Sorry, you need to enable JavaScript to visit this website.



This range of loudspeakers, intended for use in potentially explosive atmospheres, has a power rating of up to 8 Watts and is suitable for use in the harsh environmental conditions found offshore and onshore in the oil, gas and petrochemical industries.

The body and cover are manufactured from a UV stable glass reinforced polyester. The flare is manufactured from UV stable ABS.

Stainless steel screws and mounting stirrup are incorporated to ensure a corrosion-free product.

Data Sheets
DB20 (579 KB) (PDF)
Product Certificates
CUTR (1013 KB) (PDF)
CCOE (555 KB) (PDF)
TR EAEU 037 (388 KB) (PDF)
Product Certificates – External Link
Schematics / Wiring
GA (DB20 309-126) (58 KB) (PDF)
DB20 (TM208 ATEX) (2 MB) (PDF)
Technical Manuals
DB20 (TM208 ATEX) (101 KB) (PDF)
Certification ATEX, IECEx, CUTR, Inmetro, Russian Fire Approval
Flameproof & Increased Safety ATEX Ex II 2 G, Exde IIB T3/T4
          Ex II 2 GD Exde IIC T4/T5
Area Classification Zone 1, Zone 2 & non Ex-use
Certified Ambient Temperature –50°C to +70°C*
Ingress Protection IP66
Material Body and Cover:Corrosion-free GRP
Outer Flare: UV stable ABS
Mounting and Fixtures: Stainless Steel
Output IIB Version: 103 dBA at 1W at 1 metre
IIB Version: 109dBA at 4W at 1 metre
IIB Version: 112 dBA at 8W at 1 metre
IIC Version: 100 dBA at 1W at 1 metre
IIC Version: 106 dBA at 4W at 1 metre
IIC Version: 109 dBA at 8W at 1 metre
Entries 2 x M2O ISO + 1 x certified plug
Weight 1.5kg (approx)

4 x 4.0mm2 as standard.

8 x 2.5mm2 optional ATEX and IECEx only


Transformer Tappings @ 4W 4, 2, 1, 0.75, 0.38, 0.2
Transformer Tappings @ 8W 8, 4, 2, 1, 1.5, 0.75, 0.4
Options Body colour, tag & duty labels,
Transformer voltage

 *Model Dependent


  • Zone 1& 2 (and Zone 21 & 22 : IIC version) plus non-Ex use
  • ATEX Approved II 2G Ex de IIB T3/T4*
  • IIC Gas Group and Dust approved version available.
  • BASEEFA certified.
  • Brazilian (Inmetro) certified.
  • CUTR certified.
  • IECEx Approved.
  • IP66.
  • Certified temperature: –50°C to +70°C*.
  • GRP corrosion-free flamepath.
  • 112dB(A) at 8 watts at 1 metre (IIB Version)
  • Power tappings via integral transformer.
  • Ratcheted swivel mounting stirrup
  • Stainless steel fixtures.
  • 100V or 70V line and 8Ω versions available.
  • Earth continuity available.
  • Option for 8 terminals to allow loop-in loop-out wiring configuration.
  • Optional metal ceiling mount in accordance with SOLAS B15 requirement.

*Temperature class relates to ambient temperature (see datasheet)