ATEX lighting zone 22 and 21 and 2

ATEX Light Fitting | Lighting for Zone 21, 22 and 2

Product features

Excellent quality-to-price ratio

Up to 4 cable glands M20 or M25 for ease of installation

Pass-through wiring eliminating junction boxes

Can be used as emergency lighting (optional)

Diffuser and internal mounting plate on hinges (no loose parts)

3 diffusers providing varied light beams

Very high efficiency (from 141 to 181 lm/W)

Lenses directing the light beam (optional)

Atex Ex safety requirements for workplaces and equipment used in explosive atmospheres symbol

IECEx Ex symbol

CNBOP Ex logo

CE European health, safety, and environmental protection standards

IP66 ingress protection code symbol

Working temperature for -40 Celsius symbol

Working temperature 50 Celsius  icon

Digital Addressable Lighting Interface protocol for digital lighting control symbol

Technical Data

Photometric data: please see details below

Certification: ATEX, IECEx, CNBOP (pending)

ATEX marking:

Atex Ex symbolII 2 D  Ex tb IIIC T70 °C Db ( Cert. no.: KSCP 23ATEX0021X )

Atex Ex symbolII 3 G  Ex ec IIC T4 Gc ( Cert. no.: KSCP 23ATEX0022X )

IECEx marking:

Ex tb IIIC T70 °C Db ( Cert. no.: IECEx KSCP 23.0045X )

Ex ec IIC T4 Gc ( Cert. no.: IECEx KSCP 23.0045X )

Material of Enclosure: GRP

Material of Diffuser: UV stabilized PC (Polycarbonate)

Diffuser in three versions: clear/ opal / frosted

Impact resistance: HIGH (acc. to EN IEC 60079-0)

IP rating: IP66 / IP67

Color Temperature: 4000 K (optionally: 3000K or 5000 K)

CRI: >80 (optionally: >70 or >90)

Ambient temperature: -40°C – +50°C (ATEX)


ATEX OptiLine fixtures provide a very good quality-to-price ratio, and thanks to the implemented solutions, they can also significantly reduce the final costs of lighting installation. Send a non-binding inquiry to find out about the cost-effectiveness of using our fixtures.

Specify the number and size of glands and accessories (switches, lights, etc.). The system will suggest the minimum dimensions of the box. You will also be able to download a quote for the entire set.

Fast and cost efficient installation of lighting fixtures:

The ATEX OptiLine fixture features through-wiring with two easily accessible power connectors located at both ends of the lamp. The body of the lamp accommodates up to 4 cable glands M20 or M25. These solutions allow for the elimination of expensive Ex-rated junction boxes, as well as a reduction in the consumption of power cables and cable trays. Meanwhile, the larger M25 gland provides the flexibility to use cables from various manufacturers, including thicker non-flammable cables, as well as cables with increased conductor diameter to reduce voltage drops over distance.

  • connect luminaires in a pass-through manner
  • eliminate junction boxes
  • reduce power cable consumption
  • minimize cable trays and hanger usage
  • shorten luminaire installation time
  • lower lighting installation costs

Direct the light as you need

up to 22 additional lenses

easily illuminate key areas

avoid obstacles

one fixture, multiple light directions

easy lens replacement

OPTILINE 12-3 30 10 25 FROZEN (luminous intensity in a polar coordinate system)

Install quickly and safely – no loose parts:

the large space inside facilitates power connection

unscrew the screws by hand to quickly access the electronics

the open diffuser does not fall thanks to the hinges

the open plate with the LED module does not fall thanks to the hinges

all components of the fixture are interconnected

OPTILINE 12-3 30 10 25 FROZEN (luminous intensity in a polar coordinate system)


box foto front


The ATEX OptiLine series fixture is equipped with a high-efficiency LED module. Depending on the version, it can be used as both general lighting and/or emergency lighting. The body is made of fiberglass-reinforced polyester (GRP), while the diffuser is made of UV-stabilized polycarbonate. The diffuser of the fixture is available in three variants: transparent, frosted, and opal. The Ex OptiLine lighting fixture allows the use of lenses that enable easy change of the direction of lighting.

Through-wiring with two power connectors, as well as the possibility to use up to four M20 or M25 cable glands, allows connecting the fixture in various configurations without the need to use distribution boxes. This solution also reduces the length of power cables and cable trays, and allows the use of cables from different manufacturers and of various cross-sections.

The ATEX OptiLine fixture does not have any loose parts that could fall off during installation. The diffuser and the internal mounting plate are connected to the body via hinges, and the diffuser clasps and mounting plate screws are integrated with the housing.


