In industries like oil & gas, mining, and chemical manufacturing, the risk of explosions is a daily reality. Devices used in such hazardous environments must meet strict safety standards—and that’s where UL certification comes in.
If you’re searching for UL intrinsically safe equipment, it’s important to understand what this certification means, how it compares to ATEX/IECEx, and how to verify compliance. This guide will help you navigate UL certification for intrinsically safe devices, compare it with other global standards, and identify trusted UL-certified products.
What Is UL Certification for Intrinsically Safe Devices?
UL (Underwriters Laboratories) is a globally recognized safety organization based in the United States that tests, certifies, and sets standards for product safety.
When a device is UL certified as “intrinsically safe”, it means it has been tested and verified to operate safely in explosive atmospheres. UL ensures that the device:
Limits the energy (thermal and electrical) available for ignition
Will not cause sparks or arcs under normal or abnormal conditions
Is compliant with specific hazardous location classifications
This certification is especially crucial in Class I, Division 1 and Division 2 areas—locations where flammable gases or vapors are present regularly or occasionally.
What Does “UL Intrinsically Safe” Mean?
A device labeled UL intrinsically safe has passed tests under UL standards like UL 913 or UL 60079, confirming it can be safely operated in environments with explosive materials.
UL Intrinsically Safe Devices Must:
Maintain electrical energy below ignition thresholds
Be hermetically sealed or properly enclosed
Use components rated for hazardous areas
Withstand temperature extremes without failure
This makes UL-certified devices ideal for use in:
Oil rigs
Refineries
Petrochemical plants
Underground mines
Wastewater treatment plants
What Are the Key UL Standards for Intrinsic Safety?
Here are the most commonly referenced UL standards related to intrinsic safety:
| Standard | Scope | Applies To |
|---|
| UL 913 | Intrinsically safe apparatus and associated apparatus for Class I, II, III Div 1 & 2 | Phones, tablets, sensors |
| UL 60079-11 | Equipment protection by intrinsic safety for explosive atmospheres | Global harmonization with IECEx |
| UL 121201 | Safety requirements for Class I, Div 2/Zone 2 electrical equipment | Non-incendive devices |
| UL 61010 | General safety requirements for electrical equipment | Lab and industrial tools |
UL 913 is the most widely cited standard in North America for Class I, Division 1 rated equipment.
How Does UL Certification Compare to ATEX and IECEx?
If you operate internationally, you may encounter ATEX (Europe) and IECEx (global) certifications. Here’s how UL stacks up:
Comparison Table: UL vs ATEX vs IECEx
| Feature | UL Certification | ATEX | IECEx |
|---|---|---|---|
| Region | USA/Canada | European Union | Global |
| Zone System | Class/Division (e.g., Class I, Div 1) | Zone 0, 1, 2 | Zone 0, 1, 2 |
| Governing Body | UL, OSHA, NFPA | European Commission | IECEx Scheme (IEC) |
| Most Relevant Standard | UL 913 | EN 60079 | IEC 60079 |
| Common in | North America | EU, UK | Australia, Middle East, Asia |
If you’re working in the U.S. or Canada, UL certification is essential. For international or multi-national projects, look for dual certification (UL + IECEx/ATEX).
Why Is UL Certification Important in Hazardous Locations?
UL certification isn’t just a label—it’s a legal and safety requirement in many jurisdictions.
Key Benefits of UL Intrinsically Safe Certification:
Regulatory Compliance: Required by OSHA and NFPA for hazardous zones
Reduced Liability: Avoids fines, shutdowns, and insurance issues
Worker Safety: Devices won’t trigger ignition, even during faults
Peace of Mind: Verified by one of the most trusted third-party testing labs
Without UL approval, companies risk deploying non-compliant equipment in dangerous locations—a costly and potentially deadly mistake.
How Do You Verify If a Device Is UL Intrinsically Safe?
To check if a product is UL certified for intrinsic safety:
Look for the UL Marking on the device (e.g., “UL Listed”, “Class I, Div 1, UL 913”).
Check Product Documentation – Certificates should clearly state the applicable UL standard (e.g., UL 913).
Search UL’s Online Database: Use UL’s Product iQ Database (requires registration).
Buy from Verified Sources: Only purchase intrinsically safe products from trusted retailers like Intrinsically Safe Store.
Which Devices Are UL Certified as Intrinsically Safe?
Here are some of the top UL intrinsically safe devices available now, all listed at Intrinsically Safe Store:
UL Certified Intrinsically Safe Devices
| Device | UL Certification | Key Features | Best Use Case |
|---|
| Ecom Smart-Ex® 02 DZ1 | UL 913, Class I Div 1 | Android smartphone, 4G/LTE, IP68 | Mobile inspection, field work |
| i.Safe MOBILE IS530.1 | UL 913, Class I Div 1 | Push-to-talk, Android OS, rugged build | Oil & gas, mining sites |
| Aegex 10 Tablet | UL 913, Class I Div 1 | Windows 10, 10.1″ screen, long battery | Data collection in hazardous areas |
| Getac EX80 Tablet | UL 913, Class I Div 1, Zone 0 | Windows OS, MIL-STD-810G, 8” display | Ultra-hazardous zones |
| Sonim XP8 IS Phone | UL 913, Class I Div 1 | Glove-compatible, LTE, rugged smartphone | Industrial communication |
Speak With an Expert — We’ll help you choose the safest solution for your environment.
FAQs About UL Intrinsically Safe Devices
Is UL certification required for intrinsically safe devices in the U.S.?
Yes. UL or an OSHA-recognized NRTL (Nationally Recognized Testing Laboratory) must certify intrinsically safe devices used in hazardous U.S. work zones.
Can a device be both UL and ATEX/IECEx certified?
Absolutely. Many global manufacturers seek dual or triple certifications to ensure their devices can be deployed worldwide.
What’s the difference between UL 913 and UL 60079?
UL 913 focuses on U.S.-specific intrinsic safety standards using the Class/Division system.
UL 60079 aligns with global IEC standards using the Zone system.
How long is UL certification valid?
UL certifications do not expire but must be maintained. Any significant product changes may require re-certification.
Are UL-certified devices more expensive?
They can be slightly more expensive due to rigorous testing, but they offer immense value in safety, compliance, and reliability.
Final Thoughts: Why UL Intrinsically Safe Certification Matters
When it comes to hazardous environments, there’s no room for error. UL intrinsically safe certification ensures your devices are designed and tested to prevent ignition, protect workers, and meet strict safety regulations.
Whether you’re working on an offshore platform, in a refinery, or underground in a mine, always look for UL 913 or UL 60079 certification—and trust devices from reputable brands available at Intrinsically Safe Store.
