# Non-incendive — North American vs IEC/ATEX explosion protection designations

For Non-incendive, category is protection concept; iec / atex designation is Ex nA / Ex ec; iec standard is IEC 60079-15 / -7; basis or note is Normal operation cannot cause ignition, recorded from its source on 2026-08-06.

- **Category:** protection concept _(our reading, not quoted from the source)_
- **North American designation:** Non-incendive _(verified: appears in the quote below)_
- **IEC / ATEX designation:** Ex nA / Ex ec _(verified: appears in the quote below)_
- **IEC standard:** IEC 60079-15 / -7 _(verified: appears in the quote below)_
- **Basis or note:** Normal operation cannot cause ignition _(verified: appears in the quote below)_

## What the source says

> Non-incendive | Ex nA / Ex ec | IEC 60079-15 / -7 | Normal operation cannot cause ignition

## Source

- https://exknowledge.com/pages/nec-500-vs-atex-iec.html

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/).