UTE-3600 Series
- Fleet: 21 units.
- Distribution: 11 Asturias, 10 Vizcaya.
- Unit type: CM-CM electric unit with 2 ICT-type three-phase asynchronous traction motors.
- Maximum speed: 100 km/h.
- Seated capacity: 99 passengers.
- Total capacity: 244 passengers.
- Services offered: Suburban in Asturias and Vizcaya.