# T4A — Certification marks and hazardous-area classifications: cross-market equivalences

For T4A, applies to is 120º C (248ºF), verified against its source on 2026-08-11.

- **Designation:** T4A _(verified: appears in the quote below)_
- **Applies to:** 120º C (248ºF) _(verified: appears in the quote below)_

## What the source says

> 120º C (248ºF) T4A

## Source

- https://www.euroswitch.com/wp-content/uploads/euroswitch-hazardous-area-guide_V6.pdf

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [Certification marks and hazardous-area classifications: cross-market equivalences](https://referencesource.org/certification-standards-equivalence/).