TheOptiLine ATEX fixtures are designed for use both outdoors and indoors. They have been engineered for use in Zone 2, where there is a risk of explosion due to gases, vapors, or mists of flammable liquids, assigned to explosion groups IIA, IIB, or IIC, and to temperature classes T4, T3, T2, T1. Additionally, they are suitable for use in Zones 21 and 22, where there is a risk of explosion of flammable dusts from explosion groups IIIA, IIIB, or IIIC with an ignition temperature of a 5mm dust layer higher than 145°C.

The explosion-proof OptiLine fixture is designed for use in harsh and moderate working conditions. Its high resistance to chemicals, mechanical damage, and weather conditions makes it an excellent choice for the chemical, petrochemical, energy, woodworking, and food industries.

However, it can also be effectively utilized in manufacturing plants and warehouses, where long durability and ATEX, IECEx, and CNBOP certification are required.

Electrical and photometric data

OptiLine 670 mm length and 20 W power

Fixture typeDiffuser
flux [lm]
lm / W
Flux emergency
power [lm]
Voltage [V]Photometry
OptiLine 60-1******Clear:34851731650AC 230, 50Hz / DC 230, 0Hz
Frosted:33241651550AC 230, 50Hz / DC 230, 0Hz
Opal:29311461400AC 230, 50Hz / DC 230, 0Hz

OptiLine 670 mm length and 25 W power

Fixture typeDiffuser
flux [lm]
lm / W
Flux emergency
power [lm]
Voltage [V]Photometry
OptiLine 60-2******Clear:44221782150AC 230, 50Hz / DC 230, 0Hz
Frosted:42181692040AC 230, 50Hz / DC 230, 0Hz
Opal:37191491820AC 230, 50Hz / DC 230, 0Hz

OptiLine 670 mm length and 30 W power

Fixture typeDiffuser
flux [lm]
lm / W
Flux emergency
power [lm]
Voltage [V]Photometry
OptiLine 60-3******Clear:51821752550AC 230, 50Hz / DC 230, 0Hz
Frosted:49431662420AC 230, 50Hz / DC 230, 0Hz
Opal:43581472160AC 230, 50Hz / DC 230, 0Hz

OptiLine 1276 mm length and 38 W power

Fixture type Diffuser
flux [lm]
lm / W
Flux emergency
power [lm]
Voltage [V] Photometry
OptiLine 12-1****** Clear: 6739 176 4100 AC 230, 50Hz / DC 230, 0Hz
Frosted: 6504 170 3890 AC 230, 50Hz / DC 230, 0Hz
Opal: 5700 153 3480 AC 230, 50Hz / DC 230, 0Hz

OptiLine 1276 mm length and 48 W power

Fixture typeDiffuser
flux [lm]
lm / W
Flux emergency
power [lm]
Voltage [V]Photometry
OptiLine 12-2******Clear:86651814100AC 230, 50Hz / DC 230, 0Hz
Frosted:83631753890AC 230, 50Hz / DC 230, 0Hz
Opal:73291533480AC 230, 50Hz / DC 230, 0Hz

OptiLine 1276 mm length and 58 W power

Fixture typeDiffuser
flux [lm]
lm / W
Flux emergency
power [lm]
Voltage [V]Photometry
OptiLine 12-3*****Clear:103421794900AC 230, 50Hz / DC 230, 0Hz
Frosted:99811734650AC 230, 50Hz / DC 230, 0Hz
Opal:87471524160AC 230, 50Hz / DC 230, 0Hz

Parameters calculated for temperature 25oC, color temperature 4000K, CRI > 80. Tolerance +/- 5%.

FROSTED diffuser

Strong, softly diffused light without glare

9 981 lm without glare

Smart diffuser eliminates the risk of glare and eye fatigue.

Optimal for indoor and outdor

The best balance between light intensity and lack of glare.

OPTILINE 12-3 30 10 25 FROZEN (luminous intensity in a polar coordinate system)
OPTILINE 12-3 30 10 25 FROZEN (luminous intensity in a polar coordinate system)

OPAL diffuser

A solution dedicated to large spaces, where people are often present.

Best for indoor use

Zero glare, zero eye fatigue, very good color rendering

Lighting for larger areas

The special diffuser strongly diffuses the light, making it soft.

OPTILINE 12-3 30 10 25 OPAL (luminous intensity in a polar coordinate system) (1)
OPTILINE 12-3 30 10 25 OPAL (luminous intensity in a polar coordinate system) (1)

CLEAR diffuser

Powerful Illumination. Best efficiency. The highest flexibility.

Excellent power

Up to 10342 lm works perfectly outdoor.

Direct the light with 22 lenses

Exceptional ability to freely change the direction of illumination.

