SJ Dm3

Specifications
Specifications
Configuration:;
• UIC	1′D+D1′ (Dm); 1′D+D+D1′ (Dm3)
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Wheel diameter	1,530 mm (5 ft 0.24 in)
Length	25,100 mm (82 ft 4+1⁄4 in) (Dm); 35,250 mm (115 ft 7+3⁄4 in) (Dm3)
Loco weight	190 t (187.0 long tons; 209.4 short tons); 273.2 t (268.9 long tons; 301.2 short tons)
Electric system/s	15 kV 16.7 Hz AC catenary
Current pickup(s)	Pantograph

Type and origin
Type and origin
Power type	Electric
Builder	ASEA
Build date	1954-1971
Total produced	97; 20 Dm+Dm; 19 Dm+Dm3+Dm

Dm
Dm
	A Dm3 in MTAB colors at Abisko Östra
Power type
Type and origin
Power type	Electric
Builder	ASEA
Build date	1954-1971
Total produced	97; 20 Dm+Dm; 19 Dm+Dm3+Dm
Configuration:;
Specifications
Configuration:;
• UIC	1′D+D1′ (Dm); 1′D+D+D1′ (Dm3)
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Wheel diameter	1,530 mm (5 ft 0.24 in)
Length	25,100 mm (82 ft 4+1⁄4 in) (Dm); 35,250 mm (115 ft 7+3⁄4 in) (Dm3)
Loco weight	190 t (187.0 long tons; 209.4 short tons); 273.2 t (268.9 long tons; 301.2 short tons)
Electric system/s	15 kV 16.7 Hz AC catenary
Current pickup(s)	Pantograph
Maximum speed
Performance figures
Maximum speed	75 km/h (47 mph)
Power output	4,800 kW (6,400 hp) (Dm); 7,200 kW (9,700 hp) (Dm3)
Tractive effort	940 kN (210,000 lbf) (Dm3)
Disposition
Career
Disposition	Replaced by IORE from 2010s

Dm and Dm3 is a series of locomotives used by Swedish State Railways (Swedish: Statens Järnvägar, SJ) and later Malmtafik i Kiruna (MTAS) for pulling iron ore trains on the Iron Ore Line in Sweden and Ofoten Line in Norway. A total of 39 double-locomotives (Dm) were delivered between 1954 and 1971, built by ASEA. A further 19 center locomotives (Dm3) were later delivered. Norwegian State Railways also operated 12 similar locomotives, designated NSB El 12. The Dm is a articulated, freight-optimized version of the Da-locomotive.

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