
DPP680 3.25in Brush Motor
DirectPower™ Plus Series
Product Details
Overview & Features
High-Torque. Long life.
Our ElectroCraft DirectPowerTM Plus 680 Series features
a rugged, heavy-gauge steel housing construction for long-life and durability.
This high-efficiency motor includes dynamically balanced armatures, sealed ball
bearings, and replaceable brushes.

Specifications & Winding Data
| Array Stack/Torque Sizes | ||||
|---|---|---|---|---|
| Stack Size Models | DPP681-90 | DPP683-120 | DPP685-185 | DPP689-200 |
| Continuous Stall Torque (oz-in) | 90 | 120 | 185 | 200 |
| Continuous Stall Torque (Ncm) | 63.55 | 84.73 | 130.63 | 141.22 |
| Peak Torque (oz-in) | 450 | 680 | 950 | 1100 |
| Peak Torque (Ncm) | 317.75 | 480.15 | 670.80 | 776.71 |
| Rotor Inertia (oz-in-sec2) | 0.0230 | 0.0320 | 0.0550 | 0.0680 |
| Rotor Inertia (g-cm2) | 1624.3 | 2259.8 | 3884.1 | 4802.2 |
| Thermal Resistance (C / Watts) | 2.8 | 2.8 | 2.0 | 1.6 |
| Weight (lb) | 6.0 | 6.5 | 7.0 | 8.0 |
| Weight (Kg) | 2.27 | 2.95 | 3.18 | 3.63 |
| Length (inches) | 5.2 | 5.8 | 6.9 | 7.7 |
| Length (cm) | 13.2 | 14.7 | 17.5 | 19.6 |
| Number of Poles | 2 | 2 | 2 | 2 |
| Array Winding Options | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Winding Models | 90V24 | 90V48 | 90V60 | 120V24 | 120V48 | 120V60 | 185V24 | 185V48 | 185V60 | 200V24 | 200V48 | 200V60 |
| Design Voltage (VDC) | 24 | 48 | 60 | 24 | 48 | 60 | 24 | 48 | 60 | 24 | 48 | 60 |
| Continuous Current (Amps) | 13 | 7 | 6 | 13 | 9 | 8 | 15 | 14 | 11 | 15 | 15 | 14 |
| Peak Current (Amps) | 64 | 30 | 25 | 89 | 45 | 37 | 90 | 64 | 54 | 90 | 74 | 59 |
| Voltage Constant ±10% (VDC/kRPM) | 5.2 | 11.1 | 13.4 | 5.6 | 11.2 | 13.6 | 5.4 | 10.8 | 13.0 | 5.5 | 11.0 | 13.8 |
| Torque Constant ±10% (oz-in / Amp) | 7.1 | 14.9 | 18.1 | 7.6 | 15.2 | 18.4 | 7.3 | 14.6 | 17.5 | 7.4 | 14.9 | 18.6 |
| Torque Constant ±10% (Ncm / Amp) | 5.014 | 10.522 | 12.781 | 5.367 | 10.734 | 12.993 | 5.155 | 10.310 | 12.358 | 5.226 | 10.522 | 13.134 |
| Resistance ±10% (Ohms) | 0.2 | 0.7 | 1.0 | 0.2 | 0.5 | 0.6 | 0.2 | 0.3 | 0.5 | 1.6 | 0.3 | 0.4 |
| Inductance ±10% (mH) | 0.5 | 2.1 | 3.0 | 0.5 | 1.8 | 2.8 | 0.0 | 1.5 | 2.1 | 0.3 | 1.2 | 1.9 |
| Motor Constant (oz-in / √ Watt) | 14.63 | 18.28 | 18.36 | 17.13 | 21.82 | 23.3 | 17.67 | 23.56 | 26.38 | 18.83 | 28.13 | 27.45 |
| Motor Constant (Nm / √ Watt) | 1.65 | 2.07 | 2.07 | 1.94 | 2.47 | 2.63 | 2.00 | 2.66 | 2.98 | 2.13 | 3.18 | 3.10 |
| Electrical Constant (msec) | 1.97 | 3.08 | 3.11 | 2.37 | 3.84 | 4.37 | 2.15 | 3.81 | 4.78 | 1.88 | 4.21 | 4.01 |
| Mechanical Constant (msec) | 15.22 | 9.74 | 9.66 | 15.44 | 9.51 | 8.35 | 24.93 | 14.03 | 11.19 | 27.17 | 12.17 | 12.78 |
Speed / Torque Curves
Dimensional Drawing
| Model | MAX Length |
MAX Length (with tachometer) |
A | B | C | D | E | F | G | H | I | J |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Front Shaft Diameter | Front Shaft Length | Pilot Diameter | Pilot Length | Mount Hole Callout (Ref) |
