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Seetal-Krokodil am Remisefest und der internationalen Modelleisenbahnausstellung in Hochdorf 2016.jpg
De 6/6 15301 in Hochdorf
Type and origin
Power type Electric
Builder SLM BBC
Build date 1926
Total produced 3
AAR wheel arr. C-C
UIC class C′C′
Gauge 1,435 mm (4 ft 8 12 in)
Wheelbase 10,800 mm (35 ft 5 in)
(first and last axle)
Length 14,000 mm (45 ft 11 in)
Loco weight 73 tonnes (71.8 long tons; 80.5 short tons)
Electric system(s) 15 kV 16 23 Hz AC Catenary
(also 5.5 kV 25 Hz AC catenary until 1930)
Current collection Pantograph
Traction motors Two
Performance figures
Maximum speed 50 km/h (31 mph)
Power output 850 kW (1,140 hp)
Operators Swiss Federal Railways
Numbers 15301–15303
Nicknames Seetal Crocodile
Withdrawn 1983
Preserved 1
Current owner Oensingen-Balsthal-Bahn

The Swiss Class De 6/6 electric locomotives were built in 1926 for the Swiss Federal Railways. Ordered for the Seetalbahn line, which runs between Lenzburg and Emmenbrücke, they were Known as Seetal Crocodiles. In total 3 locomotives of this type were built, and numbered 15301–15303. As built they were capable of operating under dual voltage - the 5.5 kV, 25 Hz AC system in use on the Seetal line, and the national 15 kV 16 23 Hz AC system. The former system was removed from these locomotives in 1930, when the line was modernised to SBB national standards.

Disposal and preservation[edit]

All three locomotives were withdrawn by SBB in April 1983, with 15302 and 15303 being scrapped. 15301 was purchased by the Oensingen-Balsthal-Bahn.[1]

See also[edit]


  1. ^ "Standard Gauge Crocodiles". Rhaetian Railway (RhB) – Prototype and H0m Model Railroading. Retrieved 26 September 2009.