OptiLine ATEX emergency fixtures with internal battery for zones 21, 22, and 2

Ex emergency lighting fixtures with a microinverter
Donat Czapski

Donat Czapski – I am at your disposal

+48 695 244 220



We know the requirements of insurers

From ATEX AUDIT to protection implementation

We provide 24/7 service

OptiLine – emergency lighting fixtures with a microinverter

for explosion hazard zones: 2, 21, 22

Explosion-proof cable glands for non-armored cables hardo 4

The linear explosion-proof LED OptiLine fixture, dedicated to gas zones: 2 and dust zones: 21 and 22, guarantees high-quality lighting while maintaining exceptional resistance to dust, water, and UV radiation. It is perfectly adapted for lighting halls and industrial spaces in various industries, including petrochemical, chemical, oil, energy, gas, wood, paper, and food. Developed to optimize installation costs for investors, OptiLine is an ideal solution for demanding industrial applications. It can serve as both basic and emergency lighting, eliminating the need for separate installations.

2in1: Basic & Emergency

2 lengths, 6 powers, 3 diffusers

22 directing lenses

Ex emergency lighting fixtures with a microinverter
Ex emergency lighting fixtures with a microinverter
OptiLine basic lighting fixtures ATEX

Basic technical data:

Certificates: ATEX, IECEx, CNBOP
ATEX (dust): II 2 D
ATEX (gas): II 3 G
IECEx (dust): Ex tb IIIC T70oC Db
IECEx (gas): Ex ec IIC T4 Gc

Material of enclosure: GRP
Material of diffuser: UV stabilized PC (Polycarbonate)
Impact resistance: HIGH (acc. to EN IEC 60079-0)
IP: IP66/IP67
Fixture lenght: 670 / 1276 mm

CRI: >80 (optional >70 and >90)
Ambient temperature: from 0oC to +45oC
Color temperature: 4000K (3000K or 5000K)
Number of cable glands: up to 4
Cable gland size: M20 and M25

Ex emergency lighting fixtures with a microinverter
Ex emergency lighting fixtures with a microinverter
Ex emergency lighting fixtures with a microinverter
Ex emergency lighting fixtures with a microinverter

All parameters were measured at a temperature of 25°C, a color temperature of 4000K, CRI >80. Tolerance for the value of light flux +/-5%. Power tolerance +/-5%. The table presents fixtures with a transparent diffuser (KT) – light values and efficiency of the complete fixture will differ for fixtures with frosted and opal diffusers. imensions are given considering the mounting with a D18 ceiling bracket. Other mounting systems are also available.

Product typeFluminous
flux [lm]
Power [W]Whole fixture efficacy [lm/W]Flux emergency
power [lm]
Ambient temperature [oC]Approximate weight [kg]Dimension L [mm]Dimension L1 [mm]Dimension B [mm]Dimension B1 [mm]Dimension H [mm]
OptiLine 60-1****** A1 KT348520,801688000 ÷ +454,00670400173157119
OptiLine 60-2****** A1 KT442225,601738000 ÷ +454,00670400173157119
OptiLine 60-3****** A1 KT518230,601698000 ÷ +454,00670400173157119
OptiLine 12-1****** A1 KT673939,6017012500 ÷ +456,601276800173157119
OptiLine 12-2****** A1 KT866549,2017612500 ÷ +456,601276800173157119
OptiLine 12-3****** A1 KT1034258,9017612500 ÷ +456,601276800173157119
OptiLine basic lighting fixtures ATEX
Ex emergency lighting fixtures with a microinverter

How do we reduce the costs of lighting installation?

HARDO, derived from the WOLFF GROUP, was established as an independent entity, based on over two decades of experience in designing lighting fixtures for explosion hazard zones.

We understand how important costs are to investors. Therefore, we aimed to create a linear explosion-proof fixture that minimizes investors’ expenses while maintaining the highest safety parameters. Below, you will see on two animations the results of the designers’ work, leading to the minimization of costs necessary to purchase materials and labor.

No junction boxes, fewer cables

You connect the fixtures directly, without the need for expensive Ex boxes. You also need fewer cables and cable trays.

Ex emergency lighting fixtures with a microinverter
Ex emergency lighting fixtures with a microinverter

Directional lenses, with which you can change the light direction without changing the fixture

Need to change the angle of the light? Need to illuminate important places such as switches, valves, extinguishers? In the case of most lighting fixtures, you would have to either buy and install an additional fixture or resort to unconventional mounting methods. OptiLine fixtures, however, allow the use of up to 22 different lenses, which change the angle of light without the need to purchase new fixtures or use unconventional mounting methods.

