at +55 °C
Ex d enclosure	EJBE: low-copper aluminium alloy, polyester RAL 7035; EJBXE: AISI 316L, quartz sand blasted
Ex e enclosure	AISI 316L stainless steel, IK10, silicone gasket, removable gland plates 3 mm
Standards	EN 60079-0, -1, -7, -11, -31 and Directive 2014/34/EU

Sizes, weights and power dissipation

Each series has eight sizes. Dimensions A x B x C are the outside size in millimetres including the Ex e enclosure; the power values are the maximum dissipation allowed at +40 °C for T6 and T5 respectively without indicator lights.

Code	Outside A x B x C (mm)	Weight (kg)	Dissipation T6 / T5 (W)
EJBE-3	661 x 284 x 273	25	75 / 110
EJBE-3B	661 x 284 x 213	23	55 / 80
EJBE-4	771 x 332 x 293	55	100 / 175
EJBE-4B	771 x 332 x 223	34	75 / 130
EJBE-5	1115 x 432 x 335	73	210 / 315
EJBE-5B	1115 x 432 x 265	65	170 / 250
EJBE-6	1537 x 650 x 470	182	600 / 910
EJBE-6B	1537 x 650 x 370	169	490 / 720
EJBXE-3	665 x 284 x 267	63	75 / 110
EJBXE-3B	665 x 284 x 207	57	55 / 80
EJBXE-4	771 x 332 x 287	81	100 / 175
EJBXE-4B	771 x 332 x 217	73	75 / 130
EJBXE-5	1115 x 432 x 327	147	210 / 315
EJBXE-5B	1115 x 432 x 257	134	170 / 250
EJBXE-6	1508 x 640 x 409	297	600 / 910
EJBXE-6B	1508 x 640 x 309	271	490 / 720

Options and what to confirm before ordering

Cortem lists a RAL 2004 anti-condensation interior coating, external colours, rectangular lid windows, internal mounting plates (aluminium, galvanised steel or stainless steel), terminal rails, removable gland plates, a padlocking system and different certified sealed bushings. Terminals must come from the approved list of Cabur, Phoenix, ABB Entrelec, Wago or Weidmuller, and Ex i versions carry blue terminals. The Ex d lid drilling limits depend on the size (for example 8 to 12 holes for EJBE-3 and 60 for EJBE-6 solid lid), and holes must be made by Cortem or an ATEX-notified partner.

Provide the component list, total dissipated power and ambient temperature so the right size and temperature class can be confirmed, together with the number and size of cable entries and whether a factory-sealed version is wanted.

Documents and quotation

The attached document is the Cortem EJBE-EJBXE control boards datasheet (catalogue pages C.1-C.16, edition 2026).

For a quotation, send the model code, voltage, zone and gas or dust group, cable entry details and quantity. See Automation Accessories for related hazardous-area equipment. Related hazardous-area equipment: Cortem EJBX stainless steel junction boxes.

Datasheets & Documents

Datasheet Cortem EJBE and EJBXE control boards datasheet (ED.2026) Download

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About brand

Cortem is an Italian manufacturer of electrical equipment for environments with a risk of explosion and fire. Cortem S.p.A., the main company of Cortem Group, was founded in 1968 in Villesse, Italy, and the group today supplies industrial plants, offshore platforms, refineries and shipyards with certified products for hazardous areas.

Explosion-protected product range

The catalogue covers junction boxes in aluminium, stainless steel and GRP, control and command stations, metal cable glands and connectors, plugs and sockets, LED floodlights, linear and high-bay luminaires, hand lamps, signalling and obstruction lights, and weatherproof series equipment. Products are certified to ATEX and IECEx, with UKEX and other schemes available according to the model.

Applications and documentation

Typical sectors named by the company include oil and gas, chemical and pharmaceutical plants, mining, shipbuilding and traditional and green energy. Each product family has a datasheet with the marking, zones, temperature classes and certificate numbers, so the equipment can be matched to a hazardous area classification before ordering.