DRG MOTOR – IE5 Electric Motors
“Ultra Premium Efficiency. Silent, Powerful, Future-Ready.”

What is an IE5 Motor? Exceptional Energy Efficiency
In industrial systems, every kilowatt of energy is now a cost factor.
IE5 class electric motors represent the “Ultra Premium Efficiency” level according to the IEC 60034-30-1 standard and are currently the highest energy efficiency class in the world.

IE5 motors offer:

  • 8–9% higher energy efficiency compared to IE3 motors,

  • 3–4% higher energy efficiency compared to IE4 motors.

This means less energy consumption, lower carbon emissions, and reduced operating costs at the same production capacity.

The DRG MOTOR IE5 series delivers tomorrow’s energy standard today:
high efficiency, low noise, long life, and full inverter compatibility.


DRG MOTOR IE5 Series Structure and Engineering Features

High-Tech Electromagnetic Design

  • Optimized stator winding geometry for maximum magnetic flux.

  • High-silicon low-loss laminated steel stack.

  • Rotor profile minimizing hysteresis and eddy current losses.

  • High-efficiency magnetic circuit for high torque / low current balance.

Material Quality:

ComponentFeature
Windings100% pure electrolytic copper – vacuum impregnated
BodyCast iron (GG20) – high vibration damping capacity
RotorLow-loss aluminum or copper cage rotor
BearingsSKF / NSK / C&U – high-temperature grease, silent and long-lasting
FanAerodynamic composite fan – silent cooling
CoversCast iron – high mechanical strength
PaintElectrostatic powder coating – RAL 7032, RAL 6028, RAL 5012

Protection and Durability

  • Protection class: IP55 / optional IP65

  • Insulation class: F Class (155°C)

  • Operation type: S1 (continuous)


Noise, Vibration, and Thermal Stability Performance

The DRG MOTOR IE5 series excels not only in energy efficiency but also in acoustic and mechanical comfort.
High balance precision (G 2.5 standard) and optimized fan design ensure extremely silent and vibration-free operation.

🔊 Noise Levels (dB(A)):

Power Range Speed    Noise LevelTest Standard
0.55 – 7.5 kW   1500 rpm     52–57 dB(A)   EN 60034-9
11 – 55 kW   1500 rpm     57–62 dB(A)   EN 60034-9
75 – 200 kW   1500 rpm     62–68 dB(A)   EN 60034-9
250 – 355 kW   1500 rpm     68–70 dB(A)   EN 60034-9

Aerodynamic fan design and the vibration-damping properties of the cast iron body keep noise levels below 70 dB(A).

Vibration Levels (mm/s – RMS):

Test StandardValueDescription
ISO 10816 / IEC 60034-14≤ 1.5 mm/sStandard operation
Low-vibration special production≤ 1.0 mm/sFor precision systems

Thermal Structure and Cooling:

  • Maximum winding temperature: 110°C

  • Maximum bearing temperature: 80°C

  • Thermal rise: <75K

  • Optional PTC/PT100 sensor thermal protection

The DRG MOTOR IE5 series maintains stable performance even in 24/7 operation.


Energy Efficiency, Savings, and Digital Compatibility

Efficiency Gains:

Motor Class   Efficiency Increase    Average Energy Savings
IE3 → IE4     +3–5%                 Up to 10%
IE4 → IE5     +3–4%             Up to 15%
IE3 → IE5     +8–9%             Up to 20%

An IE5 motor saves thousands of kWh compared to an IE3 motor over 5 years, quickly offsetting its investment cost.

Digital Control and VFD Compatibility

  • Fully compatible with inverter (VFD) systems.

  • Enables speed control, energy optimization, and motor protection.

  • IoT-based monitoring allows remote tracking of temperature, vibration, and current.

“Smart motor, smart operation.”
The DRG MOTOR IE5 series integrates seamlessly into Industry 4.0-ready smart factories.


Technical Specifications and Testing Processes

FeatureValue / Description
Power Range0.55 – 355 kW
Efficiency ClassIE5 – Ultra Premium Efficiency
Voltage230/400V – 400/690V
Frequency50 / 60 Hz
BodyCast iron (GG20)
InsulationF Class (155°C)
ProtectionIP55
Noise52–70 dB(A)
Vibration≤1.5 mm/s
CertificationsCE – ISO – EMC – LVD – EAC

Production and Quality Tests:

  • Winding resistance and insulation test (500V Megger)

  • Rotor balance test (G 2.5 standard)

  • Noise test (EN 60034-9)

  • Vibration test (ISO 10816)

  • Load torque and current test

  • Thermal test (2 hours continuous operation)

  • Inverter compatibility check

  • Final inspection (thermal camera and bearing temperature measurement)

Each IE5 motor is tested at nominal load for 2 hours before delivery, and performance data is archived.


Why Choose DRG MOTOR IE5 Series?

  1. Maximum Energy Efficiency
    IE5 motors produce maximum power with minimum energy consumption.
    Up to 20% energy savings over the long term.

  2. Silent and Balanced Operation
    Ultra-quiet operation (<70 dB(A)) and low vibration (≤1.5 mm/s).
    Balance standard: G 2.5.

  3. Long-Lasting Construction
    Bearing life: 40,000 hours
    Body life: over 20 years
    Vacuum-impregnated windings resist moisture and heat.

  4. Industry 4.0 Ready Design
    Smart control, sensor integration, and inverter compatibility for digital production systems.

  5. DRG MOTOR Assurance

  • Power range: 0.55–355 kW

  • Stock-ready options

  • 2-year warranty

  • Nationwide service and spare parts support


Conclusion: The Pinnacle of Efficiency – DRG MOTOR IE5 Series

The DRG MOTOR IE5 Series
introduces a new era in industrial systems with energy efficiency, silence, torque stability, and long-lasting engineering.

“Less energy, more performance.”

DRG MOTOR – Ultra Premium Efficiency. Super Silent. Future Ready.