Siemens Mireo

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Siemens Mireo family
J41 263 Bf Falkenberg (E), 463 608.jpg
DB 463 308 of DB Regio operating for the VBB at Falkenberg/Elster in June 2023
Stock typeElectric Multiple Unit (EMU)
Manufacturer Siemens Mobility
Built at Waggonfabrik Uerdingen, Krefeld, NRW, Germany
Number built93 (two-car sets)
189 (three-car sets)
49 (four-car sets)
Predecessor Siemens Desiro ML
Specifications
Width2.808 or 3 m (9 ft 2.6 in or 9 ft 10.1 in)
Height4.208 m (13 ft 9.7 in)
Wheel diameter
  • New: 880 mm (35 in) [1]
  • Worn: 810 mm (32 in) [1]
Wheelbase
Weight112 t (110 long tons; 123 short tons) (three-car sets)
Axle load 20 t (20 long tons; 22 short tons)
Traction system Siemens IGBT-VVVF
Power output2,600 kW (3,500 hp)
Tractive effort 300 kN (67,000 lbf)
Acceleration around 1.2 m/s (3.9 ft/s)
Electric system(s) 15 kV  16.7 Hz AC from overhead catenary
Current collection Pantograph (electric)
Bogies Siemens SF7500 [1]

Siemens Mireo is a family of electric multiple units (EMU) designed by Siemens Mobility. It is designed to be a successor to the "ML-MainLine" variant of the company's Desiro EMUs. [2]

Contents

The railcars have an articulated design and aluminum carbodies, with 26 meters (85 ft) cab cars on each end of a trainset and 19 meters (62 ft) passenger cars between them, with trainsets between two and seven cars long. [2] The use of aluminum, combined with new control systems, is intended to reduce energy use by up to 25% compared to previous Siemens EMUs. [3] The railcars can reach a top speed of up to 160 km/h (100 mph). [2] Siemens Mobility is currently working on a hydrogen fuel cell prototype. [4]

Siemens introduced the first Mireo railcars at the 2016 InnoTrans trade fair. [2] The first units were ordered in February 2017 by DB Regio, which ordered 24 three-car trainsets with a passenger capacity of 220 for service on its routes in the Rhine valley in southwestern Germany. [3] DB Regio ordered a further 57 three-car high-density sets for S-Bahn service. [4] [5] Production of Mireo trainsets began in 2018, with the first completed set unveiled in early December. [5] [6] Following testing, Mireo trains are expected to enter revenue service in June 2020. [6]

Variants

Mireo

Mireo (Baseline)
Mireoaverioby.jpg
Stock typeElectric multiple unit
Fleet numbers0463, 1463, 2463
Specifications
Train length3-car: 69.86 metres (229.2 ft)
4-car: 89.66 metres (294.2 ft)
Maximum speed160 kilometres per hour (99 mph)
UIC classification 3-car: Bo’2’2’Bo’
4-car: Bo’2’2’2’Bo
4-car: Bo’2’2’Bo’Bo’
Safety system(s)ETCS, LZB, PZB, Sifa

This is the standard and baseline version of the Mireo family, designed for electrified tracks, it is highly modular and optional to fit for customer needs.

Mireo Smart

In November 2020, Siemens unveiled the Mireo Smart. This is a standardized Mireo baseline product which only comes in the 3-car configuration and a fixed cabin layout, aiming for attractive pricing and faster delivery. [7] It includes features such as more advanced CCTV systems, improved passenger information systems, and full testing before delivery. [8]

Siemens Mobility founded the subsidiary company „Smart Train Lease GmbH“ (STL) in February which allows for near-term leases of Mireo-Smart trainsets. [9] [10] The vehicle fleet for the German market will be established during 2024 comprising initially of 12 Mireo Smart, two Plus B and six Plus H. Smart Train Lease expects a common lease to run for one to eight years with a lead time of several months. [11]

Mireo ÖBB

Mireo ÖBB
Stock typeElectric multiple unit
Constructed2026-present
Fleet numbers4864 001-031 (Railjet version)
Specifications
Train length73–106 m (239 ft 6 in – 347 ft 9 in)
Maximum speed160 kilometres per hour (99 mph)
UIC classification Bo’Bo’+2’2’+Bo’Bo’
Bo’Bo’+2’2’+2’2’+Bo’Bo’
Safety system(s)ETCS, LZB, PZB, Sifa

The Mireo specially configured for the Austrian Federal Railways (ÖBB) are equipped with classic bogies which is similar to its predecessor Desiro ML, instead of Jakob bogies seen on the standard Mireo lineup. Therefore it will also open up more space in the under-carriage section for additional equipments. [12]

A total of 100 sets were ordered by the Austrian carrier including 31 4-car trainsets (Class 4864) dedicated to long-distance services (Railjet), 33 4-car and 36 3-car trainsets for regional services (Cityjet). [12]

Mireo Plus

Mireo Plus
Siemens Mireo Plus H 563 101 (52393333051).jpg
Siemens Mireo Plus H at Innotrans 2022
Stock typeElectric multiple unit
Fleet numbers0563
Specifications
Train length46.56 metres (152.8 ft)
Maximum speed140 kilometres per hour (87 mph)
Safety system(s)PZB, Sifa

The Mireo has two variants to run on unelectrified sections. These can be distinguished by their longer high-floor section at the start of the train (four windows instead of three) where the additional devices are placed underneath. They are in passenger service since 2024.

