PMAC-G8018 72/80V 180A Motor Drive System

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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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This Electric Motorsport PMAC kit will convert your gas or diesel engine to clean, silent electric propulsion! This kit is designed for motorcycles and marine applications, but is also suitable for many other applications. Electric drive systems of this power usually cost $4,000 and up, but this *pre-assembled kit makes it affordable at about a third of the cost.


  • 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. So under a heavy sail this system can be generating power off the dragging prop*.
  • *Pre-assembled and tested releiving you of any guesswork.

Kit Includes

  • Motenergy Brushless PMAC motor
  • Gen4 Controller
  • Throttle
  • Forward/Reverse switch
  • Ignition key
  • Contactor
  • Fuse
  • Wiring harness

Motor Specifications

  • Voltage: 72-84 VDC
  • Power: 6 Hp continuous, 19 peak Hp
  • 90% efficiency
  • Sine/Cosine sensor
  • Voltage Constant: 50 RPM/VDC.
  • Torque Constant: 1.6 in-lb/A
  • Max Motor Current: 300 A/1min.
  • Bi-directional fan w/ aluminum cover
  • High speed rotor
  • Shaft: 7/8"x 1-3/4", 3/16" key
  • Weight: 22 Lbs.
  • Dia. 8".

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
72 - 80 VDC
Operating Voltage
39.1-120 VDC
Cont. Current (60m)
60 A
Current (120s)
180 A
Boost (10s) 215 A

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 No
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