Ex Proof Stop-Start Switch in UAE | ATEX Stop-Start Switch Dubai
The Ex Proof Stop-Start Switch in UAE provides safe local control for ventilation fans, extraction systems, and other compatible electrical equipment installed in hazardous industrial areas. The ATEX Stop-Start Switch INT Series allows operators to start or stop connected equipment close to the installation point while maintaining an appropriate level of protection against explosive gas or combustible dust atmospheres.
Industrial ventilation systems often require a local isolating or operating switch beside the fan. This arrangement allows technicians to cut power before inspection, cleaning, or maintenance. It also gives operators a clear and accessible control point during routine operation.
The INT/ATEX Series supports hazardous-area configurations for both gas and dust applications. Published markings include II 3G Ex nR IIC T6 Gc IP66 for selected gas atmospheres and II 2D Ex tb IIIC T85°C Db for selected combustible dust environments. It is designed in accordance with applicable requirements of the ATEX Directive 2014/34/EU and the Low Voltage Directive 2014/35/EU.
Atex Hub supplies the ATEX Stop-Start Switch INT Series across Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah, Fujairah, and Umm Al Quwain. Supply is also available across Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Europe, Africa, and worldwide.
What Is the ATEX Stop-Start Switch INT Series?
The ATEX Stop-Start Switch INT Series is a hazardous-area electrical accessory used to operate or isolate a compatible ventilation fan or electrical load. It provides a convenient local control point near the equipment, allowing personnel to start the system during normal operation and stop it before inspection or maintenance.
A standard industrial switch may not provide adequate protection in an area containing flammable gases, vapours, or combustible dust. In contrast, the INT/ATEX unit uses a protected enclosure and certified design intended for specific explosive-atmosphere classifications.
The switch can form part of an ATEX fan installation, including axial fans, centrifugal fans, roof extractors, duct fans, tunnel ventilation equipment, and portable air-extraction systems. Its enclosure protects the internal electrical contacts from dust and water while also supporting the hazardous-area protection method indicated by its certification.
The standard non-ATEX INT safety switch is intended for installation beside a fan so operators can disconnect power before handling the equipment. The INT/ATEX version extends this function to selected explosive atmospheres.
Key Features of the Ex Proof Stop-Start Switch
The Ex Proof Stop-Start Switch combines local equipment control with hazardous-area protection. Its compact design makes it suitable for mounting near industrial fans and other compatible electrical equipment.
- ATEX Hazardous-Area Design – Developed for selected explosive gas and combustible dust environments.
- Gas and Dust Configurations – Available with published markings including II 3G Ex nR IIC T6 Gc and II 2D Ex tb IIIC T85°C Db.
- IP66 Enclosure Protection – The enclosure resists dust ingress and powerful water jets, supporting demanding industrial installations.
- Local Stop-Start Control – Allows operators to control compatible fans or equipment close to the installation point.
- Maintenance Safety Support – Provides a nearby means of stopping or isolating equipment before inspection and servicing.
- Industrial Enclosure Construction – Protects internal electrical components against environmental exposure and accidental contact.
- Clear Operating Function – Straightforward controls allow easy identification of equipment operating status.
- Wide Ventilation Compatibility – Suitable for integration with selected ATEX axial, centrifugal, duct, roof, and extraction fans.
How the Flame Proof Stop-Start Switch Works
The Flame Proof Stop-Start Switch controls the electrical circuit connected to the fan or equipment. When the operator activates the start function, the switch completes the relevant control or power circuit and allows the connected equipment to operate.
When the stop function is activated, the switch interrupts the circuit. The fan motor then stops, allowing technicians to approach the equipment after following the required isolation and lockout procedures.
Depending on the installation design, the switch may control the motor directly or send a signal to a contactor, starter, or control panel. Larger motors often require an external contactor and motor-protection system because the local switch alone may not be designed to carry the full starting current.
The enclosure provides environmental and explosion-protection performance according to its certified construction. For dust applications, the enclosure helps prevent combustible dust from entering and contacting potential ignition sources. For gas applications, the certified protection method limits the risk of ignition under the approved operating conditions.
Applications of the ATEX Stop-Start Switch in UAE
The ATEX Stop-Start Switch in UAE supports local operation and maintenance safety in industries where hazardous gases, vapours, or combustible dust may occur. It is commonly installed near ventilation equipment so workers can access the control point without returning to a distant panel.
