Wound field DC (WFDC) motors typically have higher torque and speed capabilities than their permanent magnet counterparts. Nidec Drive Systems offers a range of robust, proven WFDC motors with a variety of available enclosures, mounting types and other features. Available WFDC motor types include:
Series wound
- Armature and field are wound in a series
- Provides high starting torque
- Ideal for applications where a simple contactor or very simple speed control is used
Separately excited (sepex)
- Armature and field are wound separately
- Provides greater control over rotor speed
- Best for traction applications, requires a more advanced controller
Compound wound
- Utilizes a combination of series and parallel wound field coils
- Provides optimized performance within a certain load range
- Used most often in pumping applications
Wound field DC Motors
| Motor Diameter | Voltage Range | Power Level | RPM Range | Applications | Industries |
| 114 mm | 12-24 | 2.0 HP 1.5 kW | 0-5000 | Pumps, Starter/Generator, Traction | AWP, MH, Floorcare, Golf Cart |
| 140 mm | 12-48 | 4.0 HP 3.0 kW | 0-5000 | Pumps, Traction | AWP, MH |
| 170 mm | 12-96 | 9.0 HP 7.0 kW | 0-5000 | Pumps, Traction | AWP, MH |
| 203 mm | 24-144 | 20.0 HP 15.0 kW | 0-5000 | Pumps | MH |
| 231 mm | 24-144 | 26.0 HP 19.0 kW | 0-5000 | Pumps | MH |
| 280 mm | 12-48 | 25.0 HP 19.0 kW | 0-4000 | Pumps | MH |
Features
| Available Enclosures | Both Open and Totally Enclosed available, from IP20 to IP54 |
| Mounting types | Foot, face mounting, a wide variety of hydraulic pump mounting standards. Also available at 3/4 motors for integrated applications |
| RPM Range | 0 to 5000 RPM |
| Rotation |
Reversible or single rotation |
| Insulation | Class H insulation system |
| Other | Sealed bearings with high temperature grease Heavy duty commutator construction Heavy duty brass brush boxes Stainless steel brush springs High temperature brush shunt connection Easy brush replacement Available with brake systems |
