Wednesday, 6 May 2015

Dave Hawley, ABB's UK General Manager for motors & generators, writes: Specifying motors for hazardous areas can quickly become a mine field for many end-users and OEMs with divisions, classes, zones, groups and protection levels all requiring consideration.

To help overcome this problem, my team has produced a pocket guide that explains the hazardous area requirements for motors according to North American, ATEX and IECEx standards.

The front of the pocket guide contains ATEX and IECEx marking guidance with an explanation of what they mean, along with tables detailing protection concepts.  The ingress protection codes, atmosphere groups, equipment groups, equipment categories, protection levels, ATEX categories and zone of use are also detailed.

The reverse of the pocket guide details the equivalent information for North American motors and sets out tables with protection concepts according to NEC and CEC standards as well as standards by product type and enclosure ratings.

There is a comparison table included as well that sets out atmosphere groups, classification of divisions, zones and temperature classification data for North American, ATEX and IECEx motors to show the cross-over between hazardous area standards for each territory.

A suite of 4 motor pocket guides are available:

  1. IEC and NEMA motor dimensions pocket guide
  2. ABB motor designations pocket guide
  3. ABB hazardous area motor pocket guide
  4. Industrial world voltages pocket guide

You can order your suite of pocket guides by sending an e-mail to with ‘Pocket Guides’ in the subject line.

Keep up to date with ABB - join our mailing list today.