For ac drive mine trucks in the 260 to 400-ton range. Driven by 2000 to 4000 hp diesel engine. They have the following specifications:
| Vac: | 1500 to 2000 |
| kVA: | 1800 to 2700 |
| Frequency: | 120 Hz |
| RPM: | 1800 nominal |
Kato Engineering has almost 30 years of experience in supplying traction power for mine-haul trucks. These trucks are used in some of the harshest environments all over the globe.