FS Class E.646

Specifications
Specifications
Configuration:;
• UIC	Bo-Bo-Bo
Wheel diameter	1.250 m (49.21 in)
Wheelbase	13.550 m (44 ft 5+1⁄2 in); between bogie pivots; 2.850 m (9 ft 4+1⁄4 in); between axles on each bogie
Length	18.290 m (60 ft 1⁄8 in)
Width	3.013 m (9 ft 10+5⁄8 in)
Height	4.296 m (14 ft 1+1⁄8 in)
Loco weight	110–112 t (108–110 long tons; 121–123 short tons)
Electric system/s	3,000 V DC Catenary
Current pickup(s)	Pantograph
Traction motors	DC
Transmission	25/64 gear ratio
Loco brake	Oerlikon FV4
Safety systems	RSC4; some units (about 40) have also been fitted with SCMT

Type and origin
Type and origin
Power type	Electric
Builder	TIBB
Build date	1958-1967

FS class E.646
FS class E.646
	E.646 in original livery
Power type
Type and origin
Power type	Electric
Builder	TIBB
Build date	1958-1967
Configuration:;
Specifications
Configuration:;
• UIC	Bo-Bo-Bo
Wheel diameter	1.250 m (49.21 in)
Wheelbase	13.550 m (44 ft 5+1⁄2 in); between bogie pivots; 2.850 m (9 ft 4+1⁄4 in); between axles on each bogie
Length	18.290 m (60 ft 1⁄8 in)
Width	3.013 m (9 ft 10+5⁄8 in)
Height	4.296 m (14 ft 1+1⁄8 in)
Loco weight	110–112 t (108–110 long tons; 121–123 short tons)
Electric system/s	3,000 V DC Catenary
Current pickup(s)	Pantograph
Traction motors	DC
Transmission	25/64 gear ratio
Loco brake	Oerlikon FV4
Safety systems	RSC4; some units (about 40) have also been fitted with SCMT
Maximum speed
Performance figures
Maximum speed	140 km/h (87 mph)
Power output	hourly: 4,320 kW (5,790 hp) - continuous: 3,780 kW (5,070 hp)
Tractive effort	233 kN (52,000 lbf)
Operators
Career
Operators	FS Trenitalia
Number in class	198
First run	1958
Disposition	Decommissioned in 2009

FS class E.645

Type and origin
Power type	Electric
Builder	TIBB
Build date	1957 – 1967

Specifications
Configuration:
• UIC	Bo-Bo-Bo
Wheel diameter	1.250 m (49.21 in)
Wheelbase	13.550 m (44 ft 5.5 in) between bogie pivots 2.580 m (8 ft 5.6 in) between axles in each bogie
Length	18.250 m (59 ft 10.5 in)
Width	3.013 m (9 ft 10.6 in)
Height	4.296 m (14 ft 1.1 in)
Loco weight	110–112 t (108–110 long tons; 121–123 short tons)
Electric system/s	3,000 V DC Catenary
Current pickup(s)	Pantograph
Traction motors	DC series
Transmission	21/68 gear ratio
Safety systems	RSC4

Performance figures
Maximum speed	120 km/h (75 mph)
Power output	3,780 kW (5,070 hp)
Tractive effort	286 kN (64,000 lb_f)

Career
Operators	FS Trenitalia
Number in class	97
First run	1958
Disposition	Decommissioned in 2009

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.