Features | Zurich, Switzerland | 08.01.2025 | 2 min read
RESIBLOC Rail dry-type onboard traction transformers offer unparalleled safety for passengers and staff while protecting natural ecosystems
The collaboration between the companies will add service capacity, sustainability, comfort, and innovation for passengers
Hitachi Energy has secured a significant order from Siemens Mobility GmbH to deliver 360 RESIBLOC® Rail onboard traction transformers for upgrading the S-Bahn München rolling stock in the Bavarian region, Germany. These transformers, an essential system component to the trains’ operations, will enhance energy efficiency and reduce environmental impact.
As part of an extensive project to upgrade Munich’s S-Bahn, in which the Free State of Bavaria is investing more than two billion Euros, Siemens Mobility will deliver 90 new “XXL” S-Bahn trains with a length of over 200 meters. This will provide capacity for over 1,800 travelers per train. The first trains are scheduled to be delivered from the end of 2028 on.
They will set innovative standards in public transportation with the latest digital features, comfort, environmental protection, and operational safety, addressing the growth in passenger numbers and supporting the region’s mobility energy transition. Hitachi Energy is proud to contribute to that with its sustainable and efficient technology solutions.
Siemens Mobility is supplying 90 new “XXL” S-Bahn trains with a capacity of over 1,800 passengers per train for the S-Bahn Munich. These trains set new standards in public transport and support Munich's sustainability goals. We are pleased that Hitachi Energy will supply 360 Rail Onboard traction transformers to Siemens Mobility for these modern trains. The transformers will improve the energy efficiency of the rail vehicles and thus reduce the environmental impact.
Hitachi Energy’s RESIBLOC Rail dry-type transformers will be key to meeting S-Bahn’s service requirements for the new trains. This unique oil-free solution has been used in the market for more than 10 years for rail applications based on the proven RESIBLOC transformer technology, which has been optimized for over 50 years. It offers unparalleled safety for passengers and staff while protecting natural ecosystems. The transformers feature an oil-free design, which ensures reliable and safe performance, taking care of the environment with higher energy efficiency in operations and contributing to the decarbonization of the railway system. They also enable reduced operational costs and minimal maintenance requirements.
We are very proud to continue setting up new benchmarks in the market with this order from our customer Siemens Mobility. With RESIBLOC Rail as a unique oil-free traction transformer solution, we provide innovation, efficiency, and sustainability for the modern rolling stock industry.
Veronica Ruiz, Hub Europe Product Line Manager for Distribution and Traction Transformers from Hitachi Energy, and Dr. Markus Frank from Siemens Mobility (Source: Weishart/Siemens Mobility)
Currently, Hitachi Energy is the largest supplier of dry-type and liquid-filled traction transformers, with over 1,000 RESIBLOC Rail transformers in operation – covering over 750 million km worldwide. The company has a historical heritage in the rail and metro sectors, with over 5,000 transformers installed globally for infrastructure, and more than 30,000 units for rolling stock in operation.
