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WAGO in Explosion Protection WAGO at Work This May Also Interest You Recommended Reading
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Device Groups for More Safety

Like the devices, gases, vapors, and dust are divided into various groups according to their properties. This division simplifies the right selection of devices for the various gases, vapors, and dusts.

Until the standard EN 60079 0:2009 was introduced, devices permitted in hazardous zones were divided into two groups. Since it came into force, it has been three: groups 1, 2 and 3.

WAGO in Explosion Protection

Principles of Explosion Protection

Everything worth knowing about Ex protection at a single glance.

Dividing the Device Groups

  • Group I: Devices for mines susceptible to firedamp.
  • Group II: Devices for use in area subject to gas explosion (not mines)
  • Group III: Devices for use in areas with flammable dust (not mines)

The electrical devices of Group II are also subdivided into the groups IIA, IIB, and IIC, depending on the type of atmosphere subject to explosion. This assignment affects the ignition protection types pressure-proof encapsulation (Ex d) and intrinsically safe (Ex i).

Devices for areas with flammable dust are also subdivided into the following groups depending on the type of dust:

  • Flammable lint
  • Non-conductive dust
  • Conductive dust

Device Division

GroupGasMaximum experimental safe gap MESGMinimum ignition current MIC
IIAPropane> 0.9 mm> 0.8
IIBEthylene0.5 … 0.9 mm0.45 … 0.8
IICHydrogen< 0.5 mm< 0.45

Read More Here

What happens during an explosion, which factors are important, and what protective measures are available? Everything you need to know about ATEX, Ex zones, ignition protection categories, etc.

Ex Protection Measures

Learn more

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Zone Divisions

Depending on the type of materials that occur, hazardous locations are not equally at risk. The frequency and duration of occurrence of one of these substances give rise to the different protective requirements for operating equipment.
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Directives, Standards and Regulations

The requirements for electrical equipment for hazardous locations are multi-layered: National and international determinations, guidelines and standards must be complied with to achieve the highest possible level of safety. We give you an overview of the most important regulations and recommendations, such as the ATEX directive.
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Types of Protection

Only equipment protected against explosion is permitted in Ex areas. Ignition protection categories are constructive and electrical measures for equipment and qualify as secondary explosion protection.
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Ignition Sources

If an atmosphere subject to explosion cannot be prevented in a work area, secondary explosion protection is brought to bear. Secondary measures include prevention of any ignition sources in the Ex area.
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What Is an Explosion?

Ex|plo|si|on; -s <lat.> (explosio) means "escaping under pressure." What happens during an explosion, which factors are important and what protective measures are available? You will learn everything you need to know about explosion protection right here.
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WAGO Products for Explosion Protection

Automation

Automation under adverse environmental conditions? WAGO products and solutions are made for this.

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Connection Technology

 

 

Approved for the Ex area: WAGO products form secure connections even under the most extreme conditions

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WAGO at Work

Customer Applications: Explosion Protection

As a partner and innovation leader, WAGO implements many interesting projects. Learn about the creative, efficient solutions we make possible in the process engineering area.

Safely Fill Explosive Substances

Feige FILLING GmbH is a leading producer of filling machines for free-flowing products. It designs Ex solutions for ATEX category 1 with WAGO technology.

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Modern Tunnel Construction

Contamination, vibrations, heat: As the controller for their mixed load system, Demostene + Partner AG chose a WAGO solution, which can handle anything.

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Safe Underground

In bituminous coal mining, only equipment with no danger of ignition is permitted. That’s why HAZEMAG & EPR relies on WAGO Controllers.

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This May Also Interest You

More from the Process Engineering Area

Whether modular process automation, explosion protection, cybersecurity or Process 4.0 – WAGO offers solutions for every challenge facing the industry.

Process 4.0

Transform and reshape processes digitally: WAGO is your reliable partner for custom development and implementation.

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Modular Process Automation

Modular systems concepts are the solution to constantly shifting market demands. WAGO supports your development process.

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Recommended Reading

WAGO in Other Industries

WAGO’s automation and electrical interconnection technologies are also popular beyond process engineering. Learn what solutions WAGO offers in other industries.

Marine and Offshore

Modern propulsion technology, networking subsystems – automation and digitization are standard on ships.

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Power Engineering

Modern automation and digitization technologies give rise to communicative smart grids.

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