Mireo Plus H

Siemens and Ballard Power Systems are developing a fuel cell system for the trains, which is expected to be operational in 2021. [5]

Mireo Plus B

A battery-equipped variant has been developed. [13] It can run on both electrified lines (taking current from the catenary) and unelectrified lines (using the batteries). It can travel 80 kilometres (50 mi) on unelectrified lines. [4]

In August 2019, NV Baden-Württemberg  [ de ] ordered 20 battery-electric Mireos. They will be used on the electrified Offenburg - Freudenstadt/Hornberg line (Kinzig Valley Railway) and on several unelectrified lines (Rench Valley Railway, Harmersbach Valley Railway and Acher Valley Railway). This was later entended to 28 units. [14]

These trains use Lithium-titanate batteries (LTO). Toshiba guaranteed 15,000 cycles at 10C by 2019 and 40,000 cycles at 10C by 2022. [15] The LTO batteries are replacing prior usage of supercaps in trains to store the energy from braking. [16]

In 2025, Midtjyske Jernbaner started operating the Plus B. [17]

Mireo City

Mireo City
Koenigsplatz, IAA 2025, Munich (20250909-P1050624).jpg
Mockup of the Mireo City for Munich S-Bahn
Trains of S-Bahn Munchen IAA 2025 DSC 2143.jpg
Stock typeElectric multiple unit
Number under construction90
Fleet numbers1420 001-090
Operators Munich S-Bahn
Specifications
Train length202.2 metres (663 ft)
Safety system(s)ETCS, LZB, PZB, Sifa

The Mireo City is a sub class family focused on suburban rail transport.

The Munich S-Bahn ordered 90 13-car variant of the Mireo City and has an option for 90 sets more. [18]

References

  1. 1 2 3 4 5 "MoComp Bogie SF7500 Platform for trains" (PDF). Siemens Mobility Austria GmbH . 2022-02-01. Archived (PDF) from the original on 2024-05-12. Retrieved 2024-12-03.
  2. 1 2 3 4 "Siemens to unveil Mireo modular EMU concept". Railway Gazette. 30 June 2016. Retrieved 17 February 2017.
  3. 1 2 "DB Regio places first order for Siemens Mireo". Railway Gazette. 17 February 2017. Retrieved 17 February 2017.
  4. 1 2 3 "Mireo EMU unveiled by Siemens". International Railway Journal. 2018-12-06. Retrieved 2019-08-06.
  5. 1 2 3 "Assembly of first Siemens Mireo EMU underway". Railway Gazette. 5 June 2018. Retrieved 6 June 2018.
  6. 1 2 "Siemens presents first Mireo EMU". Railway Gazette International. 7 December 2018. Retrieved 28 December 2018.
  7. "Mireo Smart: 100% focus on efficiency". press.siemens.com. Retrieved 2022-05-06.
  8. "Mireo Smart". Siemens Mobility Global. Retrieved 2022-05-06.
  9. "Flexibles Mietmodell für Regionalzüge: Smart Train Lease GmbH". Siemens Mobility. 2024-02-14. Retrieved 2024-02-14.
  10. "Flexibel und smart: Lösungen und Services". Smart Train Lease. Retrieved 2024-02-15.
  11. Mark Simmons (2024-02-27). "A new leasing model for Europe?". International Railway Journal . Simmons-Boardman Publishing. Archived from the original on 2024-02-27.
  12. 1 2 "Siemens Mobility liefert erste 70 Nah- und Fernverkehrszüge aus der Baureihe Mireo an ÖBB". Siemens Mobility Global (in German). Retrieved 2026-01-31.
  13. "Mireo Plus B Ortenau FOR SFBW, BADEN-WÜRTTEMBERG, GERMANY" (PDF). Siemens Mobility GmbH . Archived (PDF) from the original on 2022-03-15. Retrieved 2024-12-03.
  14. "Siemens Mobility to deliver 28 Mireo regional trains for Baden-Württemberg". Siemens. 10 August 2023. Retrieved 13 January 2026.
  15. https://www.global.toshiba/ww/products-solutions/battery/scib/product/cell/high-power.html
  16. Neue Batteriezüge mit Spezialakku - Jochen Steinbauer (Siemens Mobility) & Tobias Beckers (HLB) on YouTube, Batteriepodcast (Karlsruher Institut für Technologie), uploaded 2024-04-14
  17. "Batteritog er på vej til Vestjylland" (in Danish). Kollektiv Trafik Forum.
  18. "Mireo City – new standards in German urban rail transportation". Siemens Mobility Global. Retrieved 2025-09-11.