IE4–IE5 Electric Motors

IE4 and IE5 electric motors represent advanced motor technologies in today’s industry, belonging to the highest energy efficiency classes. DRG Motor provides solutions in this field that deliver both performance and sustainability for businesses. Thanks to their low energy consumption, these motors significantly reduce operational costs while their environmentally friendly design minimizes the carbon footprint.

In addition to high efficiency, their strong torque capacity and stable operation make them reliable performers in heavy industry applications, such as crushers and screening plants. With a durable design that ensures long service life and reduces maintenance needs, IE4 and IE5 motors guarantee production continuity in continuously operating systems. Offering a wide range of power and speed options, these motors are the ideal solution for industries seeking energy savings, reliability, and high performance.

Efficiency Classes

  • IE1 → Standard Efficiency

  • IE2 → High Efficiency

  • IE3 → Premium Efficiency

  • IE4 → Super Premium Efficiency

  • IE5 → Ultra Premium Efficiency

IE4 Electric Motors (Super Premium Efficiency)

  • Efficiency: 2–3% higher than IE3.

  • Losses: Lower thermal losses → reduced energy consumption.

  • Technology:

    • High-quality magnetic laminations

    • Improved cooling

    • More efficient winding designs

  • Applications:

    • Continuously operating machines such as pumps, fans, compressors

    • Industrial plants with high energy costs

IE5 Electric Motors (Ultra Premium Efficiency)

  • Efficiency: 2–3% higher than IE4; theoretically the highest achievable.

  • Technology:

    • Typically permanent magnet synchronous motors (PMSM), synchronous reluctance motors (SynRM), or hybrid solutions

    • Used with low-loss electronic drives

  • Advantages:

    • Extremely low energy consumption

    • Less heating → longer service life

    • Enables more compact and lightweight motor designs

  • Applications:

    • Industries requiring high precision and energy efficiency (automotive, food, chemical, HVAC systems)

    • Energy-saving projects in large industrial facilities