- Oil and Gas Facilities – Controls ventilation fans in pump areas, compressor buildings, process rooms, and maintenance zones.
- Petrochemical and Refinery Plants – Provides local fan control near hazardous process buildings, extraction systems, and utility areas.
- Chemical Processing Facilities – Supports ventilation equipment in production rooms, storage zones, and chemical-handling areas.
- Paint and Coating Areas – Controls compatible extraction fans used to remove solvent vapours and airborne contaminants.
- Wastewater Treatment Plants – Operates ventilation systems in pump rooms, pits, chambers, and process enclosures.
- Marine and Offshore Facilities – Supports local fan control in shipyards, ports, offshore modules, and coastal industrial installations.
- Combustible Dust Areas – Controls extraction equipment in selected grain, powder, food-processing, and material-handling environments.
- Industrial Workshops and Warehouses – Provides convenient stop-start control for hazardous-area ventilation and extraction systems.
Technical Specifications
The following specifications describe the principal published characteristics of the INT/ATEX stop-start switch. The final electrical rating and connection arrangement should match the motor, control circuit, hazardous-area classification, and project requirements.
| Technical Parameter | Specification |
|---|
| Product name | ATEX Stop-Start Switch INT Series |
| Series designation | INT/ATEX |
| Product type | Hazardous-area local stop-start switch |
| Primary function | Starting, stopping, or locally controlling compatible fans and equipment |
| Typical installation | Installed close to the fan or ventilation equipment |
| Gas equipment category | II 3G |
| Gas protection marking | Ex nR IIC T6 Gc |
| Dust equipment category | II 2D |
| Dust protection marking | Ex tb IIIC T85°C Db |
| Ingress protection | IP66 |
| Gas group | IIC |
| Dust group | IIIC |
| Gas temperature class | T6 |
| Maximum dust surface temperature | 85°C |
| Equipment Protection Level – Gas | Gc |
| Equipment Protection Level – Dust | Db |
| Applicable directives | 2014/34/EU and 2014/35/EU |
| Installation position | Wall, structure, or equipment-adjacent mounting |
| Control method | Manual local stop-start operation |
| Connection arrangement | Project-specific according to motor and control circuit |
| Application type | ATEX ventilation and hazardous-area electrical systems |
The published product information identifies the INT/ATEX as an ATEX stop-start switch designed according to Directives 2014/34/EU and 2014/35/EU, with gas, dust, and IP66 protection markings.
Construction and Key Benefits
The Hazardous Area Stop-Start Switch uses a sealed industrial enclosure to protect the internal switching components. Its compact design allows installation close to the fan while keeping the controls accessible to operators and maintenance personnel.
- Local Equipment Control – Reduces the need to operate the fan from a distant central panel.
- Improved Maintenance Safety – Allows personnel to stop the fan before inspection, cleaning, or mechanical work.
- High Dust Protection – The IP66 enclosure supports dusty industrial environments.
- Water-Jet Resistance – The enclosure suits locations exposed to washdown, rain, or industrial moisture.
- Gas and Dust Suitability – Separate certified configurations support selected gas and combustible dust zones.
- Compact Installation – The switch can be mounted near the fan without occupying extensive wall or panel space.
- Simple Operator Interface – Clearly identified controls support fast and straightforward operation.
- Ventilation-System Integration – Works as part of a complete fan control arrangement with contactors, starters, and protective devices.
Selection, Installation and Maintenance
Correct switch selection requires more than matching the product to the fan name. Engineers must consider the hazardous-area zone, gas or dust group, temperature class, equipment category, motor current, voltage, starting method, and control-panel arrangement.
The complete installation must maintain the certified protection level. Therefore, cables, glands, terminals, junction boxes, contactors, and protective devices must also suit the hazardous-area classification.
- Confirm whether the installation is in a gas zone, dust zone, or non-hazardous area.
- Match the switch category and Equipment Protection Level to the site classification.
- Verify the required gas group IIC or dust group IIIC suitability.
- Confirm that the T6 rating or 85°C maximum surface temperature meets the site requirement.
- Check the motor voltage, full-load current, starting current, and control method.
- Use a contactor or motor starter when the connected motor exceeds the switch’s direct-control capability.