OPTILINE 12-3 30 10 25 CLEAR (luminous intensity in a polar coordinate system)

Dimensions and mounting options

Fixture typeLL1B
OptiLine 60-**********670400173
OptiLine 12-**********1276800173
Dimensions depend on mounting typeHB1
Ceiling bracket D18119157
Ceiling bracket D40143,7200
M8 eye bolt for suspended mounting154,2
Pole mount bracket R50156,2
Wall bracket K45184,7
Ceiling bracket C153,4

All dimensions are in millimeters (mm).

Ceiling bracket D18

Ceiling bracket D40

M8 eye bolt for uspended mounting

Pole mount bracket R50

Wall bracket K45

Ceiling bracket C



The Cost of Ex Fixtures for Explosion Hazard Zones

The purchase price of EX fixtures for explosion hazard Zones is just one of many factors that contribute to the total cost of building a lighting installation. In many cases, labor and installation materials needed to set up the same lighting can account for 20 to 40% of the final cost. By choosing the optimal ATEX lamp for your needs, you can significantly reduce installation costs, and thus the overall investment.

Why the Choice of Explosion-proof Lamp Affects Installation Cost

Before we created the Ex fixtures OptiLine LED series, we spent years designing and installing general and emergency lighting in the industry, including in explosion-prone areas. To implement these tasks, we used fixtures from various manufacturers, which allowed us to understand their advantages and limitations affecting the final cost of the lighting installation.

It turned out that the choice of lighting fixture had a significant impact on the ease and speed of installation, as well as the amount of installation materials used, such as trays for building cable routes, power cables, or junction boxes.

It should be remembered that:

  1. We are talking about lamps designed to operate in explosion hazard Zones, which requires the use of several times more expensive ATEX-certified junction boxes.
  2. In many cases, general fixtures also work as emergency fixtures, which requires the use of more expensive non-flammable power cables and junction boxes, and often also central batteries, the price of which also depends on the solutions used in the fixture.
  3. In the case of some industries, stainless steel installation materials are required, which means the use of more expensive boxes, trays, and other installation elements.

How to Choose an Ex Fixture

As we mentioned earlier, we are not just a manufacturer of explosion-proof fixtures, but we also design and install industrial lighting systems. Experience in this area has allowed us to identify the most common problems with lamp installation that increase the costs of the entire investment. Based on this, we have created an exceptionally flexible fixture for general and emergency lighting for explosion hazard Zones while keeping its production cost at a reasonable level.

Below, we present the most important solutions implemented in the OptiLine fixture, which result in reducing the investment cost in general and emergency lighting in the industry. This is made possible by simplifying the lighting design process, its installation, and subsequent electrical testing of the fixtures.

General and Emergency Lighting in One Fixture

The Ex lamps OptiLine LED series can function both as general lighting fixtures and as emergency ones. Therefore, you don’t have to construct separate installations to fulfill these two roles. Importantly, the fixture with an emergency mode function can be powered from a central battery (OptiLine CBX/CBY model) or from built-in batteries in the fixture (OptiLine A1 model).

EX Lamps with a Broad Range of Luminous Power

The OptiLine general lighting fixtures, which also function as emergency lights, come in two lengths (670 and 1276 mm) and six power ratings (20, 25, 30, 38, 48, 58 W). Combined with 3 different transparency diffusers for the cover (details below), this results in as many as 18 different luminous power values – ranging from 2900 to over 10000 lm.

One Fixture, Three Different Diffusers for Various Applications

The general Ex LED lighting fixtures from the OptiLine series, which can also function as emergency lights, offer three different diffusers to choose from: transparent, frosted, and opal. Each of these has distinct light transmittance properties.

  1. Transparent diffusers: general intended for areas requiring very high luminous power. It is most commonly used outdoors or for illuminating vast indoor spaces.
  2. Frosted diffusers: an excellent solution for outdoor areas where there’s a need to reduce glare risk. It’s also suitable for indoor spaces where luminous power is essential, but with reduced glare.
  3. Opal diffusers: ensures pleasant, diffused lighting without any glare risk. It’s the perfect choice for indoor spaces where both good lighting and the comfort of workers are paramount.

This provides incredible flexibility concerning the light distribution and the lamp’s characteristics.

High Mechanical Resistance and IP Rating

The high resistance to impacts, in accordance with the EN IEC 60079-0 standard, attests to the fixture’s durability against mechanical damages. Additionally, a high IP rating (IP66/67) ensures the superior quality of the housing and the diffuser, guaranteeing their long-lasting performance.

Change of Lighting Direction Through Lenses

The Ex OptiLine fixture allows for the use of lenses that can modify the lamp’s direction of illumination. This is yet another feature that can significantly simplify the installation process, leading to reduced costs. But how does it work?

