| DBAG Baureihe 490 | |
| Operator: | S-Bahn Hamburg |
| Yearconstruction: | 2013– |
| Manufacturer: | Bombardier/Alstom |
| Uicclass: | 2′Bo′+Bo′Bo′+Bo′2′ |
| Maxspeed: | 100km/h/140km/h |
| Trainlength: | 66frac=16NaNfrac=16 |
| Weight: | 122t 130t |
| Safety: | Sifa, PZB |
| Brakes: | Electric, Air |
| Electricsystem: | 1200 V DC third rail overhead lines |
| Collectionmethod: | Contact shoe (DC) Pantograph (AC) |
| Poweroutput: | 1.6MW |
The DBAG Class 490 is a three-car dual-voltage electric multiple unit train for the Hamburg S-Bahn. It was manufactured jointly by Bombardier Transportation and Alstom in 2013.
A single unit consists of 3 cars with the outer two having cabs. Trains can operate on the 1200 V side contact third rail and 15 kV overhead wires. It is currently the only train on the Hamburg S-Bahn to have air conditioning.