VFD Terminology

  • VFD
    • Variable Frequency Drive also known as
    • Variable Speed Control
    • Adjustable Speed Device
  • HazLoc
    • Hazardous Location Area, given a classified / rated area such as Class I Division 1 Grps A, B, C, D @ temp code T5. This means hazardous gases are present all the time, with a composition of A, B, C, D gases (see HazLoc table) based on an ignition temperature of T5 (see temperature code table)