Reliable
power electronics
and power supply
for 75 years!

We are celebrating our company anniversary! Gustav Klein has been supplying power supply devices and systems for 75 years. The know-how and experience of our qualified employees offer you reliability and competence in solving your specific requirements. The continuous development of our product portfolios will ensure that truly secure systems will continue to be available in the future.

I-TS / MI-TS with up to 1200 V & 1200 A // 1500 V & 800 A // 1500 V & 1000 A

NEW: Infeed Test System up to
1200 V & 1200 A  // 1500 V & 800 A  //  1500 V & 1000 A

Testing and simulation

For electromobility, development and industry

To test batteries, fuel cells, e-drive trains and other components, we offer uni- and bidirectional power supply solutions. A clear design, reliable components and easy maintenance characterize our source/sink systems.

  • Li-ion batteries
  • Batteries
  • Fuel cells
  • Inverter
To our products

Highly available power supply

For industry, hospital and railway

For more than seven decades, Gustav Klein has been your reliable partner for a safe power supply – from consulting and planning to implementation, commissioning and service. Maximum service life and ease of servicing are the hallmarks of our systems.

  • Stationary railway supply
  • Industry solution
  • Power plants
  • Infrastructure
  • Operating theatres in hospitals
To our products

Technology, competence, reliability, quality & innovation

Your partner for
power supply - worldwide.

Technology, competence, reliability, quality & innovation

Always stay up to date

Unser kostenloser Newsletter informiert Sie regelmäßig per E-Mail über interessante Themen und bevorstehende Termine.

We are a long-term partner

Our exclusive service

We do not only want to deliver our systems, but also to accompany them. With our extensive range of services, we are always happy to assist you and offer you tailor-made solutions specifically to your requirements.

More service

Maintenance

We offer customised maintenance contracts and maintenance concepts for your systems.

System replacement

We help you renew your power supply.

24h hotline

We are available for you around the clock.

Material exchange

Wear parts or ageing components should be replaced at certain intervals.

News, press and more

We go forward - more
news from Gustav Klein

  • News

Ausbildungsstart 2024 bei Gustav Klein in Schongau

🎉 𝗪𝗶𝗹𝗹𝗸𝗼𝗺𝗺𝗲𝗻 𝗶𝗺 𝗧𝗲𝗮𝗺, 𝗹𝗶𝗲𝗯𝗲 𝗔𝘇𝘂𝗯𝗶𝘀! 🙋‍♀️   Herzlich willkommen liebe Melina, Elias, Robert und Matthias im Gustav Klein-Team. Heute ist natürlich nicht nur für Sie ein aufregender Tag, sondern auch für ihre Ausbilder Denise und Norbert. Zum Start gab es eine Betriebsführung, es wurden alle unsere Abteilungen gezeigt und ihnen das Gustav Klein-Team vorgestellt. […]
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  • News

NOW NEW: The proven test system with up to 1500 V / 800 A

Infeed test system with up to 1500 V & 800 A I-TS-3870: Single-channel system MI-TS-3871: Multi-channel system Outstanding properties and a wide range of design variants: • Various input voltages • Highest safety standards • Simple integration through various interfaces • Many other options available e.g. insulation monitoring, battery simulator / battery tester switchable and much […]
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  • News

An unforgettable day at the Gustav Klein summer party!

On Friday, we had the pleasure of celebrating our summer party. In the best weather and in a relaxed atmosphere, we laughed, chatted and made great memories together. Our Bavarian Olympics were particularly exciting and required team spirit and sporting ambition. A huge thank you to everyone who took part – you made this day […]
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Join our team!

For over 75 years, the medium-sized family business Gustav Klein has been developing and manufacturing reliable solutions in the field of power supply as well as test / simulation systems for e-mobility in Schongau and Inzing.

Join our team