Arc Flash Suit Selector

Your electrical safety requirements drive the decision on the right Arc Flash PPE. The higher the risk assessment, the higher Arc Rating your PPE needs to have. For question about your Arc Rating (AR) requirements, contact your electrical safety advisor or connect with Customer Service for further information at [email protected] or 800-322-3348.

The National Fire Protection Association (NFPA) uses four Arc Flash PPE Categories to classify ranges of arc flash hazards. These categories correspond with the electrical safety requirements.

In reference to the Canadian Standard for Electrical Safety – CSA Z462 – the Arc Rated PPEs of 75 cal, 100 cal and 140 cal are combined into a separate category five.


4 CAL

PPE Category 1 covers a minimum of 4 calories in which Arc Rated PPE is required.

8 CAL

PPE Category 2 covers a minimum of 8 calories in which Arc Rated PPE is required.


25 CAL

PPE Category 3 covers a minimum of 25 calories in which Arc Rated PPE is required.


140 CAL

PPE Category 5 covers a minimum of 75 calories in which Arc Rated PPE is required.

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