Mount Hole Spacing (Ref) |
Flange External Dimension (Ref) |
Rear Shaft Diameter | Rear Shaft Length | Encoder Length (max) |
|||
| DPP681 | 5.10 in | 7.81 in | 0.5000 in 0.4995 in |
1.000 in ±0.03 |
1.574 in 1.572 in |
0.062 in | (4) 10-32 UNC-28 0.50 in Deep Min EQ SP on 2.312 in D.B.C. |
1.635 in | 3.25 in OD | 0.3750 in 0.3747 in (motor only) |
0.43 in ±0.030 |
0.43 in |
| DPP683 | 5.70 in | 8.41 in | ||||||||||
| DPP685 | 6.82 in | 9.53 in | 0.2497 in 0.2494 in (motor only) |
|||||||||
| DPP689 | 7.62 in | 10.33 in | ||||||||||
| DPP681M | 132 mm | 199 mm | 12.00 mm 11.99 mm |
30 mm ±0.762 |
N/A | N/A | (4) M6 × 1-6H 10 mm Deep Min EQ SP on 63.5 mm D.B.C. |
44.9 mm | 78 mm OD | 8.00 mm 7.99 mm (motor only) |
10.9 mm ±0.762 |
10.9 mm |
| DPP683M | 147 mm | 214 mm | ||||||||||
| DPP685M | 175 mm | 242 mm | 6.00 mm 5.99 mm (motor only) |
|||||||||
| DPP689M | 196 mm | 263 mm |

Drive Compatibility
Please contact ElectroCraft if the drive you are searching for is not included in the charts below.
| Motor P/N | Cont Stall Current (ARMS) |
Peak Current (ARMS) |
Voltage | Drive Model | ||||
|---|---|---|---|---|---|---|---|---|
| Imperial | Metric | PRO (-CAN) | PRO (-CAT) | CPP-Universal | CPP-EZ | |||
| DPP681(T)-90V48 | DPP681M(T)-64V48 | 7.0 | 30.0 | 48 | PRO-A20V80A | PRO-A20V80A | CPP-A24V80A | |
| DPP681(T)-90V60 | DPP681M(T)-64V60 | 6.0 | 25.0 | 60 | PRO-A20V80A | PRO-A20V80A | CPP-A24V80A | |
Documents & Downloads
| Download | Description |
|---|---|
| DPP680 Data Sheet (US) | Download Data Sheet (PDF) |
ElectroCraft Rapid Delivery Program
Some versions of this product are available via ElectroCraft's Rapid Delivery Program. Lead times for these products are given in working days and stated below. Please note, these lead times may be exceeded during holiday periods or due to unforeseen circumstances. Always contact your local ElectroCraft representative for confirmation of availability.
Rapid delivery products are stocked in locations all over the World. If the product you require is not stocked in your region, you may request accelerated delivery from other areas. Please consult your local representative for more information.
Customers are responsible for all freight charges.
Rapid Delivery to:
The Americas - View Cart
| Part Number | Description | Add to Cart |
|---|---|---|
| DPP681-90V24-120-X | 3.25" frame PMDC Brush motor, 24VDC winding, 5300RPM no-load speed, 450 oz-in peak torque, 90 oz-in continuous stall torque | Contact Sales |
| DPP683-120V24-120-X | 3.25" frame PMDC Brush motor, 24VDC winding, 5300RPM no-load speed, 680 oz-in peak torque, 120 oz-in continuous stall torque | Contact Sales |
| DPP685-185V24-120-X | 3.25" frame PMDC Brush motor, 24VDC winding, 5300RPM no-load speed, 950 oz-in peak torque, 185 oz-in continuous stall torque | Buy Now |
| DPP689-200V24-120-X | 3.25" frame PMDC Brush motor, 24VDC winding, 5300RPM no-load speed, 1100 oz-in peak torque, 200 oz-in continuous stall torque | Buy Now |