Siemens Mireo

Siemens Mireo
DB 463 308 of DB Regio operating for the VBB at Falkenberg/Elster in June 2023
ManufacturerSiemens Mobility at Waggonfabrik Uerdingen, Krefeld, NRW, Germany
Number built93 (two-car sets)
189 (three-car sets)
49 (four-car sets)
PredecessorSiemens Desiro ML
Specifications
Train length52–140 m (170 ft 7 in – 459 ft 4 in)
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)
  • Worn: 810 mm (32 in)
Wheelbase
  • Motor bogie: 2,300 mm (7 ft 7 in)
  • Jacobs bogie: 2,600 mm (8 ft 6 in)
Maximum speed140 or 160 or 200 km/h (85 or 100 or 125 mph)
Weight112 t (110 long tons; 123 short tons) (three-car sets)
Axle load20 t (20 long tons; 22 short tons)
Traction systemSiemens IGBT-VVVF
Power output2,600 kW (3,500 hp)
Tractive effort300 kN (67,000 lbf)
Accelerationaround 1.2 m/s (3.9 ft/s)
Electric system(s)15 kV  16.7 Hz AC from overhead catenary
Current collector(s)Pantograph (electric)
UIC classificationBo'2'2'2'Bo' (four-car sets)
BogiesSiemens SF7500
Safety system(s)PZB, LZB, ETCS

The Siemens Mireo is a family of electric multiple units (EMU) designed by Siemens Mobility. It is designed to be a successor to the "Mainline" variant of the company's Desiro EMUs.

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. The use of aluminum, combined with new control systems, is intended to reduce energy use by up to 25% compared to previous Siemens EMUs. The railcars can reach a top speed of up to 160 km/h (100 mph). Siemens Mobility is currently working on a hydrogen fuel cell prototype.

Siemens introduced the first Mireo railcars at the 2016 InnoTrans trade fair. 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. DB Regio ordered a further 57 three-car high-density sets for S-Bahn service. Production of Mireo trainsets began in 2018, with the first completed set unveiled in early December. Following testing, Mireo trains are expected to enter revenue service in June 2020.