Division 1
For Division 1, market / system is NEC and CEC; stated equivalent is Zone 0 / Zone 20, verified against its source on 2026-08-11.
- Designation
- Division 1 verified
- Market / system
- NEC and CEC verified
- Stated equivalent
- Zone 0 / Zone 20 verified
What the source says
Type of Area NEC and CEC* ATEX and IEC Definitions General CA Class II Division 1 & 2 US Class III Division 1 & 2 FM 3600 Con nuos A place in which an explosive atmosphere is Requirements Division 1 Zone 0 / Zone 20
— euroswitch.com, retrieved 2026-08-11
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
Stated equivalent
euroswitch.com says stated equivalent is Zone 0 / Zone 20, as of 2026-08-11.
Type of Area NEC and CEC* ATEX and IEC Definitions General CA Class II Division 1 & 2 US Class III Division 1 & 2 FM 3600 Con nuos A place in which an explosive atmosphere is Requirements Division 1 Zone 0 / Zone 20
https://www.euroswitch.com/wp-content/uploads/euroswitch-hazardous-area-guide_V6.pdf
euroswitch.com says stated equivalent is Zone 1 / Zone 21, as of 2026-08-11.
NEC and CEC* ATEX and IEC Definitions General CA Class II Division 1 & 2 US Class III Division 1 & 2 FM 3600 Con nuos A place in which an explosive atmosphere is Requirements Division 1 Zone 0 / Zone 20 CA Class III Division 1 & 2 hazard con nually present Ex US Zone 20, 21, 22 ISA 60079-0 Dust Igni on Proof (DIP) US Class II Division 1 UL 1203 Intermittent A place in which an explosive atmosphere is Division 1 CSA C22.2 No. 25 Division 1 Zone 1 / Zone 21
https://www.euroswitch.com/wp-content/uploads/euroswitch-hazardous-area-guide_V6.pdf
Source
- euroswitch.comhttps://www.euroswitch.com/wp-content/uploads/euroswitch-hazardous-area-guide_V6.pdf