NSB Di 6

NSB Di 6
Di 6 in service with Nord-Ostsee-Bahn of Germany
Type and origin
Power typeDiesel-electric
BuilderSiemens Schienenfahrzeugtechnik at Maschinenbau Kiel
Build date1997
Total produced12
Specifications
Configuration:
 • UICCo′Co′
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Wheel diameter1,060 mm (41.73 in)
Minimum curve100 m (328 ft)
Wheelbase3.94 m (12 ft 11+18 in) (bogie outer axle distance)
11.75 m (38 ft 7 in) (bogie center distance)
Length20.96 m (68 ft 9+14 in)
Width3.00 m (9 ft 10+18 in)
Height4.39 m (14 ft 4+78 in)
Axle load20.6 t
(20.3 long tons; 22.7 short tons)
Loco weight122 t
(120 long tons; 134 short tons)
Fuel capacity5,000 L
(1,100 imp gal; 1,300 US gal)
Prime moverMaK 12M282
Engine typeV12
GeneratorVEM DREBZ 5620-8
Cylinders12
TransmissionElectric
Performance figures
Maximum speed160 km/h (99 mph)
Power output2,650 kW (3,550 hp) @ 1000 RPM
Tractive effort400 kN (90,000 lbf)
Career
OperatorsNorwegian State Railways
Number in class12
Numbers6.661 – 6.672
Current ownerVossloh
DispositionReturned to Siemens (Dispolok) and sold to Vossloh
Sources:[1][2] except where noted

NSB Di 6, later designated ME 26 and DE 2700, is a class of twelve diesel-electric locomotives built by Siemens for the Norwegian State Railways (NSB). The prime mover provides a power output of 2,650 kilowatts (3,550 hp), a starting traction effort of 400 kilonewtons (90,000 lbf) and a maximum speed of 160 kilometres per hour (99 mph). They have a Co′Co′ wheel arrangement. The bidirectional locomotives were designed for use with both passenger and freight trains.

The units were ordered by NSB in 1992 as replacements for the aging Di 3, and were particularly intended for use on the Nordland Line and to a lesser extent on the Røros Line. Construction was done by Maschinenbau Kiel (MaK) in Kiel, Germany, which was then part of Siemens Schienenfahrzeugtechnik. The class is largely based on the MaK-built DB Class 240, with each unit costing 32 million Norwegian krone (NOK). The first units were delivered in March 1996, one year after schedule, but were plagued with faults. By 1999, the entire order was terminated and the locomotives returned to Germany. They were taken over by locomotive lessor Dispolok and were used by various Germany railway companies. Ownership was taken over by Vossloh in 2003, after which most of the class were leased to German passenger train operator Nord-Ostsee-Bahn. In 2008, three units returned to Norway and are used by Cargolink for freight trains.

  1. ^ Cite error: The named reference siemens was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference kiel was invoked but never defined (see the help page).