{"id":34280,"date":"2026-08-22T08:00:00","date_gmt":"2026-08-22T08:00:00","guid":{"rendered":"https:\/\/jelproducts.nl\/?p=34280"},"modified":"2026-09-25T19:31:14","modified_gmt":"2026-09-25T18:31:14","slug":"can-industrial-led-lighting-be-used-in-hazardous-environments","status":"publish","type":"blog","link":"https:\/\/jelproducts.nl\/en\/blog\/kan-industriele-led-verlichting-worden-gebruikt-in-explosiegevaarlijke-omgevingen\/","title":{"rendered":"Can industrial LED lighting be used in potentially explosive environments?"},"content":{"rendered":"

Short answer<\/p>

In an Ex zone, only the ATEX marking that matches the zone counts. A high IP or IK rating never replaces it.<\/p>

Yes, industrial LED lighting can be used in potentially explosive environments, but only if the luminaires have a valid ATEX certification. Standard LED luminaires are prohibited in these zones, regardless of their IP rating or build quality. In this article you will find answers to the most frequently asked questions about ATEX lighting: from zone classifications and technical operation to certification markings and the difference with IECEx.<\/p>

0 \/ 1 \/ 2<\/p>

zones for gas, vapour and mist<\/p><\/div>

20 \/ 21 \/ 22<\/p>

zones for combustible dust<\/p><\/div>

T6<\/p>

highest temperature class: surface no more than 85 \u00b0C<\/p><\/div><\/div>

Directive 2014\/34\/EU for the equipment and 1999\/92\/EC for the workplace. The zone classification follows NEN-EN-IEC 60079-10-1 (gas) and 60079-10-2 (dust).<\/p><\/div>\n\n

What JEL does and does not do here<\/p>

JEL Products has no ATEX certification<\/p>

We are therefore not the supplier for zones 0, 1, 2, 20, 21 and 22. If your specification calls for ATEX, we say so up front and refer you to a certified Ex manufacturer.<\/p>

What we do provide is the lighting of the site, the installations and the halls outside the zoned areas, based on the zone map from your explosion protection document. That is where the environmental factors discussed later in this article apply: corrosion, heat, vibration and high-pressure cleaning.<\/p><\/div>\n\n\n\n\n

What are ATEX zones and what lighting requirements apply?<\/h2>\n\n\n\n

Not every industrial environment is the same when it comes to explosion risk. ATEX zones are areas where an explosive atmosphere can occur due to the presence of flammable gases, vapors, mists, or dust. The European ATEX directives divide these areas into zones based on how often and how long an explosive atmosphere is present,and that classification directly determines which lighting you are allowed to use there.<\/p>\n\n\n\n

The zone classification determines which protection level is required:<\/p>\n\n\n

Zone<\/th>What applies<\/th><\/tr><\/thead>
Zone 0 \/ Zone 20:<\/strong><\/td>Explosive atmosphere is continuously or for long periods present. The highest level of protection is required (category 1).<\/td><\/tr>
Zone 1 \/ Zone 21:<\/strong><\/td>An explosive atmosphere occurs occasionally during normal operating conditions. Category 2 equipment is required.<\/td><\/tr>
Zone 2 \/ Zone 22:<\/strong><\/td>Explosive atmosphere is rare and of short duration. Category 3 equipment is permitted.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n

Zones 0, 1 and 2 relate to gases and vapours. Zones 20, 21 and 22 are intended for environments with combustible dust, such as in the food industry or during the storage of fine powder. Luminaires in each zone must be demonstrably approved for those specific conditions.<\/p>\n\n\n\n

How does explosion-proof LED lighting work technically?<\/h2>\n\n\n\n

The principle may be surprising: explosion-proof lighting does not prevent an explosion, but ensures that the luminaire itself can never act as a source of ignition. This is achieved through specific construction methods that isolate the electrical components from the surrounding atmosphere.<\/p>\n\n\n\n

The most commonly used protection concepts are:<\/p>\n\n\n\n

    \n
  1. Ex d (pressure-resistant enclosure):<\/strong> The housing is constructed so solidly that an internal ignition cannot propagate to the outside.<\/li>\n
  2. Ex e (enhanced safety):<\/strong> Electrical connections and components are designed to prevent sparking and overheating.<\/li>\n
  3. Ex i (intrinsic safety):<\/strong> The electrical energy in the circuit is so low that ignition is physically impossible.<\/li>\n
  4. Ex ec (non-sparking, formerly Ex nA):<\/strong> Used in Zone 2, where the circuit does not produce sparks under normal conditions.<\/li>\n<\/ol>\n\n\n\n

    In addition to the protective enclosure, temperature control is crucial. Every ATEX luminaire has a maximum surface temperature, expressed as a temperature class (T1 through T6). This limit must never be exceeded, as the surrounding atmosphere could otherwise still ignite. LED technology has an advantage over traditional light sources in this regard: LEDs produce significantly less heat while providing the same level of light.<\/p>\n\n\n\n

    What do the ATEX certification markings on a luminaire mean?<\/h2>\n\n\n\n

    That series of letters and numbers on an ATEX luminaire may seem cryptic at first glance, but it is actually a coded description of the approved operating environment. They indicate at a glance for which zone, gas type, and temperature class the luminaire is certified. Correctly interpreting these markings is essential when selecting the right lighting.<\/p>\n\n\n\n

    A typical ATEX marking looks like this: II 2G Ex db IIC T6 Gb<\/strong>. The parts mean:<\/p>\n\n\n\n