RP23 BLDC Motor
RapidPower™ Series

Summary Details

Size: NEMA 23
Peak Torque: to 190 oz-in or 134 Ncm

Great performance at an affordable price
The ElectroCraft RapidPower™ RP23 is a compact, high-performance and high-speed brushless motor with ball-bearing construction, dynamically balanced rotors, and low audible and magnetic noise. It is compatible with three-phase brushless DC motor drives.

Additional Product Details

RP23 Outline Drawing

Model Max Length A B C D E F G H I J
Front Shaft
Diameter		 Front Shaft
Length		 Pilot
Diameter		 Pilot
Length		 Mount Hole
Pattern		 Mount Hole
Spacing		 Flange
External
Dimension 		 Rear Shaft
Diameter		 Rear Shaft
Length		 Differential
Encoder
Length
RP23-26 1.6 in 0.25 in 0.81 in 1.5 in 0.06 in 0.205 in
thru holes 		 1.86 in 2.25 in 0.25 in 0.45 in 0.55 in
RP23-34 2.0 in
RP23-54 3.0 in
RP23-73 4.0 in
RP23M-18 41 mm 8.0 mm 25 mm 36 mm 1.5 mm 4.5 mm
thru holes		 46 mm 57 mm 6.35 mm 12.3 mm 14 mm
RP23M-24 51 mm
RP23M-38 76 mm
RP23M-52 102 mm
Technical Drawings

RP23 Speed / Torque Curves

rp23 rp23 rp23 rp23

RP23 Mechanical / Winding Data

RP23 Stack Size and Winding Models
Specifications RP23-
26V12		 RP23-
26V24		 RP23-
26V48		 RP23-
26V90		 RP23-
34V12		 RP23-
34V24		 RP23-
34V48		 RP23-
34V160		 RP23-
54V12		 RP23-
54V24		 RP23-
54V48		 RP23-
54V160		 RP23-
73V24		 RP23-
73V48		 RP23-
73V90		 RP23-
73V160
RP23M-
18V12		 RP23M-
18V24		 RP23M-
18V48		 RP23M-
18V90		 RP23M-
24V12		 RP23M-
24V24		 RP23M-
24V48		 RP23M-
24V160		 RP23M-
38V12		 RP23M-
38V24		 RP23M-
38V48		 RP23M-
38V160		 RP23M-
52V24		 RP23M-
52V48		 RP23M-
52V90		 RP23M-
52V160
Design Voltage (VDC) 12 24 48 90 12 24 48 160 12 24 48 160 24 48 90 160
No load speed (RPM) 3,500 5,700 7,000 8,000 4,000 4,350 5,000 7,000 2,500 3,700 4,950 6,000 3,800 4,300 5,000 5,700
Peak Torque (oz-in) 40 50 50 50 60 80 80 80 100 150 150 150 190 190 190 190
Peak Torque (Ncm) 28 35 35 35 42 57 57 57 71 106 106 106 134 134 134 134
Peak Current (Amps) 11.0 8.8 6.5 3.5 14.5 10.0 6.2 2.6 15.2 18.5 12.4 4.5 22.3 12.6 8.5 5.0
Continuous Stall Torque (oz-in) 26 34 54 73
Continuous Stall Torque (Ncm) 18 24 38 52
Continuous Stall Current (Amps) 5.3 4.6 2.6 1.6 8.6 4.6 2.5 1.1 8.7 5.7 4.2 1.6 8.3 4.7 3.1 1.9
Continuous Rated Torque (oz-in) 18.0 16.0 12.0 8.0 24.0 27.0 28.0 22.0 40.0 38.0 38.0 32.0 51.0 48.0 51.0 41.0
Continuous Rated Torque (Ncm) 12.7 11.3 8.5 5.7 16.9 19.1 19.8 15.5 28.2 26.8 26.8 22.6 36.0 33.9 36.0 29.0
Continuous Rated Current (Amps) 3.9 2.8 1.3 0.5 5.9 3.6 2.2 0.8 6.1 4.3 3.0 0.9 6.5 3.2 2.2 1.1
Continuous Rated Speed (RPM) 1,800 3,700 5,900 7,300 2,300 2,800 3,450 5,500 1,500 2,700 4,150 5,100 2,800 3,600 4,200 4,900
Voltage Constant (V / kRPM) 3.4 4.2 6.7 11.3 3.0 5.5 9.6 22.9 4.9 6.5 9.8 26.7 6.3 11.2 18.0 28.1
Torque Constant (oz-in / Amp) 4.6 5.7 9.1 15.2 4.1 7.5 13.0 30.9 6.6 8.8 13.3 36.1 8.5 15.1 24.6 38.0
Torque Constant (Ncm / Amp) 3.3 4.0 6.4 10.7 2.9 5.3 9.2 21.8 4.7 6.2 9.4 25.5 6.0 10.7 17.4 26.8
Resistance (Ohms) 0.9 1.5 3.6 9.2 0.4 1.3 3.8 21.0 0.4 0.9 1.5 12.5 0.4 1.3 3.3 7.9
Inductance (mH) 1.1 1.8 4.6 11.3 0.5 1.8 4.5 25.0 0.6 1.1 2.5 18.0 0.7 2.0 6.1 14.5
Motor Constant (oz-in / √ Watt) 4.5 7.2 6.6 7.2 6.8 7.2 9.2 10.6 10.5 13.5 13.5 12.7 12.7
Motor Constant (Ncm / √ Watt) 3.2 5.1 4.7 5.1 4.8 5.1 6.5 7.5 7.4 9.5 9.5 8.9 8.9
Electrical Constant (msec) 1.2 1.3 1.5 1.6
Mechanical Constant (msec) 9.1 9.2 6.2 5.4
Rotor inertia (oz-in-sec²) 0.0015 0.0029 0.0047 0.0071
Rotor inertia (g-cm²) 107.3 202.0 331.9 504.9
Thermal Resistance (C / Watt) 3.2 3.0 2.8 2.7
Weight (oz) 13.5 21.0 31.0 47.0
Weight (Kg) 0.4 0.6 0.9 1.3
Length (inch) 1.6 2.0 3.0 4.0
Length (mm) 40.6 50.8 76.2 101.6
Number of Poles 4 4 4 4

