GMD SW1200MG

The GMD SW1200MG is a 4-axle electric locomotive built by General Motors Diesel between 1963 and 1971. The locomotive is the electric version of the diesel powered SW1200, with the prime mover replaced by a motor-generator set, hence the MG suffix in the model number.

GMD SW1200MG
Type and origin
Power typeElectric
BuilderGeneral Motors Diesel
Serial numberA1945–A1949, A2176, A2558–A2560
ModelSW1200MG
Build date1963 (5), 1968 (1), 1971 (3)
Total produced9
Specifications
Configuration:
​
 • AARB-B
 • UICBo′Bo′
Electric system/s2400 V AC 60 Hz catenary
Current pickup(s)Pantograph
Career
OperatorsIron Ore Company of Canada
Numbers431501–431509
LocaleLabrador City
DispositionStill in service

Locomotives run under 2400V 60 Hz, in automatic control without driver. The difference with SW1200 is that a single-phase electric motor is provided in place of the diesel engine, with adapted control.

Nine examples of this locomotive were built for a single Canadian customer – Iron Ore Company of Canada (IOC).[1]

See also

References
  1. "IOC GMD SW1200MG Technical Leaflet (Fr)" (PDF). epfl.ch. Retrieved 19 September 2019.


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