# (XP) — Certification marks and hazardous-area classifications: cross-market equivalences

For (XP), market / system is US; stated equivalent is Division 1; meaning is Explosion Proof; applies to is Class I; governing standard / law is UL 1203, verified against its source on 2026-08-11.

- **Designation:** (XP) _(verified: appears in the quote below)_
- **Market / system:** US _(verified: appears in the quote below)_
- **Stated equivalent:** Division 1 _(verified: appears in the quote below)_
- **Meaning:** Explosion Proof _(verified: appears in the quote below)_
- **Applies to:** Class I _(verified: appears in the quote below)_
- **Governing standard / law:** UL 1203 _(verified: appears in the quote below)_

## What the source says

> Explosion Proof (XP) US Class I Division 1 UL 1203

## 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/).