Höcherl & Hackl introduces the new electronic three-phase AC load: the ACL series.

With the ACL series, H&H makes it possible to load three phases of an AC three-phase system with only one device. This allows compact test systems to be implemented without complex wiring of the control electronics. The three load phases can also be connected in parallel to load a single phase. DC operation is also possible.

The ACL series can operate in CC, CV, CR and CP mode. Combinations of these modes are also possible. Six power versions are available from 3x 1.400W up to 3x 8.400W. This in combination with a 280V AC or a 500V AC input (400V and 700V DC). The frequency range is from 40 to 1000Hz.

Convenient functions for waveform generation, such as the superposition of harmonics, phase cuts, phase shift in conjunction with adjustable crest factor or phase cut and arbitrary waveforms, are implemented as standard.

The new generation of loads features a brilliant 4.3″ touch display with which all functions of the device can be operated. User settings can be set and stored individually. LAN, USB, RS232 and CAN interface are standard; GPIB optional.

The specifications of this series can be found in the datasheet.

If you have any questions about prices or delivery times, or if you want a demonstration of the ACL series, please contact us. We will gladly advise you in choosing the best solution for your application.


Arnold Memelink

Arnold Memelink


"The ABB Power Grids Jumet organisation is an innovative development and production facility of ABB that manufactures active filters and battery energy storage systems to support a stable grid. To test these systems we have acquired two Cinergia GE/EL +120kVA eplus units capable of doing grid emulation (AC + DC), operating as an electronic load (AC +DC) and being a battery emulator. We have experienced very good support from TTMS in obtaining these two Cinergia units. This included organising an on-site demonstration and supplying loan systems prior to the delivery of our final systems. This way we could start testing as early as possible. TTMS also organised training for the operators from the original manufacturer. This support allowed us to introduce the first battery energy storage systems even prior to the full delivery of the Cinergia systems."

University of Luxembourg

Sasan Rafii-Tabrizi

University of Luxembourg

“At the Energy and Environment department of the Faculty of Science, Technology and Medicine (FSTM) of the University of Luxembourg we do have different research projects related to green energy contributing to the development of eco-cities. As a long-standing partner of our research unit, TT&MS has proven that they are able to answer even the most complex questions in a professional manner. They have shown that they are always up to date with the latest technology and do not spare any effort to look at the application and even the situation on site. The exchange of ideas was always very pleasant and took place quickly. We look forward to further years of fruitful cooperation.”


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