FS Class E.646

The FS E.645 and E.646 are two classes of similar electric locomotives used on Italian railways. They were introduced during the 1950s and they were retired in 2009.

FS class E.646
E.646 in original livery
Type and origin
Power typeElectric
BuilderTIBB
Build date1958-1967
Specifications
Configuration:
​
 • UICBo-Bo-Bo
Wheel diameter1.250 m (49.21 in)
Wheelbase13.550 m (44 ft 5+1⁄2 in)
between bogie pivots
2.850 m (9 ft 4+1⁄4 in)
between axles on each bogie
Length18.290 m (60 ft 1⁄8 in)
Width3.013 m (9 ft 10+5⁄8 in)
Height4.296 m (14 ft 1+1⁄8 in)
Loco weight110–112 t (108–110 long tons; 121–123 short tons)
Electric system/s3,000 V DC Catenary
Current pickup(s)Pantograph
Traction motorsDC
Transmission25/64 gear ratio
Loco brakeOerlikon FV4
Safety systemsRSC4; some units (about 40) have also been fitted with SCMT
Performance figures
Maximum speed140 km/h (87 mph)
Power outputhourly: 4,320 kW (5,790 hp) - continuous: 3,780 kW (5,070 hp)
Tractive effort233 kN (52,000 lbf)
Career
OperatorsFS Trenitalia
Number in class198
First run1958
DispositionDecommissioned in 2009
FS class E.645
Type and origin
Power typeElectric
BuilderTIBB
Build date1957 – 1967
Specifications
Configuration:
​
 • UICBo-Bo-Bo
Wheel diameter1.250 m (49.21 in)
Wheelbase13.550 m (44 ft 5.5 in) between bogie pivots
2.580 m (8 ft 5.6 in)
between axles in each bogie
Length18.250 m (59 ft 10.5 in)
Width3.013 m (9 ft 10.6 in)
Height4.296 m (14 ft 1.1 in)
Loco weight110–112 t (108–110 long tons; 121–123 short tons)
Electric system/s3,000 V DC Catenary
Current pickup(s)Pantograph
Traction motorsDC series
Transmission21/68 gear ratio
Safety systemsRSC4
Performance figures
Maximum speed120 km/h (75 mph)
Power output3,780 kW (5,070 hp)
Tractive effort286 kN (64,000 lbf)
Career
OperatorsFS Trenitalia
Number in class97
First run1958
DispositionDecommissioned in 2009
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