MEDC XB4 | ATEX Beacon | Hazardous Area Beacons Zone 1 & Zone 2 21 Joule Xenon Ex d

Eaton MEDC XB4 Hazardous Area Beacons

MEDC XB4 Hazardous Area Beacons



MEDC XB4 are ATEX beacons that have a high output of 21 Joule, specifically designed for use in potentially explosive atmospheres and harsh environmental conditions in ATEX & IECEx Zone 1 and Zone 2 hazardous areas.

The marine grade alloy or stainless steel enclosures of the ATEX beacons are suitable for use offshore or onshore, where lightweight combined with corrosion resistance and strength is required, and can be ordered from Thorne & Derrick with MEDC call points for integration into fire detection systems in the explosive atmosphere industries.

The high output hazardous area Xenon beacon, with explosion protection concept Ex d, can be painted to customers specification and supplied with identification labels.

The MEDC XB4 is available with optional Exe terminal chamber.

Contact Thorne & Derrick for customer service, competitive quotations and availability from stock for the MEDC range of sounders, including MEDC XB4, for safe use in hazardous areas with explosive atmospheres.



The MEDC XB4 hazardous area beacon is available in a choice of variants such as stainless steel and alloy options for ordinary locations.

  • XB4 (alloy) (Ex d)
  • XB4 (stainless) (Ex d)
  • XB4UL (alloy) (UL)
  • XB4UL (stainless steel) (UL)
  • XB4UL (alloy) (ordinary locations)
  • XB4UL (stainless steel) (ordinary locations)


The MEDC range of sounders and beacons from the Crouse Hinds series of Signalling & Alarms – a comprehensive range of Explosion Proof call points are also available with ATEX & IECEx certification and explosion protection to both Ex d (flameproof) and Ex ia (Intrinsically Safe) applications.




Eaton MEDC XB4

Eaton MEDC XB4

ATEX Beacons Zone 1 & Zone 2


ATEX Certified & Approved


  • Zone 1 & 2 (Gas) and Zone 21 & 22 (Dust) Hazardous Areas
  • UL Listed for USA and Canada
    • – Hazardous Locations with Explosive Atmospheres:
    • Class I, Div 1, Groups C & D.
    • Class I, Zone 1, AExd IIB T4.
    • Ordinary locations: Visual-Signal Device.
  • Exde IICT5.
  • ATEX approved Ex II 2GD.
  • BASEEFA certified.
  • TR CU certified.
  • Certified temperature: –55°C to +70°C*.
  • IP66 & IP67 Ingress Protection
  • Stainless steel or marine grade alloy.
  • Various lens colours for hazardous are beacon.
  • Twin replaceable tubes.
  • Exde version has gland earth continuity in the
  • GRP terminal chamber.
  • Tapered spigot flamepath.
  • Telephone or relay initiated option for ATEX beacon.
  • Optional lens guard.

*Depending on version.

Eaton MEDC XB4 - Dimensions

Eaton MEDC XB4 – Dimensions

ATEX Beacons Zone 1 & Zone 2

Nominal Voltage

Thorne & Derrick distribute intrinsically safe, flameproof and explosion proof loudspeakers, beacons and strobes, status lights and call points for warning signal systems in the hazardous area industries to suit all voltage requirements.

Nominal voltage d.c a.c. 50/60Hz
24 110 240
XB4 tube energy (Joules) 21 21 21
Peak Current Consumption (mA) 1400 350 185
Effective intensity (Cd) 355 355 355
Peak intensity (Cd) 123691 123691 123691

NOTE: The above figures (Cd) are for a clear lens @ 1Hz flash rate.

MEDC XB4 Hazardous Area Beacon

Technical Specification

Should you require any further information to enable the selection or specification of explosion proof beacons and sounders with LED light source for use in potentially explosive atmospheres please contact us.

Hazardous Area Certifications
ATEX Ex d Cert. no. Baseefa 04ATEX0224X.
Certified to: EN60079-0, EN60079-1, EN60079-31.
Ex II 2GD, Ex d IIC T4/T5/T6 Gb. Ex tb IIIC T85ºC/T100ºC/T135ºC Db.
ATEX Ex de Ex II 2GD, EEx de IIC
IECEx Ex d Cert. no. IECEx BAS 10.0078X.
Certified to: IEC60079-0, IEC60079-1, IEC60079-31.
Ex II 2GD, Ex d IIC T4/T5/T6 Gb. Ex tb IIIC T85ºC/T100ºC/T135ºC Db.
UL Haz Locs Listing no. E187894.
Class I, Div 1, Groups C & D.
Class I, Zones 1
UL Ord Locs Listing no. S8128. Visual Signal Device
CUTR Ex d 1Ex II 2GD, Ex d IIC T4/T5/T6 Gb. Ex tb IIIC T85ºC/T100ºC/T135ºC Db.
INMETRO Ex d Ex d IIC T4/T5/T6 Gb
INMETRO Ex de Ex de IIC T4/T5/T6 Gb
Material LM25TF Marine Grade Alloy body.
Grade 316 ANC4B Stainless Steel body.
Glass reinforced polyester (GRP) terminal chamber.
Toughened Wellglass
Finish Red epoxy paint finish as standard or to customer specification
Certified temp : UL -25ºC to + 70ºC.
ATEX -50ºC to +55ºC (Ex de).
ATEX, IECEx, CUTR & Inmetro.
-55ºC to +70ºC (Ex d).
Weight Exd: 6.6kg. Exde: 7.6kg. Add 8.4kg for stainless steel version
Entries Up to 3 x M20 or 2 x M25 ISO in Exd unit.
Up to 4 x M20 or 4 x M25 ISO in Exe unit.
Telephone initiation or relay interface Initiation by telephone ringing tone or low voltage control signals, plus initiation of a second beacon or sounder.
Terminals Exe: 6 off suitable for up to 6sqmm cable.
Exd: 8 off suitable for up to 6sqmm cable
Tube life >1×106 flashes

Eaton MEDC XB4 – Ordering Requirements

The following code is designed to help in selection of the correct MEDC hazardous area beacon with ATEX approval and certification. Build up the part number by inserting the code for each component into the appropriate box  – contact our sales team for support and advice covering an extensive range of standard and innovative ATEX & IECEx equipment for use in explosive atmospheres.

Eaton MEDC XB4 - Ordering Requirements

Eaton MEDC XB4 – Ordering Requirements

ATEX Beacons

ATEX IECEX Approvals | International Hazardous Area Classifications & Approvals


Eaton MEDC have developed ATEX products, including ATEX Beacons, designed for harsh and hazardous area conditions and where there is a risk of explosion due to the presence of flammable gas and dust atmospheres both onshore and offshore – since 1975 MEDC have been designers and manufacturers of alarm, signal, control and communications equipment. T&D distribute the extensive range of Eaton MEDC products – this includes ATEX Certified manual call points, visual, audible alarms, loudspeakers and telephones for hazardous area workplaces, including Zone 1 & Zone 2 explosive atmospheres.

Eaton MEDC Beacons & Sounders

Thorne & Derrick, are the Explosive Atmosphere Experts, distributing an extensive range of ATEX Certified Equipment including heat tracing cables and systemselectrical heating productselectrical enclosures and plug/sockets outlets.

Complete range of LV-HV Cable Joints, Terminations, Cleats & Glands are available to support installation of power, control and instrumentation cables up to 33kV – includes Cold Shrink for use in hazardous areas to provide electrical insulation and cable protection.

➡ Cable Cleats | Cable Lugs | Cable Transits | Cable Joints

Data Sheets