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DRG General Purpose Industrial Electric Motors
DRG general purpose industrial electric motors are versatile motors delivering reliable power in every application – from pumps and compressors to fans and conveyors. They cover 0.55 – 355 kW in IE3 / IE4 / IE5 classes, with a cast iron body and 100% copper winding, available from stock.
General Technical Specifications
| Feature | Value / Description |
|---|---|
| Power range | 0.55 – 355 kW |
| Efficiency class | IE3 / IE4 / IE5 |
| Voltage | 400 / 690 V |
| Frequency | 50 / 60 Hz |
| Speed options | 750 / 1000 / 1500 / 3000 rpm |
| Frame material | Cast iron (GG20) |
| Winding | 100% pure electrolytic copper (vacuum impregnated) |
| Bearings | SKF / C&U |
| Insulation | Class F (155 °C) |
| Protection | IP55 |
| Mounting types | B3, B5, B35, B14 |
Construction and Materials
- Body: cast iron (GG20) – vibration-damping, robust
- Windings: 100% pure electrolytic copper, vacuum impregnated
- Rotor: squirrel-cage – high balance precision
- Bearings: SKF / C&U – high-temperature grease
- Fan: aerodynamic plastic – quiet, effective cooling
- Paint: electrostatic powder coat (RAL 7032 / 6028 / 5012)
Efficiency Classes (IE3 / IE4 / IE5)
| Class | Definition | Energy saving | Description |
|---|---|---|---|
| IE3 | Premium Efficiency | 8–10% | Mandatory efficiency level in Turkey |
| IE4 | Super Premium | 3–5% | Lower losses, less heating |
| IE5 | Ultra Premium | 8–9% | Maximum efficiency, minimum energy |
All motors comply with the Ecodesign regulation (EU 2019/1781), offering low operating cost, long-life insulation and reduced maintenance.
Noise, Vibration and Thermal Performance
Noise levels (dB(A)):
| Power range | Speed | Noise level | Test standard |
|---|---|---|---|
| 0.55 – 7.5 kW | 1500 rpm | 58 – 62 dB(A) | EN 60034-9 |
| 11 – 55 kW | 1500 rpm | 63 – 68 dB(A) | EN 60034-9 |
| 75 – 200 kW | 1500 rpm | 68 – 72 dB(A) | EN 60034-9 |
| 250 – 355 kW | 1500 rpm | 72 – 75 dB(A) | EN 60034-9 |
Vibration levels (RMS velocity – mm/s):
| Test standard | Value | Description |
|---|---|---|
| ISO 10816 | ≤ 1.8 mm/s | Standard operation |
| Low-vibration version | ≤ 1.2 mm/s | For precision systems |
Thermal: max. winding temperature 110 °C, max. bearing temperature 80 °C, temperature rise < 75 K, optional PTC / PT100 thermistor.
Quality Tests (Post-Production)
- Winding resistance test
- Insulation resistance test (500 V Megger)
- Rotor balance test (G 2.5 standard)
- Vibration measurement (ISO 10816)
- Noise test (EN 60034-9)
- Load torque and current test
- Thermal camera temperature analysis
- Continuous run test (S1 – 2 hours)
Certificates: CE – LVD – EMC, ISO 9001:2015, EAC, Ecodesign (EU 2019/1781).
Applications
- Pump systems
- Fan and ventilation equipment
- Compressors
- Geared drive systems
- Conveyor belt lines
- Agitators and mixers
- Hydraulic systems
- Stone crushing and screening plants
- Agricultural machinery and presses
Why DRG General Purpose Series?
- High efficiency (IE3 / IE4 / IE5) – energy savings
- Quiet operation – < 70 dB(A)
- Low vibration – long bearing life, stable torque
- Cast iron body – resistant to impact and vibration
- IP55 – full protection against dust and moisture
- Long-life winding and bearings – over 40,000 hours
- IEC standard dimensions – easy installation, compact
- 0.55–355 kW from stock, 2-year warranty
Delivery, Warranty and After-Sales
Standard ratings ship from stock, with short lead times for special windings and high power. All products carry a 2-year warranty, backed by nationwide service and spare-part support.
Request a Quote
Get a price for the power, speed, frame and efficiency class that fit your application:
Quick quote on WhatsApp | +90 542 666 11 11 | Contact & Quote Form
For details on industrial / general purpose motors, see our industrial general purpose motors content.