WEG Electric Motors for Hazardous Locations – Installation and Maintenance Guide


This manual details the procedures for installing, operating, and maintaining electric motors designed by WEG for use in hazardous (explosive) environments. It includes comprehensive technical information such as IEC and NEMA compliance, protection levels, and safety regulations.

Key Points

  • Covers motors ranging from low to high voltage with frame sizes from IEC 56–630 and NEMA 42–9606/10.
  • Describes proper procedures for installation, alignment, lubrication, cooling, and electrical connection.
  • Explains motor nameplate layouts with examples.
  • Conforms to regional standards including IEC/EN (Europe), NEC/NEMA (North America), and NBR (Brazil).
  • Includes multiple protection types such as Ex eb, Ex db, and Ex tb with EPL classifications.
  • Provides specific handling and storage instructions for various motor types.
  • Details insulation resistance testing and evaluation methods.
  • Illustrated procedures for vertical-horizontal transitions of HGF and W22 motor types.