MPXpress® Commuter Locomotive
MotivePower designed the MPXpress® diesel-electric commuter locomotive to enhance the safety, performance and reliability of railway passenger systems. We have delivered or received orders for 100 MPXpress® locomotives from eight different transit agencies throughout North America since 2003, making it the proven and preferred choice for commuter rail agencies.
The MPXpress® locomotives offer significant technological improvements, including higher-horsepower engines to move more passengers within the same schedule, improved fuel efficiency, advanced emissions reduction technology and microprocessor controls. They will also meet the latest crashworthiness and safety standards recommended by the American Public Transportation Association.
Specifications:
| Model designations | MP40PH-3C: 4,000 THP, separate diesel HEP MP36PH-3C: 3,600 THP, separate diesel HEP MP36PH-3S: 3,600 THP, static inverter HEP |
| Length over coupler pulling faces | 68 feet, 0 inches |
| Height over cab and carbody | 15 feet, 6 inches |
| Width over cab handrails | 10 feet, 71/2 inches |
| Bolster centers | 42 feet, 10 inches |
| Weight on rails, fully loaded | 285,000 - 295,000 lbs |
| Starting tractive effort | 85,000 lbs. |
| Continuous tractive effort | 78,000 lbs. @ 13 mph |
| Maximum speed | 108 mph with 56:21 GR |
| Curve negotiation, single unit | 248 feet (23.1 degrees) |
| Curve negotiation w/ 85-foot car | 315 feet (18.2 degrees) |
| Prime mover | MP36: 16-645F3B MP40: 16-710G3B |
| Engine control system | MP36: Q-Tron QES-III MP40: EMD EM2000 |
| EPA emission compliance | MP36: Tier 0 through Tier 2 MP40: Tier 2 |
| Main generator (traction/companion) | MP36: AR10JBA/CA5 (reman.) MP36: MA15JBC/CA5 (new) MP40: AR15WBC/CA6A |
| Auxiliary generator | 18 kW a.c. |
| Traction motors | D87BTR, D78B or D87B dc. |
| Dynamic brake | Blended / extended |
| Trucks | 4-wheel, outside swing hanger |
| Wheelbase | 9 feet, 0 inches (reman.) 9 feet, 4 inches (new) |
| Wheel diameter | 40 inches |
| Braking system | Wabtec 26LUL / blended Wabtec electronic / blended |
| Air compressor | WLN-A9 |
| Hand brake | Wheel Electric |
| Fuel capacity | 2,000-2,500 gallons |
| Sand capacity; front/rear | 10/10 cubic feet |
| Head end power system | Separate diesel engine Static inverter |
| Head end power output | 400 - 800 kW |
Download a printable version of the MotivePower MPXpress brochure.
