Hazardous Area
ATEX/IECEx certified explosion-proof enclosures, products, and custom solutions for hazardous environments.
Our Hazardous Area Enclosures Range
Ex d Flameproof Enclosures
Flameproof construction is designed to contain any internal explosion and stop flame propagation into the surrounding atmosphere. The enclosure is built to withstand the resulting internal pressure, while engineered flange joints help cool any escaping gases to below the ignition temperature, making the solution suitable for Zone 1, 2, 21, and 22 hazardous-area applications. Our Ex d enclosures incorporate precision-machined flange gaps that comply with stringent flamepath requirements. We also use high-performance gasket materials that maintain long-term compression even after repeated thermal cycling, along with captive stainless-steel screws that make maintenance easier in demanding field environments.
- IP66 protection rating as standard
- Stainless steel or aluminum construction options
- Multiple cable entry configurations, positioned to suit your application
- Full Ex d certification, including flamepath test documentation
- Temperature range: -50°C to +135°C (T4)
Ex e Increased Safety Enclosures
Enhanced safety protection is designed to eliminate the risk of arcs, sparks, and excessive temperatures through robust mechanical and electrical engineering. Since no sparking parts are allowed inside the enclosure, Ex e becomes a cost-effective option for Zone 1 and Zone 2 installations where the equipment is inherently non-sparking. Compared with standard enclosures, the main difference is the systematic prevention of faults that could become ignition sources. This is achieved by using oversized electrical connections, increased spacing between terminals, and materials selected to limit surface temperature rise.
- GRP, Stainless steel and aluminium Alloy construction options
- Minimum IP66 protection
- Lower total cost of ownership compared to Ex d solutions
- Quicker installation thanks to simplified cable entry
- Well-suited for motor terminal boxes, junction boxes, and control stations
Ex i Intrinsically Safe Enclosures
Intrinsic safety (IS) limits electrical energy to levels that cannot ignite a hazardous atmosphere—even under fault conditions. This is achieved using associated apparatus such as barriers or isolators, which restrict voltage and current. Our Ex i enclosures are purpose-built to house this equipment while providing robust environmental protection. We work closely with leading IS barrier manufacturers to ensure correct, reliable integration. Each enclosure is designed to support earth bars, terminal blocks, and tidy cable management, making installations cleaner, easier to maintain, and inspector-friendly.
- Suitable for Zone 0, 1, 2 (gas) and Zone 20, 21, 22 (dust)
- Accommodates Ex ia, Ex ib, and Ex ic classifications
- Purpose-designed for barrier and isolator systems
- Easy access for termination and troubleshooting
Zone 2 & 22 Non-Sparking Solutions
Zone 2 and Zone 22 account for most industrial hazardous-area installations. In these zones, an explosive atmosphere is expected only in unusual or fault conditions—generally less than 10 hours per year. Type "n" protection concepts (such as Ex nA, Ex nR, Ex nC, Ex nL) are a practical, budget-friendly choice, avoiding the bulk and higher cost typically associated with Zone 1-rated equipment. Under ATEX 60079-15, manufacturers may self-declare compliance for certain Zone 2 products. This can translate into shorter lead times, reduced overall cost, and equipment enclosures that are suited to real industrial environments, rather than being optimized solely for laboratory-style conditions.
- Ex nA: Non-sparking equipment designed so it cannot act as an ignition source
- Ex nR: Restricted-breathing protection achieved using IP66 sealing
- Ex nC: Sealed/enclosed switching with break contacts protected from the atmosphere
- Ex nL: Energy-limited circuits with defined power/energy restrictions
- Ex nZ: Basic pressurization to manage and control the internal atmosphere
Custom Made Explosion-Proof Products
We have the flexibility to customize individual switched interlocked socket outlets and switch-disconnected devices using specialized accessories. Based on the product categories, Power Electrical provides custom-made solutions with a high level of customization, backed by a broad range of products and compatible accessories.
Accessories for Switched Interlocked Sockets & Switch-Disconnectors
Accessories for Junction Boxes
Accessories for Local Control Stations & Power Distribution
Actuators & Operation-heads
Circuit Breaker Modules
Electronic Components
Instruments
Types of Ex Custom Electrical Products
Ex Products & Components
1. Ex Terminal and Junction Boxes: Terminal Enclosures Built for Industrial/ATEX/IECEx Demands. Ex terminal boxes, made of glass fibre reinforced polyester (GRP), Aluminium alloy, Stainless steel SS316L, are designed for use in explosive atmospheres: Zones 1, 2 (gases) and 21, 22 (dusts). They feature high resistance to corrosion and UV radiation, ensuring long-term durability even in harsh industrial environments. The boxes are used in industries such as chemical, petrochemical, and power generation. Internal mounting screws, made of corrosion-resistant materials, significantly increase the durability and service life of the entire structure.
2. UPS/NON-UPS PDB (Power Distribution Board): A PDB is mainly built to distribute electrical power safely from an incoming supply to multiple outgoing circuits. In hazardous environments—such as oil and gas facilities, chemical plants, or any location with explosive atmospheres—power distribution must be designed with extreme safety in mind. The choice between a UPS (Uninterruptible Power Supply) PDB and a standard (non-UPS) PDB depends entirely on the criticality of the equipment being powered. Enclosures are available in two different executions: cover fixed to body by antiloosening screws and cover jointed to body by hinges.
3. Isolation Switches: Ex ATEX isolation switches are advanced devices that can also act as a main and safety switch (they are disconnectors and switches in the AC-23 and AC-3 use category). Ex isolation switches have been designed for the safe and permanent disconnection of electrical circuits in gas and dust hazardous areas. Thanks to the use of high-quality components, robust modular construction and compliance with the requirements of the ATEX and IECEx directives, these circuit breakers are the ideal solution for industrial plant designers, machine manufacturers and end users for whom safety and reliability are a priority.
4. Sockets and Plugs for Ex Zones: Explosion-proof plugs and sockets are specialised electrical connectors suitable for use in Zones 1, 2, 21 and 22. Their extremely robust housings tightly isolate any potential ignition sources. In the event of a fault, the spark is trapped inside the housing and does not enter the explosive atmosphere. This solution effectively protects people, equipment and the entire infrastructure from a potential ignition source entering the vicinity of the explosive atmosphere. Explosion-proof sockets can be designed for wall or flange mounting.
Used in:
5. ATEX / IECEx Cable Glands: ATEX & IECEx cable glands are engineered to securely terminate and fasten electrical cables to equipment, ensuring a safe and dependable connection for machinery and industrial installations. They are commonly used with power, control, instrumentation, data, and communication cables, wherever a robust cable entry system is required. In addition to providing strain relief, these glands help seal enclosures and enhance protection against dust, moisture, and water, making them well-suited for demanding environments exposed to vibration, water contamination, and extreme temperatures. Available in metallic, non-metallic, or hybrid constructions, ATEX & IECEx cable glands are widely used across industries that rely on electrical, power control, instrumentation, automation, and related systems.
Certifications
Our products meet international quality and safety standards
Need Explosion-Proof Solutions?
Contact our technical team for customization requests, detailed specifications, and certified hazardous area solutions.
