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SBB-CFF-FFS Ee 3/3 IV
Ee 3/3 IV in Lausanne
Type and origin Power type Electric Builder Swiss Locomotive and Machine Works Société Anonyme des Ateliers de Sécheron Build date 1962-1963 Total produced 10
Specifications Configuration: ​  •  Whyte 0-6-0 OE  •  UIC C Gauge 1,435 mm (4 ft 8+1⁄2 in) Length: ​  • Over buffers 10.02 m (32 ft 10 in) Electric system/s 15 kV  16.7 Hz AC 25 kV AC 3,000 V DC 1,500 V DC
Performance figures Maximum speed 60 km/h (37 mph) Power output: ​  • 1 hour 390 kW (520 hp) (at 24 km/h (15 mph)) Tractive effort: ​  • Starting 118 kN (27,000 lbf)  • 1 hour 58 kN (13,000 lbf)
Career Operators Swiss Federal Railways Numbers 16551–16560 (pre-1994) Ee 934 551–560 (post-1994)

The Ee 3/3^IV, the fourth iteration of the Ee 3/3 series, is a class of ten shunting locomotives specially designed for use as pilots at border stations. The complicated equipment needed for four different electrical systems required a higher and wider body in front of and behind the cab and a reduction in power. Nevertheless, thanks to a modern crank drive, a maximum speed of 60 km/h can be attained.

The Ee 3/3^IV are used in French and Italian border stations, mostly at Geneva, on similar duty to the previous versions. All locomotives were equipped with a multiple drive in 1994, similar to the Ee 3/3^II. During the upgrade the locomotives received new service numbers (Ee 934).

Due to their ability to run on 1,500 V DC system, they were occasionally used to haul passenger trains between La Plaine and Geneva when the SBB-CFF-FFS BDe 4/4 II were being repaired.

• List of stock used by Swiss Federal Railways
• Swiss Federal Railways

• Bilder der Ee 3/3 IV im digitalen Eisenbahn Fotoarchiv
• Site von Bruno Lämmli

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