Hazardous Area Electrical Equipment

Hazardous Area Electrical Products & Equipment
Thorne and Derrick Hazardous Area Manufacturers

Hazardous Area & Explosion Proof Electrical Equipment

Thorne & Derrick UK are specialist Hazardous Area Electrical Equipment Distributors.

Hazardous Area Manufacturers 

We distribute Flameproof, Explosion Proof and Intrinsically Safe electrical equipment for Zone 1, 2, 21 and 22 hazardous areas.

T&D service the global oil, gas and petrochemical industries with LV-HV hazardous area electrical equipment.

Hazardous Area Electrical

T&D Hazardous Area Product Overview


ATEX and IECEx certified hazardous area lighting for safe use in potentially explosive atmospheres, including Zones 1 /2 (gases) and Zones 21 / 22 (dusts). Key suppliers : Hadar, FEAM, Stahl, Petrel and Wolf Safety.  

  • Fluorescent, Emergency, Bulkhead & Floodlights 
  • Portable Handlamps, Torches, Headtorches & Floodlights 
  • Temporary Floodlights, Tanklights, Airlamps & Mobile Lighting

Hazardous Area Lighting - Hadar, FEAM, Stahl & Wolf Safety


Cable Accessories

ATEX and IECEx certified hazardous area cable joints, terminations, cleats and glands for installing power, control and instrument cables in Zone 1 and Zone 2. Key suppliers : 3M, CSD, Prysmian, Ellis Patents, Thomas & Betts, Hawke, Panduit and Flexicon.   

  • Cable Joints - Heat Shrink, Cold Shrink & Resin Cable Joints
  • Cable Glands - Ex d & Ex e Flameproof, Deluge & Barrier Cable Glands
  • Cable Cleats - Single, Trefoil & Bundled Cable Cleats
  • Cable Ties - Stainless Steel, Chemical & Fire Resistant Cable Ties   
  • Flexible Conduit - Flameproof Liquid Tight Conduit Systems & Barrier Glands
  • Cable Sealing - Water, Gas & Firetight Cable Duct Seals  

Hazardous Area Cable Accessories - 3M, Flexicon, Panduit, Ellis Patents


Control & Distribution

Hazardous area control and distribution equipment including installation switches, isolators, plugs and sockets, control stations, distribution panelboards, motor starters and full control systems to customer specification. Key suppliers : Marechal, Stahl, Appleton, Pepperl+Fuchs (Walsall) and Petrel. 

  • Plugs & Sockets
  • Distribution Panels & Boards
  • Control Stations & Push Buttons
  • Isolators & Switch Disconnectors
  • Load Disconnect Switches & Motor Starters

Hazardous Area Plugs, Sockets, Isolators, Control Stations


Mobile Devices & Communications

Hazardous area communication devices to enable safe working, process monitoring, inspection, maintenance and surveillance in potentially explosive atmospheres. Key suppliers : Ecom, Stahl and Cordex.

  • Mobile Phones
  • Mobile Computers - Laptops, Handhelds & Tablets
  • Digital & Analogue Cameras - Compact, Dome & Zoom
  • 2-Way Radios

Hazardous Area Phones, Laptops, Computers, Cameras


Audible Signalling Devices & Visual Alarms

High-specification audible and visual signals (beacons/strobes and sounders/horns) for fire and gas detection in industrial onshore, marine and offshore hazardous locations. Key suppliers : Stahl and Clifford & Snell.

  • Sounders
  • Beacons
  • Manual Alarm Call Points


Hazardous Area Sounders Beacons - Stahl Clifford Snell


Electrical Enclosures & Junction Boxes

Hazardous area Ex e and Ex d junction boxes and electrical enclosures suitable for Zone 1 and Zone 2 hazardous areas and certified to ATEX and IECEx standards. Key suppliers : Abtech, Stahl, CEAG, Hawke, Weidmuller and FEAM.

  • Stainless Steel, Aluminium & GRP Enclosures & Junction Boxes
  • High Voltage Cable Junction Boxes & Enclosures
  • Flameproof & Explosion Proof Junction Boxes (Custom Build)


Electrical Enclosures Junction Boxes - Abtech Stahl Weidmuller


The “New Approach” ATEX directive supersedes the “Old Approach” ATEX Directive, the PotentiallyATEX Explosive Atmospheres Directive, 76/117/EEC – ATEX 94/9/EC (ATEX 95) facilitates free trade in the EC for hazardous area electrical equipment intended to be used in potentially explosive atmospheres. ATEX Directive 94/9/EC (ATEX 95) covers “Electrical Equipment” used in hazardous areas with potentially explosive atmospheres created by presence of gases, vapours, mists or dusts.

ATEX Certified Electrical Equipment for Hazardous Areas
ATEX is the name given to a set of European Directives relating to Hazardous Area Electrical Equipment Installations (Flammable Atmospheres) to avoid industrial accident or incident. ATEX Directive 94/9/EC (ATEX 95), is a directive adopted by the EU under the “New Approach” strategy.


Hazardous Area Zones Classification

  • Zone 1 - where flammable atmosphere is likely to occur during normal operation.
  • Zone 2 - where flammable atmosphere is not likely to occur during normal operation and if it does will only exist for short period of time, typically less than 10 hours per year.
  • Zone 21 - a place in which an explosive atmosphere, in the form of a cloud of combustible dust in air, is likely to occur occasionally in normal operation.
  • Zone 22 - a place in which an explosive atmosphere, in the form of a cloud of combustible dust in air, is likely to occur in normal operation but, if it does occur, will persist only for a short period

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