High Voltage Controllers


This AC motor controller has been designed to meet the high performance requirements of on-road and off-road electric and hybrid electric vehicles. A compact, rugged and cost-effective design, the Gen4 S8 is well suited for EV OEMs, EV conversions and EV drive train and generator systems. It operates from 120V to 400V DC with power levels of 100kW peak.



  • Intelligent control inside - Advanced motor control algorithms inside utilising over 50 years of experience
  • AC permanent magnet synchronous motor support
  • AC induction motor support
  • Up to 400V DC supply voltage
  • Up to 100kW peak power output
  • Up to 60kW of continuous power output
  • Includes an additional dedicated safety supervisory processor
  • Will have dual processing and conform to automotive safety standards
  • IP66 Protection
  • Advanced flux vector control for minimal power consumption
  • Compact size and light weight
  • Flexible choice of power connections via flying leads
  • Regenerative braking allowing reduced battery power consumption


Highly efficient motor control algorithms and inbuilt regenerative braking ensure class leading efficiency and a longer vehicle range.

  • Highly flexible in-built software includes vehicle master functionality remove the need for additional VCU units.
  • Control of Permanent Magnet motors allows the use of high performance motors in more demanding applications. 
  • Our experience with a range of motors and many different applications offers a low risk solution to your electrification needs.

Solution & Applications

  • Hybrid Vehicles

Complimentary Products

Download Data sheet

Please enter your name and email address to access our product information sheet.


Sevcon is a global company with sites all over the world. Partner with us to take electrification into the future.

View a full list of contacts and suppliers

Share this page

Contact Sevcon

Interested in choosing Sevcon as your electrification partner? Contact us today.

Prefer to speak to us directly?

Find contacts