Mains transformers

Single-phase and three-phase mains transformers from TRAMAG

For feeding primary voltages of different magnitudes

TRAMAG’s single-phase and three-phase mains transformers are used for the safe voltage supply of machines and systems. We offer autotransformers or isolating transformers for changing the output voltage with or without tapping. One or more taps on the primary winding of the transformer make it possible to feed in primary voltages of different magnitudes, transforming only to one output voltage. It is also possible to transform to several output voltages.

We provide mains transformers for the following industries

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Specifications of power transformers from TRAMAG

Technical characteristics and quality features

Mains transformers: Applications

Mains transformers are used for voltage matching for various applications. For example, our autotransformers and isolating transformers are used in power distribution, power supplies and various other industrial applications.

Mains transformers: technical characteristics

  • Power rating 1 MVA
  • Voltages primary up to 1,000 V
  • Voltages secondary up to 7,200 V
  • Frequency up to 1,000 Hz

Mains transformers: Quality characteristics

  • DIN EN 61558-2-1
  • DIN EN 61558-2-11
  • DIN EN 61558-2-13
  • UL/CSA
Transformer production – Innovative and reliable since 1923
Precisely fitting solutions for every application.


Always up to date on transformers

27. May 2024


A joint presence with a strong, innovative range of products for high-performance electrotechnical applications in drives, automation and testing technology…

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2. May 2024

TRAMAG Transformatorenfabrik is a new member of REDUR

We are pleased to announce that with REDUR GmbH & Co. KG we found an excellent buyer for TRAMAG Transformatorenfabrik GmbH & Co. KG as of 2 May 2024 and we are proud to be a new member of REDUR and the Phoenix Mecano family.

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22. January 2024

TRAMAG is alive, operations continue unabated at full power!

TRAMAG is alive, operations continue unabated at full power! “The trick is to get up once more than you are knocked down.” (Winston Churchill) All hands on deck, the TRAMAG […]

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20. December 2023

Christmas & New Year Greetings

The TRAMAG Team would like to thank its customers, business partners and friends for the trust they have placed in us and for their cooperation in partnership over the past year. 2023, another year full of business challenges, but also a year of suffering and misfortune for many people in regions near and far around the world.

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18. December 2023

Quality is when your QMB goes “High-Five-S” with you

We know where quality must ultimately be demonstrated and proven: In the product, in the customer’s application. But where does quality begin? On the one hand in technical development and on the other hand in the organization of workplaces in production. Employees who keep their workstations tidy maintain an overview, have access to the right tools at all times and can work on the product efficiently and with quality assurance.

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