PMAC-G4845 48V 450A ATV / Golf Car / NEV Motor Drive System

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Custom built: Allow 4 to 6 weeks

Quick Overview

IMPORTANT: This is a made-to-order drive system that may require an additional 2-6 weeks for production. If you need it fast, please inquire about current production times prior to ordering. Please also note that some components within the drive system may be different than what is pictured on this webpage as the item undergoes periodic revision.

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Hot rod your ATV, Golf Car or NEV (Neighborhood Electric Vehicle) with the latest brushless PMAC pre-wired and tested drive system from This new, lightweight, high efficiency motor mounts right up to your Schafer or Dana/Spicer differential. 

Are you looking for a cost-effective drive system which will allow your GEM Car, Ford Th!nk, or ZENN Car to climb hills faster? Are you thinking of converting your golf car to a powerful, high speed, off road hunting buggy? Look no further, here's your solution!

Power Output: Approximately 20 peak horsepower at 48V 450A

Designed and assembled in the USA by Electric Motorsport, Inc.


- Variable Throttle for smooth speed control
- Brushless Motor design makes brush maintenance a thing of the past.
- Easy forward and reverse switching with a flip of a switch
- Motor and Controller support Regen which means this system can recapture energy to help recharge the battery pack.
- Pre-assembled and tested releiving you of any guesswork.

Kit Includes

Motenergy brushless ME1202 motor
- Gen4 controller
- Potentiometer box throttle or Magura Twist-Grip Throttle
- Forward/Reverse switch
- Ignition key
- Contactor
- Emergency Stop Switch
- Fuse
- Wiring harness

Motor Features

Quiet Operation 
Extremely durable
High 84% Efficiency 
Smooth acceleration 
Light weight (only 36.3 lbs.) 
Low torque ripple at low speed
Sine/cosine speed sensor 
Air cooled (cast aluminum heat sink)

Motor Specifications

Designed for long life, no brush maintenance. The motor is 92% efficient at voltages between 24 to 96 VDC. Continuous current of 125 amps AC (180 Amps DC into the motor control). This is a 3-phase, Y-connected permanent magnet synchronous motor with an axial air gap and sine/cosine speed sensor. It has two stators with a rotor in the center.

- Mounting Face: Mounts to Dana/Spicer differential
- 4 pole motor (8 magnets). 
- 20 turns per phase. 
- Maximum recommended rotor speed: 6500 RPM at 72V unloaded
- Voltage: 0 to 72 VDC input to the control 
- Torque constant of 0.12 Nm per Amp
- The inductance phase to phase is 0.05 milli-Henry
- Armature Inertia: 45 kg cm² 
- Current: 125 Amps AC continuous (180 Amps DC into the motor control)
- Peak current: 420 Amps AC for 1 minute (600 Amps DC into the motor control) 
- Weight: 36.3 pounds
- Peak Stall Torque: 60 ft lb.
- Cooling: Air cooled (cast aluminum heat sink)
- Includes temperature sensor

Controller Specifications

The Gen4-series represent the absolute latest design concept for compact and reliable AC Controllers. They feature the smallest footprint in the industry for their power capability. The high efficiency of these controller makes it possible to integrate them into very tight spaces without sacrificing performance. The design has been optimized for the lowest possible cost while maintaining superior reliability in the most demanding applications.

The Gen4 controllers are designed to control either AC Asynchronous motors or PMAC Synchronous motors. This feature allows users to select optimal motor solutions for any application. Both UVW and encoder AB inputs are provided for maximum flexibility. 

Sealed IP66 enclosure
Integrated logic circuit (I/O)
Advanced flux vector control
Autocheck - system diagnostics
Sensorless control (depending on application)
CANopen product

Nominal Voltage 36 - 48 VDC
Operating Voltage 19.3 - 69.6 VDC
Cont. Current (60m) 180 A
Current (120s) 450 A
Boost (10s) 540 A

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Please note: Due to the high RPM of the motor, we recommend using a gear reduction system rather than direct-drive for marine applications. This will improve efficiency, provide proper torque and cooling, and prevent cavitation. Typical reduction is around 3:1, but will depend on the required prop RPM needed to reach hull speed. Proper reduction will enable the motor to spin your prop at the hull speed RPM of your prop when it is spinning at its max RPM. *Appropriate prop required based on motor rpm and the boats hull speed.


Stock Status Custom built: Allow 4 to 6 weeks
Country of Manufacture United States

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For assistance with selecting the right components for your project, please use the appropriate form:

LVW Land Vehicle Worksheet
MCW Marine Craft Worksheet