
DPP720 Brush Motor
DirectPower™ Plus Series
Series
DPP720
Size
4.00-inch or 102mm
Peak Torque
to 2880 oz-in or 2034 Ncm
Product Details
Overview & Features
High-Torque. Long life.
Our ElectroCraft DirectPower™ Plus 720 Series
features a rugged, heavy-gauge steel housing construction for
long-life and durability. This high-efficiency motor offers
smooth and highly accurate performance across the operating
speed range. It includes dynamically balanced armatures, sealed
construction for reliability in most environments, sealed ball
bearings, and replaceable brushes.

Specifications & Winding Data
| DPP720 Stack/Torque Sizes | |||
|---|---|---|---|
| Imperial Models | DPP726T-355 | DPP727T-455 | DPP728T-570 |
| Metric Models | DPP726MT-251 | DPP727MT-321 | DPP728MT-403 |
| Continuous Stall Torque (oz-in) | 355 | 455 | 570 |
| Continuous Stall Torque (Ncm) | 250.67 | 321.28 | 402.48 |
| Peak Torque (oz-in) | 1440 | 2080 | 2880 |
| Peak Torque (Ncm) | 1016.78 | 1468.69 | 2033.57 |
| Rotor Inertia (oz-in-sec2) | 0.1000 | 0.1100 | 0.1750 |
| Rotor Inertia (g-cm2) | 7062.0 | 7768.2 | 12358.5 |
| Thermal Resistance (C / Watts) | 1.4 | 1.3 | 1.1 |
| Weight (lbs) | 13.0 | 15.0 | 21.0 |
| Weight (Kg) | 5.9 | 6.8 | 9.53 |
| Number of Poles | 4 | 4 | 4 |
| DPP720 Winding Options | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Imperial Models | 355V60 | 355V90 | 355V120 | 455V60 | 455V90 | 455V120 | 570V60 | 570V90 | 570V120 |
| Metric Models | 251V60 | 251V90 | 251V120 | 321V60 | 321V90 | 321V120 | 403V60 | 403V90 | 403V120 |
| Design Voltage (VDC) | 60 | 90 | 120 | 60 | 90 | 120 | 60 | 90 | 120 |
| Continuous Current (Amps) | 12 | 8 | 6 | 13 | 8 | 6 | 15 | 11 | 8 |
| Peak Current (Amps) | 42 | 29 | 22 | 52 | 35 | 26 | 66 | 45 | 33 |
| Voltage Constant ±10% (VDC/kRPM) | 25.2 | 36.3 | 49.0 | 29.4 | 44.1 | 58.8 | 32.4 | 47.2 | 64.9 |
| Torque Constant ±10% (oz-in / Amp) | 34.2 | 49.2 | 66.2 | 39.8 | 59.6 | 79.5 | 43.8 | 63.8 | 87.8 |
| Torque Constant ±10% (Ncm / Amp) | 24.151 | 34.743 | 46.747 | 28.105 | 42.087 | 56.139 | 30.930 | 45.053 | 62.000 |
| Resistance ±10% (Ohms) | 0.72 | 1.31 | 2.04 | 0.64 | 1.21 | 1.89 | 0.54 | 0.9 | 1.55 |
| Inductance ±10% (mH) | 1.5 | 3.2 | 5.8 | 1.4 | 3.1 | 5.5 | 1.1 | 2.3 | 4.3 |
| Motor Constant (oz-in / √ Watt) | 40.32 | 42.99 | 46.39 | 49.82 | 54.25 | 57.78 | 59.74 | 67.21 | 70.58 |
| Motor Constant (Nm / √ Watt) | 4.56 | 4.86 | 5.24 | 5.63 | 6.13 | 6.53 | 6.75 | 7.59 | 7.97 |
| Electrical Constant (msec) | 2.14 | 2.43 | 2.83 | 2.16 | 2.57 | 2.91 | 1.99 | 2.52 | 2.78 |
| Mechanical Constant (msec) | 8.71 | 7.66 | 6.58 | 6.39 | 5.39 | 4.75 | 6.98 | 5.52 | 5.00 |
Speed / Torque Curves
Dimensional Drawing
| Model | MAX Length Encoder |
MAX Length No Encoder |
A | B | C | D | E | F | G | H | I | J |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Front Shaft Diameter | Front Shaft Length | Pilot Diameter | Pilot Length (Ref) |
Mounting Hole Pattern (Ref) |
Mount Hole Spacing (Ref) |
Flange External Dimension (Ref) |
Rear Shaft Diameter | Rear Shaft Length | Encoder Length (Ref) |
|||
| DPP726T | 10.67 in | 9.41 in | 0.6250 in 0.6245 in |
2.000 in ±0.03 |
3.000 in 2.997 in |
0.150 in | (4) 0.390 DIA THRU EQ SP on 4.817 D.B.C. |
3.406 in | 4.00 in SQ | N/A | N/A | N/A |
| DPP727T | 11.42 in | 10.16 in | ||||||||||
| DPP728T | 12.91 in | 11.65 in | ||||||||||
| DPP726MT | 271 mm | 239 mm | 16.00 mm 15.99 mm |
40 mm ±0.762 |
95.00 mm 94.92 mm |
3.8 mm | (4) 10 mm DIA THRU EQ SP on 122.34 mm D.B.C. |
86.51 mm | 102 mm SQ | N/A | N/A | N/A |
| DPP727MT | 290 mm | 258 mm | ||||||||||
| DPP728MT | 328 mm | 296 mm |

Drive Compatibility
Please contact ElectroCraft if the drive you are searching for is not included in the charts below.
Please contact us for drive compatibility information on this motor series.
Documents & Downloads
| Download | Description |
|---|---|
| DPP720 Data Sheet (US) | Download Data Sheet (PDF) |