GMD SW1200MG | |
Powertype: | Electric |
Builder: | General Motors Diesel |
Serialnumber: | A1945–A1949, A2176, A2558–A2560 |
Buildmodel: | SW1200MG |
Builddate: | 1963 (5), 1968 (1), 1971 (3) |
Totalproduction: | 9 |
Aarwheels: | B-B |
Uicclass: | Bo′Bo′ |
Electricsystem: | 2400 V AC 60 Hz catenary |
Collectionmethod: | Pantograph |
Operator: | Iron Ore Company of Canada |
Fleetnumbers: | 431501–431509 |
Locale: | Labrador City |
Disposition: | Still in service |
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.
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]