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ATEX Motors – A European Directive

This European Directive, mandatory since July 2003, provides a classification for electric motors in areas containing explosive atmospheres. More than product specification, the directive gives special attention to the production process including design and sale. Certification for the system is provided along with the product certification. ATEX Motor Directive 94/9/EC also classifies equipment operating in explosive atmospheres into groups and categories following the same classification basis used by CENELEC.

ATEX Motors – A European Directive

ATEX Explosion Proof Motors – High Efficiency IE2 & Premium Efficient IE3

  • Three-phase, multivoltage, IP55, TEFC
  • Output: 0.37 up to 315 kW
  • Frames: 90S up to 355M/L
  • Voltage: 220-240/380-415V (up to 100L) / 380-415/660V (from 112M and up)
  • Class “F” insulation (T=80K)
  • Continuous duty: S1, Design N
  • Ambient temperature: 40°C, at 1000 m.a.s.l.
  • Squirrel cage rotor/aluminum die cast
  • Lip Seal on both endshields
  • Dimensions according to IEC 60072
  • Performance characteristics according to IEC 60034-30

A classification in Zone 1 means that the motor is also suitable to operate also in Zone 2.   The same applies to Groups and Categories: Ex d and Ex de motors are suitable to operate also in Group IIA and Category 3.

non sparking premium motor

ATEX Non-Sparking (Ex nA) Premium Efficiency IE3

  • Three-phase, multivoltage, IP55, TEFC
  • Output: 0.12 up to 315 kW
  • Frames: 63 up to 355M/L
  • Voltage: 220-400/380-415V (up to 100L) 380-415/660V (from 112M and above)
  • Mounting: B3T
  • Class “F” insulation (ΔT=80K)
  • WISE® (WEG Insulation System Evolution) insulation system – Suitable for inverter duty applications*
  • Continuous duty: S1, Design N
  • Ambient temperature: 40°C, at 1000 m.a.s.l.
  • Squirrel cage rotor / Aluminum die cast
  • V’Ring seal