For most fixtures, if you need to illuminate specific areas, like a valve, fire extinguisher, or switch, you’d typically need to use special mounts that direct the entire fixture towards the target. This can unnecessarily complicate the installation and often increase its cost. The ATEX OptiLine fixture doesn’t require any additional mounting accessories. You install it in a conventional manner in an easily accessible location with the appropriate lens that directs the light. You have a choice of up to 22 different types of lenses.

Use as a High-Bay Fixture

A special focusing lens concentrates the light beam, allowing for mounting the fixtures at increased heights. In many cases, this enables the use of OptiLine fixtures as High-Bay lamps. This, in turn, allows for the use of a single type of fixture in a given space without the need for special structures to lower the mounting point. All of this translates to reduced investment and maintenance costs.

Customizable Emergency Light Output

Each fixture can have a different light output in emergency mode. This solution increases flexibility during the design of the lighting installation, which leads to reduced installation costs.

For instance, instead of adjusting the lighting level of a particular area through expensive control systems or the height of the fixture installation, it is sufficient to set the light output power for each fixture individually.

Connect Fixtures as You Need and Save

Many fixtures have significant limitations regarding the number and size of cable glands that can be mounted on their body. The most expensive in terms of installation are fixtures with a single gland of one size or even with a factory-outlet power cable.

Consider a situation where you need to install dozens of fixtures along a wall. If the fixture has only one cable gland, it is necessary to use ATEX junction boxes, which are typically several times more expensive than the standard solution. Furthermore, this approach requires a higher consumption of power cables and cable trays.

However, if the fixture has two cable glands on one side, it’s possible to route the power cable directly from one lamp to the next without the need for junction boxes. This approach also requires less cable and cable trays. All of this results in tangible savings. There are many such scenarios in the industry where additional cable glands lead to savings.

That’s why the Ex OptiLine fixture allows for the installation of up to 4 cable glands M20 or M25 (two on each side).

Larger Cable Gland in the Fixture = More Freedom in Cable Selection

The ability to use M25 cable glands in the OptiLine explosion-proof fixture allows the use of cables with larger cross-sections. This provides the freedom to choose their manufacturer and the opportunity to use thicker non-flammable cables.

A gland with a larger diameter also allows for the use of cables with larger cross-sections of wires to reduce voltage drops over length. This is especially important for emergency lighting fixtures, which are expected to have cables that can operate at temperatures above 600°C.

Quick and Safe Installation of Ex Fixtures

A thoughtful design without loose components is another advantage of explosion-proof area fixtures. How does it work? The fixture’s diffuser and the internal mounting plate, on which the LED module is located, are hinged.

Opening the diffuserinvolves detaching the metal clasps on one side of the lamp (clasps on the other side act as hinges, eliminating the risk of the diffuser falling). Since it’s an ATEX-certified fixture, regulations require this action to need a tool. To keep it as simple as possible, we designed the clasps to be opened with a single screwdriver motion.

Importantly, if needed, the diffuser can be completely detached from the body.

To open the mounting plate, just unscrew two easily accessible screws. With their specially designed heads, you can do this by hand or with a screwdriver. Importantly, we’ve applied so-called “captive screws” here, meaning that once unscrewed, they remain in the mounting plate. Such an open fixture provides convenient access to electrical components, including cable connectors, for quick power connection.

The assurance that no part of the lamp will fall during installation is not just a convenience but also a safety feature. A lost screw that accidentally falls into a process installation can not only contaminate the product but also be a cause of equipment malfunction or, in extreme cases, be a source of mechanical sparks, which can contribute to the ignition of an explosive atmosphere.

LED Fixtures for Explosion-Prone Areas

The explosion-proof fixtures of the OptiLine series are certified with ATEX and IECEx, allowing their use in Zones 21, 22 (dust) as well as Zone 2 (gases, vapors of flammable liquids) explosion hazard areas.

What are ATEX / IECEx OptiLine luminaires

ATEX / IECEx OptiLine luminaires refer to a specific type of lighting product that combines the features and certifications of both ATEX and IECEx standards. These luminaires are designed and manufactured to meet the safety requirements and regulations outlined by both ATEX and IECEx for use in potentially explosive atmospheres. They incorporate high-efficiency LED light sources and are suitable for both basic and emergency lighting applications. The designation of “ATEX / IECEx OptiLine luminaires” signifies that these luminaires have obtained certifications from both ATEX and IECEx, ensuring their compliance with the highest safety standards for hazardous environments.

Why to use an ATEX / IECEx OptiLine luminaires

ATEX / IECEx OptiLine luminaires should be used in environments with potentially explosive atmospheres because they are specifically designed and certified to ensure safety and compliance with stringent regulations. These luminaires provide energy-efficient lighting, durability against challenging conditions, and versatility for both basic and emergency lighting needs. By using them, organizations can prioritize the safety of their workers, meet regulatory requirements, and benefit from reliable and efficient lighting solutions in hazardous locations.