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Specifications
Specifications
Configuration:;
• AAR	B-B
• UIC	Bo'Bo'
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Length	15.47 m (50 ft 9 in)
Loco weight	82 tonnes (81 long tons; 90 short tons)
Electric system/s	25 kV 50 Hz AC Catenary
Current pickup(s)	Pantograph

Type and origin
Type and origin
Power type	Electric
Designer	ASEA
Builder	Končar
Build date	1967 (used by TCDD since 1998)
Total produced	22 (rented by TCDD)

TCDD E52500
TCDD E52500
	TCDD E52522 at Haydarpaşa
Power type
Type and origin
Power type	Electric
Designer	ASEA
Builder	Končar
Build date	1967 (used by TCDD since 1998)
Total produced	22 (rented by TCDD)
Configuration:;
Specifications
Configuration:;
• AAR	B-B
• UIC	Bo'Bo'
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Length	15.47 m (50 ft 9 in)
Loco weight	82 tonnes (81 long tons; 90 short tons)
Electric system/s	25 kV 50 Hz AC Catenary
Current pickup(s)	Pantograph
Maximum speed
Performance figures
Maximum speed	120–160 km/h (70–100 mph)
Power output	3,860 kW (5,180 hp)
Tractive effort	275 kN (62,000 lbf)
Operators
Career
Operators	Turkish State Railways
Numbers	E52501 – E52522

TCDD E52500 is a series of electric locomotives used by the Turkish State Railways, comprising 22 class 441-9 locomotives leased from Željeznice Federacije Bosne i Hercegovine in Bosnia-Herzegovina. They are used throughout the electrified parts of the Turkish rail network. The locomotives have a power output of 3,860 kW and are capable of 120, 140 or 160 km/h speed depending on the version.

The locomotives were originally built from 1967 onwards^[1] for Yugoslav Railways by ASEA of Sweden and Končar in Croatia, then part of Yugoslavia. They were based on ASEA's Rb design for Swedish Railways.

The first fifteen locomotives were delivered to TCDD in 1998, followed by five more in 1999 and two in 2004 and 2005 respectively. They have been modernised by having the diodes replaced with thyristor rectifiers, making them similar to the Rc, the thyristor-based successor to the Rb.

Two units were scrapped after the Tavşancıl accident in 2004. The two replacement units delivered in 2004-05 have higher top speeds that the other units, who could only run at 140 km/h.

These locomotives were withdrawn from TCDD on April 3, 2011 upon finish of the lease contract. The last 8 sets were taken out from the fleet in 2014.^[2]