MEDC SM87HXB | Hazardous Area Beacon | ATEX Beacons Zone 1 & Zone 2 5 Joule Xenon Ex d

ATEX Beacons Zone 1 Zone 2-5 Joule Xenon Ex d-Eaton MEDC SM87HXB Hazardous Area Beacon

MEDC SM87HXB Hazardous Area Beacons


Zone 1 & Zone 2 Hazardous Areas

MEDC SM87HXB are ATEX beacons that have been designed for use in potentially Explosive Atmospheres and harsh environmental conditions in ATEX & IECEx Zone 1 and Zone 2 Hazardous Areas.

The stainless steel or marine grade alloy enclosures of the Hazardous Area 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 ATEX beacons can be painted to customer specification and fitted with identification labels. An LED version is also available, see MEDC SM87LED, offering extended lifetimes: and a high temperature version of the hazardous area beacons are also available upon request.

Stainless steel, one of the most durable materials available on the market, is both hard wearing and corrosion resistant – increasing the life of products in harsh environments and therefore reducing maintenance costs.

Contact Thorne & Derrick for customer service, competitive quotations and availability from stock for the MEDC range of sounders, including MEDC SM87HXB, for safe use in hazardous areas with explosive atmospheres.

Ordering Details

MEDC SM87HXB | Ex d 5 joule xenon Beacon

The MEDC SM87HXB hazardous area beacon is available in a choice of variants such as LED and high temperature versions.

  • HXBAB (Ex d)
  • HXBSB (Ex d)


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.



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.
  • Explosion Protection | Exd IICT4/T5/T6.
  • ATEX approved Ex II 2GD.
  • BASEEFA Certified.
  • CSA Certified.
  • IECEx certified.
  • TR CU Certified*.
  • Chinese (CQST) Certified.
  • Brazilian (Inmetro) Certified.
  • IP66 & IP67 Ingress Protection
  • Certified temperature: –55°C to +70°C*.
  • High temperature version (up to 85°C) available.
  • Stainless steel or marine grade alloy.
  • Xenon or LED versions.
  • ATEX beacon with various lens colours.
  • Optional lens guard for hazardous area beacon
  • Telephone or relay initiated*.

*Depending on version.

MEDC SM87HXB - Dimensions

MEDC SM87HXB – 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 48 110 120 220 240 254
Tube energy (Joules) SM87HXB, SM87XBT 5 5 6 7 6 7 8
Current consumption SM87HXB 393 175 250 275 120 135 153
Current consumption SM87LED (mA) 165 85 N/A N/A N/A N/A N/A
Power consumption (Watts) 7.2 7.6 25 27 25 27 35
Effective intensity (Cd) 29 29 32 39 32 39 44
Peak intensity (Cd) 22213 22213 25061 30187 25061 30187 34174

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

MEDC SM87HXB 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 03ATEX0222
Certified to: EN60079-0, EN60079-1, EN60079-31
SM87HXB: Ex II 2GD, Ex d IIC T5/T6 Gb, Ex tb IIIC T65ºC/ T80ºC/ T95ºC Db
SM87LED: Ex II 2GD, Ex d IIC T6 Gb, Ex tb IIIC T55ºC/ T70ºC Db
SM87XBT: Ex II 2GD, Ex d IIC T4 Gb, Ex tb IIIC T110ºC Db
IECEx Ex d Cert. no. IECEx BAS 09.0059
Certified to: IEC60079-0, IEC60079-1, IEC60079-31
SM87HXB: Ex d IIC T5/T6 Gb, Ex tb IIIC T65ºC/ T80ºC/ T95ºC Db
SM87LED: Ex d IIC T6 Gb, Ex tb IIIC T55ºC/ T70ºC Db
SM87XBT: Ex d IIC T4 Gb, Ex tb IIIC T110ºC Db
UL Listing no. E187894
Class I, Div 1, Groups C & D
Class I, Zones 1. (SM87HXB & SM87XBT only)
CSA Cert no. 96406. (SM87HXB only)
Certified to: C22.2 Nos 0, 0.4, 0.5, 9, 30-M1986, 94-M91, 137-M1981
Class I, Div 1. Group D
TR CU Ex d SM87HXB: 1Ex d IIC T5/T6 Gb, Ex tb IIIC T65ºC/ T80ºC/ T95ºC Db
SM87LED: 1Ex d IIC T6 Gb, Ex tb IIIC T55ºC/ T70ºC Db
SM87XBT: 1Ex d IIC T4 Gb, Ex tb IIIC T110ºC Db
Russian Fire Alarm approved
INMETRO Ex d SM87HXB: Ex d IIC T5/T6 Gb, Ex tb IIIC T65ºC/ T80ºC/ T95ºC Db
SM87LED: Ex d IIC T6 Gb, Ex tb IIIC T55ºC/ T70ºC Db
SM87XBT: Ex d IIC T4 Gb, Ex tb IIIC T110ºC Db
SIL SIL2 certification to IEC61508. Cert. No. 20151119-4786827453
Material SM87HXBS, SM87XBTS and SM87LEDS: Grade 316 ANC4B stainless
SM87HXBA, SM87XBTA and SM87LEDA: LM25 TF marine grade alloy
Lens: glass
UL version available only in marine grade alloy
Finish Epoxy paint finish as standard
Certified temp ATEX/IECEx SM87HXB = -55ºC to +70ºC (T5)
-55ºC to +55ºC (T6)
SM87LED = -55ºC to +55ºC*(T6)
SM87XBT = -55ºC to +85ºC (T4)
CSA SM87HXB = -50ºC to +40ºC
UL SM87HXB = -55ºC to +70ºC
SM87XBT = -40ºC to +85ºC
TR CU SM87HXB = -55ºC to +55ºC
*Operating temp is -20ºC
Weight SM87HXBS & SM87LEDS: 3.8kg each (approx)
SM87HXBA & SM87LEDA: 2kg. each (approx)
Ingress protection IP66 & IP67
Entries Up to 4 x M20 / M25 ISO or 1/2” / 3/4” NPT
Terminals SM87HXB & SM87XBT: 6 off suitable for up to 1.5mm2
SM87LED: 6 off suitable for up to 1.5mm2
Relay initiate Initiation by telephone ringing tone or low voltage control signals
Labels Tag/duty optional

MEDC SM87HXB – Ordering Requirements

The following code is designed to help in selection of the correct Eaton 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.

MEDC SM87HXB - Ordering Requirements

MEDC SM87HXB – Ordering Requirements

ATEX IECEX Approvals

ATEX IECEX Approvals | International Hazardous Area Classifications & Approvals

Eaton MEDC

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 systems, electrical heating products, electrical 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