About Us 

Mitsubishi Electric Power Products, Inc (MEPPI) Transportation System Division (TSD) offers a wide range of transit industry products and services for rolling stock applications for passenger rail and freight locomotives.  Our equipment is some of the most reliable in the transit industry.  MEPPI’s product portfolio includes:  
​On-Board Wayside​​
  • ​Propulsion Systems
  • ​Wayside Monitoring Diagnostic System (WMDS)
  • ​HVAC
  • ​Station Vision
  • ​Central Diagnostic Systems (CDS) or TMS
  • ​Station Engergy Saving Inverter (SEIV)
  • ​Auxiliary Power Systems
  • ​Solid State Interlocking (SSI)
  • ​Train Vision
  • ​Operation Control Center (OCC)
  • ​Passenger Information Systems (PIS)
  • ​CBTC
  • ​CBTC
MEPPI’s Transportation System Division operates North American manufacturing and testing facilities for Propulsion, On- Board power supply systems and HVAC that are specifically designed for the North American transit industry.  Our North American manufacturing facilities are ISO 9001 certified and combine Mitsubishi Electric’s successful manufacturing principles along with the economic benefits of local sourcing of components to meet our strict manufacturing standards.  These benefits also ensure our adherence to Buy America (BAA) and Disadvantaged Business Enterprise (DBE/WBE/MBE) requirements.
Mitsubishi Electric boasts a worldwide supply record spanning over fifty (50) years, across twenty-six (26) countries and over 29,000 vehicles.  Our rolling stock products are of highest quality and and exceed all transit industry requirement in reliability and performance metrics.


Click here to return to the home page.


TSD Quality department is committed to provide products and services to meet customer requirements and exceed expectations through superior quality and continuous improvement. Its primary responsibilities are:
  1. Quality System Maintenance
  2. Documentation Management
  3. Inspections
  4. Returned Product Processing
  5. Supplier Quality Management
  6. Equipment Calibration
  7. Support to MELCO


 Click here​ to return to the home page.


The MEPPI Program Management organization consists of experienced and skilled Program Management professionals including several PMI certified PMs.  MEPPI’s PM organization manages projects ranging from full turn-key solutions to standard product applications domestically and internationally.
Our PM organization is responsible for the life cycle a contract from kick-off through the end of warranty encompassing key phases of design and production.  The organization is supported by a team of contract administrators, schedulers, and technical writers needed for successful project execution.  As part of the MEPPI’s PM organization, our Field Service team of qualified engineers and technicians are strategically located to provide continuous customer support through the end of warranty and beyond.

Click here​ to return to the home page.



TSD P&C operates a climate-controlled 45,000 ft2 factory facility. 
Assembly is performed in dedicated work cells utilizing a mix of standard, specialized, and automated tools.  A separate, contained area is dedicated to the diagnosis and repair of items returned from the field.  
State of the art testing equipment is well-equipped to execute a variety of electrical and electromechanical testing using power from standard wall (120V) up to  4160V, 1200A 3 phase. Some test areas are readily reconfigurable to accommodate changing input and load requirements.  There is also access (shared) to a water spray test room in an adjacent TSD division factory.
Overhead cranes, leveler and grade docs allow for receiving, loading, and handling of large items up to 5 tons.

Click here​ to return to the home page.​​​