Class II — NEC separates dust into Class II (Groups E, F, G); IEC integrates dust into the same zone framework (Zone 20/21/22) with dust groups IIIA, IIIB, IIIC
What is the stated equivalent for Class II — NEC separates dust into Class II (Groups E, F, G); IEC integrates dust into the same zone framework (Zone 20/21/22) with dust groups IIIA, IIIB, IIIC?
For Class II, stated equivalent is Zone 20/21/22; meaning is NEC separates dust into Class II (Groups E, F, G); IEC integrates dust into the same zone framework (Zone 20/21/22) with dust groups IIIA, IIIB, IIIC, verified against its source on 2026-08-11.
Dust handling: NEC separates dust into Class II (Groups E, F, G); IEC integrates dust into the same zone framework (Zone 20/21/22) with dust groups IIIA, IIIB, IIIC.
— exknowledge.com, retrieved 2026-08-11
- Designation
- Class II verified
- Stated equivalent
- Zone 20/21/22 verified
- Meaning
- NEC separates dust into Class II (Groups E, F, G); IEC integrates dust into the same zone framework (Zone 20/21/22) with dust groups IIIA, IIIB, IIIC verified
Source
- exknowledge.comhttps://exknowledge.com/pages/nec-500-vs-atex-iec.html