DB Class 103

Baureihe 103

Company type	Electric locomotive series
Industry	Rail transport
Founded	1965
Headquarters	Germany
Products	Electric locomotives

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File:Führerstand Baureihe 103.jpg

Driver's cab

The Baureihe 103 represents a series of electric locomotives in Germany, initially operated by the Deutsche Bundesbahn. For an extended period, these locomotives were regarded as the flagship models within the DB fleet.

Development

Following World War II, the Deutsche Bundesbahn concentrated on acquiring a substantial fleet of Einheits-Elektrolokomotives to advance the electrification efforts and phase out older electric locomotive models. At that time, a maximum speed of approximately 160 kilometres per hour (99 mph) was considered adequate. However, with rising economic growth and increasing competition from alternative transport modes, particularly private cars, higher performance became necessary.

In the 1950s, there were initial intentions to upgrade pre-war DRG Class E 19 locomotives to reach speeds of up to 180 kilometres per hour (110 mph), but due to outdated engineering and insufficient braking capability, these plans were reconsidered. Consequently, requirements shifted toward achieving a top speed of 200 kilometres per hour (120 mph), incorporating a Co′Co′ wheel configuration to maintain axle loads below 18 tons. Features such as high-speed bogies were trialed using existing DB Class E 10 locomotives during this phase.

Prototypes

File:103 001 Luetzel 06052006.JPG

E03 001 showcased during a locomotive parade at the DB Museum, Koblenz, May 2006

In 1965, four prototype units were completed and unveiled to the public at the Internationale Verkehrsausstellung (International Transport Exhibition) held in Munich that June. Initially designated as Class E 03 (later reclassified as Class 103.0 under the updated numbering system), these locomotives regularly achieved speeds of 200 km/h during demonstration runs to Augsburg. Operational experience revealed that the installed power output of 5,950 kW or 7,980 hp continuous (and 6,420 kW or 8,610 hp for one hour) was inadequate. Consequently, serial production models featured enhanced motors along with a strengthened transformer.

Serial Type

The inaugural production variant, known as Class 103.1, entered service on 27 May 1970. Deutsche Bahn intended to launch a new Intercity network offering rapid first-class connections between major urban centers by autumn 1971. Accordingly, the specifications required the Class 103.1 to haul a 400-tonne (390-long-ton; 440-short-ton) train at speeds of up to 200 km/h (120 mph). With a total fleet of 145 units, Class 103.1 became the primary locomotive for the German Trans Europ Express and InterCity routes. Beginning with unit 103 216, the locomotive body was extended by 700 mm (27+1⁄2 in) to increase space within the driver’s cab.

Alongside standard safety systems such as Sifa and PZB, Class 103 was equipped with LZB technology to support speeds exceeding 160 km/h (99 mph). The integrated Automatische Fahr- und Bremssteuerung (AFB) (automatic speed and brake control) system maintained a constant velocity automatically at any selected speed.

Service

Upon the introduction of the new InterCity system, only a limited number of routes—including Hanover-Celle, Düsseldorf-Cologne, and Munich-Augsburg—were upgraded for maximum speeds of 200 km/h (120 mph). Additionally, official authorization for operations beyond 160 km/h (99 mph) had yet to be granted by authorities. As a result, Class 103 did not initially operate at its top speed during regular service. The rollout of high-speed services was further delayed following an accident on 21 July 1971, when AFB on unit 103 106 was suspected of causing uncontrolled acceleration that led to a derailment near Rheinweiler, resulting in 23 fatalities and 121 injuries.

The introduction of second-class service in 1979 expanded the formerly exclusive first-class InterCity system, significantly boosting its popularity and establishing it as West Germany's primary long-distance rail network. By this time, technical issues had been resolved, and speeds of 200 km/h (120 mph) were authorized on select lines equipped with necessary infrastructure upgrades such as Linienzugbeeinflussung (LZB) and overhead line modifications. Originally designed to pull trains consisting mainly of first-class coaches or occasional D-trains, Class 103 faced new challenges hauling heavier two-class InterCity trains weighing approximately 600 tonnes (590 long tons; 660 short tons) over extensive north-south routes across West Germany. Operating under a demanding timetable—with hourly trains running in both directions on every InterCity line—locomotives frequently covered distances exceeding 1,000 km (620 mi) daily. Given that only a small portion of the network allowed speeds up to 200 kilometres per hour (120 mph), high-speed operation contributed relatively little to overall wear.

Until the arrival of the DB Class 120 three-phase AC locomotives in 1987, Class 103 dominated fast train services in Germany and held exclusive rights for operations above 160 kilometres per hour (99 mph). However, by the early 1990s, intensive use led to an increasing frequency of mechanical failures—a trend exacerbated by Deutsche Bahn’s maintenance reductions amid privatization efforts.

With the debut of the first InterCityExpress trains in regular operation from 1991 onwards, Class 103 lost its flagship status within DB’s fleet. Considering escalating maintenance costs due to wear and tear, Deutsche Bahn opted to phase out these locomotives in favor of the newer DBAG Class 101, which commenced service in 1996.
In subsequent years, Class 103 units were reassigned to less demanding roles but were ill-suited for frequent stops, accelerating their deterioration. After briefly returning in 1998 during temporary removal of InterCityExpress units following the Eschede train disaster, all remaining Class 103 locomotives were withdrawn from routine service by 2003. Nevertheless, on 19 March 2013, preserved Class 103 engines resumed daily operations from Munich sporting their original InterCity paint scheme. Nuremberg-based No. 103245 hauled IC2201 from Nuremberg HBf alongside OBB Class 1116 134. Additionally, Frankfurt-based Class 103 locomotives are scheduled for services including IC118 Stuttgart–Munster, IC2099 Frankfurt HBf–Stuttgart, IC2316 Stuttgart–Wiesbaden, and LR78688 Wiesbaden–Frankfurt HBf.

Electric locomotive DB Class 103 (Baureihe 103) of RailAdventure at Munich Hauptbahnhof. It remains in use hauling special passenger trains.

DB Class 103 (Baureihe 103) operated by RailAdventure at Munich Hauptbahnhof continues to haul special passenger services.

Statistics

• Seventeen Class 103 locomotives have been preserved to date, with a minimum of five units still in active service. Among these, two remain within the Deutsche Bahn fleet and are regularly utilized for trial runs.
• Rated at one hour for 10,400 kW (13,900 hp) or 12,000 kW (16,000 hp), the Class 103 ranks among the most powerful traditional electric locomotives ever constructed, holding the record as the most potent single-section locomotive. Subsequently, its peak power output was restricted to 9,000 kW (12,000 hp).
• On June 14, 1985, locomotive No. 103 118 achieved a top speed of 283 km/h (176 mph).
• The greatest distance covered by a single unit during operational service was recorded in June 1972, totaling 50,250 km (31,220 mi).

External links

• DB 103 @ Trainspo