CAT 2 ARC FLASH CLOTHING: THE MOST COMMON LEVEL EXPLAINED

If you work around energized electrical systems, chances are your safety gear carries a CAT 2 arc flash rating. But what exactly does that mean—and why is it the most common level in workplaces today?

WHAT DOES CAT 2 MEAN?

CAT 2 (Category 2) is part of the NFPA 70E standard, which classifies protective clothing based on its Arc Thermal Performance Value (ATPV).

CAT 2 garments must have an ATPV between 8 and 25 cal/cm², meaning they can protect against arc flash events generating up to that level of thermal energy.

Typical CAT 2 protection includes:

• FR shirts and pants worn together

• FR coveralls

• Arc-rated jackets or layered systems

WHY CAT 2 IS THE INDUSTRY STANDARD

Most day-to-day electrical maintenance and troubleshooting tasks fall within the CAT 2 risk level. It provides reliable protection without the bulk of higher-rated (CAT 3 or CAT 4) gear.

CAT 2 garments balance comfort, mobility, and safety, making them ideal for electricians, utility crews, and maintenance personnel.

WHAT TO LOOK FOR IN CAT 2 CLOTHING

To ensure full compliance, every garment should display:

• ATPV or EBT value ≥ 8 cal/cm²

• NFPA 70E and ASTM F1506 or EN ISO 11612 / EN 61482 markings

• Permanent labels with pictograms, care symbols, and traceability

Always wear CAT 2 clothing as part of a complete PPE system—including gloves, arc-rated face shields, and hearing protection.

CARE AND REPLACEMENT

Proper laundering is critical. Follow ISO 15797 or manufacturer instructions:

• Wash ≤ 60 °C with neutral detergent

• Avoid bleach or fabric softeners

• Replace garments that are torn, contaminated, or label-faded

  
  

THE DOMEX SAFETY DIFFERENCE

At DomexSafety.com, we specialize in CAT 2 arc flash shirts, pants, and coveralls built for durability and comfort.

Every product meets EN ISO 11612, EN 1149-5, and NFPA 70E standards—delivering long-term protection through repeated industrial laundering.