Contact inquiry
Questions? Contact now:


Competence and Reliability

Nahaufnahme von dreiphasen Drosseln gespiegelt
Foto eines einphasigen Netzgeräts

Supply bottlenecks for 24 VDC switching power supplies?

Due to the corona pandemic and cross-border logistics problems, the procurement of primary switched-mode power supplies can become increasingly difficult and expensive.

Should it become apparent in the coming weeks that the delivery of your controller is blocked due to the lack of switching power supplies, a conventional transformer power supply might be the right way to solve the acute procurement problem quickly and easily.

From our warehouse and with speed delivery service*, we supply you with power supplies from one day to the next.
Single-phase power supplies: EGSU, EGSUM, EGSUA
Three-phase power supplies: DTG, DTGS

Thanks to our 24-hour service** we can produce and deliver custom-made articles within a very short time.

*Delivery area Germany; provided that parcel services can exercise their standard and express services without restrictions.

**applies to individual items and urgent requirements within 24h.

project planning and implementation

You have a project and need support during the development phase?

We are looking forward to every challenge!

Successful audits and certifications

Implementation of successful customer audits and product certifications are the basis of our work.

How may we help you?

We are there for you – our services

Fulfilling our customers wishes with the highest quality standards and creating solutions from problems. Customized, reliable and dynamic.

Gruppenfoto Chef und Mitarbeiter mit Maschine von 1970

1961 - 1971 The first 10 years: from the stall fan to the first transformers

The former repair shop becomes the developer of transformers

1972 bis 1982 neues Firmengebaeude in Korb

1972 - 1982 In large steps to become the specialist in transformer construction

Since 1981 in our new company headquarters in the town 'Korb'

1992 bis 1997 neue Generation uebernimmt die Firma

1992 - 1997 A new generation of leaders takes over the management

Transformers and customer-specific designs are on the rise

50 Jahre Jahnsmueller Jubilaeum

2011 - We celebrate 50 Years of Jahnsmüller!

Development from a repair company to the transformer all-rounder

neue Hallenkräne unterstützen bei schweren Transformatoren

2018 - New indoor cranes simplify production

And assist in building heavy transformers

2020 Gruppenfoto Jahnsmueller Team

2020 - Close cooperation in a small team

Thanks to short distances and flat hierarchies we react quickly and flexibly

Transformatoren Technik Jahnsmüller

A modern family-owned business

With the company Transformatoren Technik Jahnsmüller you have an innovative partner at your side who can look back on more than 50 years of development and production experience.

As a medium-sized managed family-owned company, we have been developing and producing transformers, chokes, power supplies and other winding products MADE IN GERMANY since 1961.

Are you currently in the middle of product development? Please contacts us. We are happy to support you with solutions and optimizations.

Nahafunahme von Kupferdraht auf Spulen