RP23 Connection

connection diagram
connection diagram

RP23 CAD

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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:

Select the region where the product would be delivered to.

The Americas

Part Number Description Typical Lead Time
RP23-26V24-100-D NEMA 23 Brushless DC Motor, 24VDC, 5700RPM no-load speed, 50 oz-in peak torque, 16 oz-in continuous at 3700RPM, 1000 line differential commutating encoder 2 days
RP23-26V24-100-X NEMA 23 Brushless DC Motor, 24VDC, 5700RPM no-load speed, 50 oz-in peak torque, 16 oz-in continuous at 3700RPM, hall sensors, no encoder 2 days
RP23-34V24-100-D NEMA 23 Brushless DC Motor, 24VDC, 4350RPM no-load speed, 80 oz-in peak torque, 27 oz-in continuous at 2800RPM, 1000 line differential commutating encoder 2 days
RP23-34V24-100-X NEMA 23 Brushless DC Motor, 24VDC, 4350RPM no-load speed, 80 oz-in peak torque, 27 oz-in continuous at 2800RPM, hall sensors, no encoder 2 days
RP23-54V24-100-D NEMA 23 Brushless DC Motor, 24VDC, 3700RPM no-load speed, 150 oz-in peak torque, 38 oz-in continuous at 2700RPM, 1000 line differential commutating encoder 2 days
RP23-54V24-100-X NEMA 23 Brushless DC Motor, 24VDC, 3700RPM no-load speed, 150 oz-in peak torque, 38 oz-in continuous at 2700RPM, hall sensors, no encoder 2 days
RP23-73V24-100-D NEMA 23 Brushless DC Motor, 24VDC, 3800RPM no-load speed, 190 oz-in peak torque, 51 oz-in continuous at 2800RPM, 1000 line differential commutating encoder 2 days
RP23-73V24-100-X NEMA 23 Brushless DC Motor, 24VDC, 3800RPM no-load speed, 190 oz-in peak torque, 51 oz-in continuous at 2800RPM, hall sensors, no encoder 2 days

Europe, the Middle East and Africa

Part Number Description Typical Lead Time
No products available

Asia

Part Number Description Typical Lead Time
RP23-26V24-100-D NEMA 23 Brushless DC Motor, 24VDC, 5700RPM no-load speed, 50 oz-in peak torque, 16 oz-in continuous at 3700RPM, 1000 line differential commutating encoder 2 days
RP23-26V24-100-X NEMA 23 Brushless DC Motor, 24VDC, 5700RPM no-load speed, 50 oz-in peak torque, 16 oz-in continuous at 3700RPM, hall sensors, no encoder 2 days
RP23-34V24-100-D NEMA 23 Brushless DC Motor, 24VDC, 4350RPM no-load speed, 80 oz-in peak torque, 27 oz-in continuous at 2800RPM, 1000 line differential commutating encoder 2 days
RP23-34V24-100-X NEMA 23 Brushless DC Motor, 24VDC, 4350RPM no-load speed, 80 oz-in peak torque, 27 oz-in continuous at 2800RPM, hall sensors, no encoder 2 days
RP23-54V24-100-D NEMA 23 Brushless DC Motor, 24VDC, 3700RPM no-load speed, 150 oz-in peak torque, 38 oz-in continuous at 2700RPM, 1000 line differential commutating encoder 2 days
RP23-54V24-100-X NEMA 23 Brushless DC Motor, 24VDC, 3700RPM no-load speed, 150 oz-in peak torque, 38 oz-in continuous at 2700RPM, hall sensors, no encoder 2 days
RP23-73V24-100-D NEMA 23 Brushless DC Motor, 24VDC, 3800RPM no-load speed, 190 oz-in peak torque, 51 oz-in continuous at 2800RPM, 1000 line differential commutating encoder 2 days
RP23-73V24-100-X NEMA 23 Brushless DC Motor, 24VDC, 3800RPM no-load speed, 190 oz-in peak torque, 51 oz-in continuous at 2800RPM, hall sensors, no encoder 2 days