// Workers AI · dad joke modeWhat did GMD SW1200MG say? "I'm loco-motivated.

GMD SW1200MG
Type and origin Power type Electric Builder General Motors Diesel Serial number A1945–A1949, A2176, A2558–A2560 Model SW1200MG Build date 1963 (5), 1968 (1), 1971 (3) Total produced 9
Specifications Configuration: ​  • AAR B-B  • UIC Bo′Bo′ Electric system/s 2400 V AC 60 Hz catenary Current pickup Pantograph
Career Operators Iron Ore Company of Canada Numbers 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).

See also

• List of GMD Locomotives

External links

• technical leaflet (in french)
• IOC