HPEVS AC-12 Brushless AC Motor Kit - 72V with Curtis 1238-6501 Controller

£3,044.00 GBP
Tax included. Shipping calculated at checkout.



The AC-12 is an AC motor that operates at 48-80V. It can draw up to 550A producing up to 37 HP (28 kW) and 86 ft-lbs (117 Nm) of torque. This kit works very well in small, lightweight applications such as small boats, dirt bikes, ATVs, golf carts, kei cars and microcars. Features include regenerative braking as well as an idle function. At 72 volts, it makes a safer low voltage system that will give you lots of reliable EV miles.

Its right for you if:

You want to convert your dirt bike or ATV to electric for an affordable price yet still being able to make decent power. Give your old toys a second life with this Curtis Electric Motor and Controller kit.

The tech you get:

  • HPEVS AC12 Motor
  • Curtis 1238-6501 Controller
  • 35 Pin Connector and Wire Harness
  • 12 Volt HV Relay
  • Curtis 840 Dash Gauge
  • SPST Menu Button
  • SPST Mode Switch

The final word:

A practical and safe small project power plant.


  • Motor Face: C-Face
  • Motor Diameter: 7.132 Inches
  • Motor Case Length: 10.988 Inches
  • Motor Shaft to Shaft Length: N/A with Back Plate
  • Motor Shaft to End Length: 13.238 Inches
  • Motor Type: AC Induction Brushless
  • Weight: 50 lbs (22.7 Kg)
  • Max Voltage Input: 80
  • Terminal Stud Size: 5/16 Inch
  • Integrated Sensors: Encoder and Temperature
  • Rated Torque: 86 Lb Ft
  • Rated Power: 37 HP
  • Max RPM: 10,000
  • RPM Sensor: Yes
  • Drive End Shaft: 7/8 Inch with 3/16 Inch Keyway
  • Accessory End Shaft: Not Available
  • Max Efficiency: 0.92
  • Thermal Cooling: Internal Fan
  • Max Temperature: 180 Degrees Celsius (356 Degrees Fahrenheit)
  • Matching Controller Included In Price: Curtis Controller 1238e-7621

Data Sheet - Click Here