DB Class 120
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| Deutsche Bundesbahn Baureihe 120 | |
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| DB electric locomotive 120 142 arriving at Stuttgart main station with train number IR 2565, 1995-08-11 | |
| Power type | Electric |
| Builder | BBC, Henschel, Krauss-Maffei, Krupp |
| Build date | 1979–1980 (120.0) 1987–1989 (120.1) |
| Total produced | 65 |
| UIC classification | Bo′Bo′ |
| Gauge | 1,435 mm (4 ft 8 1⁄2 in) |
| Length | 19.20 m (63 ft 0 in) |
| Locomotive weight | 84.0 tonnes (82.7 long tons; 92.6 short tons) |
| Traction motors | Four |
| Top speed | 200 km/h (124 mph) |
| Power output | 5,600 kW (7,500 hp) |
| Tractive effort | 340 kN (76,000 lbf) |
| Locomotive brakes | KE-GPR, electric brakes |
| Train brakes | Air |
| Safety systems | Sifa, Indusi |
| Career | Deutsche Bundesbahn Deutsche Bahn AG |
| Class | 120 |
| Disposition | Still in active service |
The DB Baureihe 120 is a class of electric locomotives operated by DB Fernverkehr in Germany.
[edit] Background and design
The locomotives' prototypes, delivered in 1979 (Mark 120.0), were one of the first electric locomotives with three-phase motors. They were based on experiences made in the 1970s with diesel-electric test platforms (Mark DE 2500/ DB Mark 202). In Norway, a new four-axle Locomotive, Mark El-17, was launched during 1983 with top speeds up to 93 mph.
The design was intended to be the first truly universal locomotive, capable of pulling fast passenger trains as well as heavy freight trains. While the electric equipment exceeded expectations, the mechanical part suffered from its lightweight construction necessitated by the heavy electronics of the time.
After extensive tests, a series of 60 locomotives (Mark 120.1) were ordered in 1984 and delivered in 1986-1988. Original plans to build up to 2,000 machines were ultimately ended by DB's privatisation. The 120s went to DB Fernverkehr, the other divisions of Deutsche Bahn ordered locomotives that featured technologies from the 120, but were not direct successors.
[edit] Technical data 120
| 120.0 | 120.1 | |
|---|---|---|
| General | ||
| Operator | DB | => |
| Manufacturing year | 1979-19xx | 1986-1988 |
| Number of manuf. | 5 | 60 |
| Supplier mechanical part | Henschel, Krauss Maffei, Krupp | => |
| Supplier electrical part | BBC, Siemens, AEG | => |
| Axle arr | Bo-Bo | => |
| Weight | 84,0 t | => |
| Axle load | 21,0 t | => |
| Max tractive eff | 290/340 kN | 340 kN |
| Max speed | 280 km/h | 200 km/h |
| Body | ||
| Length | 19.200 mm | => |
| Bogie distance | 10.200 mm | => |
| Height over pantograph | 4.375 mm | => |
| Body width | 3.000 mm | => |
| Coupling | buffer | => |
| Surface | smooth steelsheet | => |
| Colour | wine-red beige | red, white |
| Bogies | ||
| Track width | 1.435 mm | => |
| Axle distance | 2.800 mm | => |
| Wheel diameter,new | 1.250 mm | => |
| Primary suspension | coil | => |
| Secondary suspension | coil | => |
| Brake | shoe, reostatic, regenerative | shoe, regenerative |
| Bogie Weight | 15,96 t | => |
| Min hor radius | 100 m | => |
| Electrical equipment | ||
| Catenary voltage | 15 kV | => |
| Catenary frequency | 16 2/3 Hz | => |
| Max cont power | 4,4 MW | => |
| Traction motor | BQg 4843 | => |
| Max power trainheating | 900 kW | => |
[edit] Gallery
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120 143 in Dresden
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120 002 in Würzburg 1984
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DB-AG BR 120 (DB Systemtechnik), Summer 2006 in Dresden Main Station
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120 134 arrives at Köln Hbf
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120 502 leaves Köln Hbf on a Bahntechnik train.
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