- Install the switch close enough to the fan for safe local operation.
- Mount the enclosure securely on a rigid surface.
- Use certified hazardous-area cable glands and stopping plugs.
- Maintain the specified IP66 enclosure sealing during cable entry.
- Connect protective earthing according to the electrical design.
- Isolate the incoming supply before installation or maintenance.
- Confirm start and stop functions during commissioning.
- Label the switch clearly with the connected fan or equipment identification.
- Inspect the enclosure for cracks, corrosion, loose fasteners, or damaged seals.
- Keep the operating buttons clean and unobstructed.
- Do not open the enclosure while energised in a hazardous atmosphere.
- Include the switch in the site’s hazardous-area inspection schedule.
- Use qualified personnel for wiring, testing, and maintenance.
Certifications, Standards and Compliance
The INT/ATEX Series supports recognised European requirements for hazardous-area and low-voltage electrical equipment. The exact certificate should match the model and configuration supplied.
Why Choose Atex Hub for Ex Proof Accessories?
Atex Hub supplies hazardous-area control accessories according to the electrical load, fan type, hazardous classification, and installation environment. This technical approach helps customers select a switch that suits the complete system rather than relying only on the product description.
- Hazardous-Area Expertise – Support for ATEX, Explosion Proof, Flame Proof, Ex Proof, and Intrinsically Safe Accessories.
- Complete UAE Supply – Delivery across Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah, Fujairah, and Umm Al Quwain.
- Application-Based Selection – Guidance based on voltage, motor current, starting method, gas group, dust group, and temperature class.
- Complete Fan-Control Solutions – Supply of switches, starters, contactors, control panels, junction boxes, cable glands, and related accessories.
- Technical Documentation Support – Assistance with datasheets, declarations, certificates, drawings, and project submittals.
- GCC Distribution – Supply across Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain.
- Worldwide Export Support – Delivery to customers across Europe, Africa, Asia, and international project locations.
- Industrial Sector Experience – Product support for oil and gas, chemical, marine, wastewater, manufacturing, and infrastructure projects.
Frequently Asked Questions
1. What is an ATEX Stop-Start Switch?
An ATEX Stop-Start Switch provides local control for compatible equipment installed in a classified gas or combustible dust environment.
2. Where should the INT/ATEX switch be installed?
The switch is normally installed close to the fan so operators can stop the equipment before inspection or maintenance.
3. Is the INT Series suitable for explosive gas atmospheres?
Yes. The published gas configuration carries the marking II 3G Ex nR IIC T6 Gc.
4. Can the switch operate in combustible dust areas?
Yes. The published dust configuration carries the marking II 2D Ex tb IIIC T85°C Db.
5. What ingress-protection rating does the switch provide?
The INT/ATEX configuration provides IP66 protection against dust and powerful water jets.
6. Can the switch control an industrial fan directly?
It may control a suitable small load directly, but larger motors generally require a compatible contactor or motor starter.
7. Does the switch provide motor-overload protection?
The stop-start switch primarily provides local control. A separate overload relay, motor-protection device, or starter may be required.
8. Is the switch suitable for outdoor installations?
Its IP66 enclosure supports many outdoor and industrial applications, provided the complete installation follows the certified conditions.
9. Can Atex Hub supply related accessories?
Yes. Atex Hub supplies compatible control panels, starters, cable glands, junction boxes, isolators, and fan accessories.
10. Does Atex Hub supply the INT Series outside the UAE?
Yes. Atex Hub supplies ATEX Accessories across the GCC, Europe, Africa, Asia, and worldwide.
Conclusion
The ATEX Stop-Start Switch INT Series provides dependable local control for hazardous-area ventilation fans and compatible industrial electrical equipment. Its accessible stop-start function allows operators to control the equipment close to the installation point and supports safer maintenance procedures.
The available gas and dust configurations include II 3G Ex nR IIC T6 Gc and II 2D Ex tb IIIC T85°C Db, while the IP66 enclosure provides strong protection against dust and water exposure. These characteristics make the switch suitable for oil and gas, petrochemical, chemical, marine, wastewater, coating, and industrial ventilation applications.
Atex Hub supplies the Ex Proof Stop-Start Switch in UAE with technical selection support, certification documentation, related fan-control accessories, and delivery across the UAE, GCC, Europe, Africa, and worldwide.
