MEDC DB5 | Hazardous Area Sounder | ATEX Sounders Zone 1 & Zone 2 Weatherproof Ex ia

MEDC DB5 Hazardous Area Sounders

MEDC DB5 Hazardous Area Sounders



MEDC DB5 are a part of the range of light weight, intrinsically safe ATEX sounders that have been designed with a high weatherproof rating to cope with the harsh environmental conditions found offshore and onshore in the oil, gas and petrochemical industries – in ATEX & IECEx Zone 1 and Zone 2 hazardous areas. A wide range of hazardous area sounders are available to order from Thorne & Derrick, to suit individual requirements and applications.

The hazardous area speaker can also be used in the mining industry, available in 2 models: 12V and 24V, and can be ordered from Thorne & Derrick with MEDC call points for integration into fire detection systems in the explosive atmosphere industries.

A variety of sounder tones are available for MEDC sounders, with 26 different sound outputs available for the MEDC DB5 – user selectable by internal switches.

The DB5 is constructed from corrosion free ABS which has high tensile strength and is very resistant to physical impacts and chemical corrosion. The Sounder can therefore withstand heavy use and adverse environmental conditions.

Contact Thorne & Derrick for great customer service, competitive quotations and availability from stock for the MEDC range of sounders, including MEDC DB5, for safe use in hazardous areas with Explosive Atmospheres.



The MEDC DB5 hazardous area sounder features up to 103 dB(A)

  • DB5 (Ex ia)


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 DB5

Eaton MEDC DB5

ATEX Sounders Zone 1 & Zone 2


ATEX Certified & Approved


  • Zone 0, Zone 1 and Zone 2 Hazardous Areas
  • Ex ia IIC T4.
  • ATEX/IECEx certified (Group II Surface).
  • ATEX/IECEx certified (Group I Mining).
  • IECEx certified, Ga.
  • FM Approved – Class I, Div. 1, Groups A-D.
  • Brazilian (Inmetro) certified.
  • IP65 Ingress Protection
  • Certified temperature: –20ºC to +55ºC.
  • Volume control as standard.
  • Up to 103 dB(A).
  • 26 different sound outputs, user selectable by internal switches.
  • Encapsulated electronics.
  • Second tone selectable using third wire
Eaton MEDC DB5 - Dimensions

Eaton MEDC DB5 – Dimensions

MEDC DB5 Hazardous Area sounders

Technical Specification

Should you require any further information to enable the selection or specification of explosion proof status lights, for use in potentially explosive atmospheres, please contact us.

Hazardous Area Certification
ATEX Ex ia (surface) Cert. no. BAS00ATEX1259X
Certified to: EN60079-0, EN60079-11, EN60079-26
Ex ia IIC T4 Ga
ATEX Ex ia (surface sys) Cert. no. Baseefa10Y0054
Certified to: EN60079-25
Ex ia IIC T4 Ga
ATEX Ex ia (mining Cert. no. MECS01ATEX4260
Certified to: EN50014, EN50020, EN50303
I M 1, EEx ia I
ATEX Ex ia (mining sys) Cert. no. 94Y7095
Certified to: EN50039
Ex ia I
IECEx Ex ia (surface) Cert. no. IECEx BAS 08.0043x
Certified to: IEC60079-0, IEC60079-11, IEC60079-26
Ex ia IIC T4 Ga
IECEx Ex ia (mining) Cert. no. IECEx ITA 15.0010X
Certified to: IEC60079-0, IEC60079-11
Ex ia I Ma
FM Job indentification. 3008604
Intrinsically safe for: Class I division 1 groups A, B, C & D
Ex ia I Ma
ABS American Bureau of Shipping type approva
Material A.B.S. (Acrylonitrile Butadiene Styrene)
Finish Available in red as standard
Sound output 100± 3dB(A) for 12V and 24V versions
Typical max value only – variable with tone
Tones comply with BS 5839 Part 1
Current consumption 24Vdc model – 14 mA max. nominal
12Vdc model – 12 mA max. nominal
Certified temp –20ºC to +55ºC
Weight 0.3 Kg
Entries 2 x M20 side entries
Terminals 6 off suitable to accept up to 2.5sqmm cable, for looping


The following code is designed to help in selection of the correct Eaton hazardous area sounders with ATEX approval and certification. Build up the part number by inserting the code for each component into the appropriate box.

Eaton MEDC DB5 - Ordering Requirements

Eaton MEDC DB5 – Ordering Requirements


ATEX Sounders

ATEX Sounders

Eaton MEDC

Eaton MEDC have developed ATEX products designed for harsh and hazardous area conditions and where there is a risk of explosion due to the presence of flammable 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 ATEX Certified manual call points, visual, audible alarms, loudspeakers and telephones for hazardous area workplaces, including Zone 1 & Zone 2 explosive atmospheres.

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