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Abtech has extended the capability of its Gamma range of LED luminaires which are now offered with Ex-certification for Zone 1 hazardous areas. Suitable for use in both gas and dust environments, the Gamma has been designed to withstand the rigours of operational oil and gas production. The complete range is both ATEX and IECEx certified.


The Zone 1 Gamma is a 72W intrinsically safe luminaire providing around 10,000 lumens of crisp white light. It is equally effective whether installed as a traditional floodlight or suspended to act as a lowbay luminaire. Abtech’s innovative approach to LED development, combined with the release of our own iSMART driver technology, gives the Gamma several design advantages.

Firstly, certification was achieved without the need for heavy Ex d enclosures (commonly used by luminaire manufacturers as a method of isolating unprotected LEDs from exposure to potentially explosive gasses) making the Gamma relatively light in weight.

Additionally, the need for annual inspection of any exposed flamepath is removed, thus reducing lifetime maintenance costs. Secondly thanks to Abtech’s iSMART driver technology (with built in failsafe mechanisms to prevent sparking), there is no requirement to encapsulate the LED’s - even the best clear encapsulates result in light loss due to internal refraction. Some have been known to become cloudy over time, particularly when exposed to the complex hydrocarbon compounds associated with oil and gas production. As the Gamma does not require encapsulation, transfer of the light generated is maximized, resulting in a very efficient 138lm/w and no reduction in lumen output through encapsulate degradation.

In line with its Zone 2 counterpart, the new Zone 1 version is constructed from marine grade stainless steel with a toughened glass diffuser and incorporates stainless steel fixings throughout. It is designed to operate within an ambient range of -30°C to +55°C (T3/T4) ensuring the luminaire can withstand the harshest of environments.

All Gamma variants incorporate harmonic and overvoltage protection to EN61000-3-2 & EN61000-3-3. The control gear also features thermal cut off protection to maintain LED life. All Gamma luminaires are tested at an operational ambient of 40°C and supplied with a five-year complete system warranty.