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Swiss Federal Railways Ee 6/6II
later Ee 961
Switzerland | 1980 | 10 produced
No. 16816 in June 2020 in Lausanne/Denges-Echandes
No. 16816 in June 2020 in Lausanne/Denges-Echandes
Joachim Lutz

In 1980, the SBB had ten heavy class Ee 6/6II shunting locomotives built. The mechanical part came from SLM Winterthur, while BBC was responsible for the electrical part. It used converter technology, making it the second locomotive of this type on the SBB. Structurally, the Ee 6/6II was similar to many diesel shunters, i.e. it had a supporting frame, a central driver's cab and lower and narrower superstructures to enable visibility in both directions. There was a pantograph on the cab roof, which was used for driving in both directions.

They replaced the last Ce 6/8II that were still used in shunting service. They were mainly used for service on electrified humps in marshalling yards. Now and then they also ran freight trains on routes of 100 kilometers and more, for which the top speed of 85 km/h was still sufficient. The career of the locomotives, now known as the Ee 961, ended after a little more than 40 years. By the beginning of 2021, all of them had already been decommissioned and scrapping began shortly thereafter.

General
Built1980
Manufacturermechanical part: SLM, electrical part: BBC
Axle configC-C 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length57 ft 1 1/16 in
Wheelbase40 ft 0 5/16 in
Fixed wheelbase12 ft 5 5/8 in
Service weight235,894 lbs
Adhesive weight235,894 lbs
Axle load39,242 lbs
Power
Power sourceelectric - AC
Electric system15.000 V 16⅔ Hz
Hourly power979 hp (730 kW)
Top speed53 mph
Power Plant
Boiler
Calculated Values
electric locomotive
switcher
last changed: 09/2022
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