TM4 TautronicTM

40 years in the making

Equipped with the latest technology in power electronics, TM4 Tautronic inverters can drive AC motors in a wide range of applications up to 80 kW peak power.

  • 36V-48V / 80V-100V / 120V-144V 
  • 250A – 750A 
  • Asynchronous and Synchronous motor control
  • System or Slave Softwares
  • Up to 50% higher power density than direct competitors
  • High efficiency and long life power stage – DBC (Direct Bonded Copper) patented MOSFET multilayer power module technology
  • Field Oriented Control algorithm optimized for asynchronous and synchronous motors
  • Fully customizable I/O
  • Easy tuning with TAUTM Software

Optimal performance

Our in-house patented DBC MOSFET multilayer power modules allow for:

  • Very high power density allowing optimal compactness
  • High efficiency and long life power stage
  • Cost efficient system approach
  • High reliability

Easy tuning

TM4 TAUTM Software is a friendly PC application for inverter setup.

Users develop applications with the TM4 TAU Software:
All features are offered as standard (“one fits all” philosophy). Virtually everything can be changed with one click in an intuitive graphical tuning environment called SmartView™.

With this software, a first run for a wired vehicle can be made in minutes.

Learn more on TM4 Tau software

Specified and tested for

  • Environmental temperature down to -40°C up to 55°C
  • IP65
  • Vibration up to 5 g
  • Shock up to 30 g


  • EN1175 for safety
  • EN12895 for Electromagnetic compatibility
  • Designed to meet the standard UL583
  • Fulfils automotive EMC standard ECE R10-05, Annex 7-8-9-10


  • Forklift trucks
  • Aerial work platforms
  • 2 and 3 wheelers
  • Tow tractors
  • Delivery trucks
Nominal voltage (Vdc)72-8036-8080-100 / 80-144
Nominal current S2-2 min. (Arms)250375-500250-750
Continuous current (Arms)125175-250125-375
Weight (kg)1.533.5-3.7
Size WxHxD (mm)140x180x59.5 mm145x210x91mm210x160x85 mm
Motor compatibilityAsynchronous/SynchronousAsynchronous/SynchronousAsynchronous/Synchronous
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