Wide range of luminous power and impressive efficiency of ATEX OptiLine fixtures

Ex emergency lighting fixtures with a microinverter

The OptiLine lighting fixture is synonymous with high quality and versatility, offering a wide range of luminous power and impressive efficiency. With the option to choose between two lengths (600 mm and 1270 mm), three power variants, and three types of diffusers, it creates 18 configurations of emergency lighting fixtures (which can also function as basic lighting):

  • basic light streams from 2931 lm to 10342 lm,
  • emergency light streams from 650 lm to 1250 lm,
  • high efficiency of complete fixtures from 141 lm/W to 176 lm/W guarantees energy efficiency and reduction of operational costs.

Not so obvious, but changing reality competitive advantages

Fixtures in versions: transparent, frosted, and opal

OptiLine fixtures can be used as both primary and emergency lighting in industrial plants, with particular consideration of external and internal explosion hazard zones. To ensure the fixture’s wide application, we included the possibility to choose among three types of diffusers: transparent, frosted, and opal.

OptiLine basic lighting fixtures ATEX

Transparent diffuser

The transparent diffuser is suitable for areas requiring intense luminous power, both outdoors and in large interiors.

  • Highest light streams – up to 10342 lm
  • Highest flexibility – in this case, you can use 22 directing lenses
OptiLine lighting fixtures ATEX

Frosted diffuser

The frosted diffuser is ideal for lighting outdoor and indoor spaces where the balance between light power and minimizing glare risk is important.

  • Light streams up to 9981 lm without glare
  • Gently diffused light
OptiLine lighting fixtures ATEX

Opal diffuser

The opal diffuser is an excellent choice for interiors where the priority is diffused, comfortable light.

  • Light streams up to 8747 lm without glare
  • Perfect for interiors
OptiLine lighting fixtures ATEX 12

Innovative solution with glands and power connectors

Traditional lighting fixtures often encounter limitations in the number and size of glands, leading to increased installation costs. For example, installing dozens of fixtures with a single gland requires the use of expensive ATEX junction boxes, generating additional costs. The Ex OptiLine fixture, allowing the installation of up to four M20 or M25 glands, is a much more economical solution. With two glands on each end, cables can be routed directly between fixtures, significantly reducing cable and cable tray costs.

Want to use flame-retardant cables or those with larger cross-sections of wires? No problem!

The OptiLine fixture with M25 glands allows the use of thicker cabling, essential in cases where cables must withstand extreme temperatures above 600°C, as in emergency lighting systems. This feature not only increases safety but also allows for the choice of cables from different manufacturers and the use of wires with larger cross-sections, minimizing voltage drops over long distances.

From an installer’s perspective: safe and quick installation

Ex emergency lighting fixtures with a microinverter

From an installer’s perspective: safe and quick installation The OptiLine emergency lighting fixture, created for use in explosion hazard zones, stands out with a design that ensures safety and ease of installation. The diffuser and the internal mounting plate with the LED module are equipped with hinges. Opening the diffuser requires the use of a tool, in accordance with the ATEX Directive. Meanwhile, captive screws, allowing the opening of the mounting plate without the risk of losing and falling, further increase safety. This thoughtful design minimizes the risk of introducing loose elements into the production installation, which can prevent serious breakdowns and hazards.

It is also worth noting the amount of space inside the fixture. This fact will be particularly appreciated by installers who will be able to access all connections without problems.

About the manufacturer of fixtures – HARDO company

Polish company

The only 100% Polish producer involved in both lighting and electrotechnics in an explosion-proof execution.

From practitioners to practitioners

HARDO lighting fixtures and other products were created as a result of hundreds of hours spent talking to designers, installers, and end-users.

Key values: high availability, competitive price

The production plant and warehouse located in Poland allow for maintaining constant availability of fixtures, which affects not only the price but also the speed of order execution.

Ex lighting – offer

Industrial Lighting

We specialize in industrial lighting, with a particular focus on facilities where there is: dust, corrosive atmosphere, explosion and fire hazards.


Ex-Ceiling pendant light fittings and floodlights

Mainly used in explosion-hazard areas, in both land and marine installations, in storage buildings, production halls, and chemical industry facilities.

Ex-linear light fittings

They are made of high-quality plastic with excellent mechanical properties and high resistance to chemicals.

Ex LED lighting

Our light fittings combines the latest LED technology with the protection of a reliable housing solution. As a result, they are the ideal solution for lighting tasks in harsh and hazardous environments.

Ex-escape sign luminaires ATEX

Ex-Signal and escape sign luminaires

The EXIT series of explosion-protected escape sign lumi­naires fulfils the requirements of ATEX Directive 2014/34/EU and EN 60598, Section 2.22 for emergency lighting lumi­naires. The luminaires are suited for marking escape routes and exits in hazardous areas.

Secure your industrial plant

Do you have any questions?

Donat Czapski Grupa WOLFF zdjecie
DONAT CZAPSKI - I am at your disposal

We will answer questions about: offer, technical specification, delivery, assembly.

or send your inquiry