# Class III — North American vs IEC/ATEX explosion protection designations

For Class III, category is area classification; basis or note is Ignitable fibers, recorded from its source on 2026-08-06.

- **Category:** area classification _(our reading, not quoted from the source)_
- **North American designation:** Class III _(verified: appears in the quote below)_
- **Basis or note:** Ignitable fibers _(verified: appears in the quote below)_

## What the source says

> Class III | Ignitable fibers

## Source

- https://www.inframena.com/hazardous-area-classification-equivalency-guide/

Last verified: 2026-08-06. Review by: 2028-08-05.
Part of [North American vs IEC/ATEX explosion protection designations](https://referencesource.org/ex-classification-system-crosswalk/).