- Configuration: 3 Cars, Articulated
- Seats: 48
- Standing Capacity (Train Comfort Load): 232
- Doors Per Side: 2/Car
- Maximum Length: 39000 mm
- Maximum Width: 2650 mm
- Maximum Speed: 100 km/h
- Power Supply: 750 Vcc Third Rail
- Rail Gauge: 1435 mm
- Body Material: Aluminium
The system, which has a total journey length of less than 30 minutes, allows passengers to interchange with the existing M1-M2 lines at two stations. The 39 driverless metro trains, signalling and turnkey systems for the M3 line are all manufactured/delivered by Hitachi Rail in Italy.
The metro project contract - commissioned by Metroselskabet, the public entity responsible for the metro network - was signed in January 2011, with trains going into service in September 2019. In 2023, the service serviced over 4.4 million passengers per month, on average.
The trains have state-of-the-art technology offering safety and reliability, and the seating arrangement has been designed to increase transport capacity, in line with the needs of the service.
34 Hitachi Rail driverless metros have also been in service on the M1/M2 lines in Copenhagen since 2002.

