NSB Di 8

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NSB Di 8
CargoNet Di 8.704 at Nässjö Central Station, Sweden
Type and origin Power type Diesel-electric Builder Siemens Schienenfahrzeugtechnik[1] Build date 1996–1997[1] Total produced 20[1]
Specifications Configuration: ​  • UIC Bo'Bo'[1] Gauge 1,435 mm (4 ft 8+1⁄2 in) standard gauge[1] Length 17.4 m (57 ft 1 in)[1] Width 3.0 m (9 ft 10+1⁄8 in)[1] Height 4.385 m (14 ft 4+5⁄8 in)[1] Loco weight 82 t (81 long tons; 90 short tons)[1] Fuel capacity 3,500 L (770 imp gal; 920 US gal)[1] Prime mover Caterpillar 3516 DITA[1]
Performance figures Maximum speed 120 km/h (75 mph)[1] Power output 1,570 kW (2,110 hp)[1]
Career Operators Norwegian State Railways 1997–2002 CargoNet 2002– GB Railfreight 2011– Numbers 8.701–720

The NSB Di 8 is a class of diesel-electric locomotives built by Maschinenbau Kiel (MaK), while it was part of Siemens Schienenfahrzeugtechnik, for the Norwegian State Railways (NSB). The locomotives are equipped with a Caterpillar 3516 DI-TA prime mover, which provides a power output of 1,570 kilowatts (2,110 hp) and a starting tractive effort of 270 kilonewtons (61,000 lb_f).

Twenty locomotives were delivered in 1996, largely based on MaK's previous production series, the Dutch NS Class 6400 and German DE 1002, although receiving some upgrades to the specifications. NSB took delivery of the class to replace the aging Di 3, and the units have been used on freight trains on un-electrified lines, including the Nordland Line and the Røros Line. They were transferred to CargoNet in 2002, when NSB's cargo division was demerged. Ten units were sold to GB Railfreight in 2011 and are used at the Scunthorpe Steel works in Scunthorpe, United Kingdom.