| Class | Livery | Producer | Prod. Code | Railways | Numeration |
| Re 4/4 II | grey | Minitrix | 12781 | BLS | 420 501 9 |
| Anno di costruzione/Year of construction: | 1967-1985 |
| Numerazione/Service numbers: | 11101-11397 |
| Rodiggio: | Bo'Bo' |
| Potenza (Kw)/Power (Kw): | 4700 |
| V max (Km/h): | 120-140 |
| Lunghezza (cm)/Lenght (cm): | 15410 |
| Stazza (T)/Weight (T): | 80 |
| Note: | Re 4/4 III is the same but v. max is 120-125. Most of this locos was modernized with new rectangular Halogen lights. Re 4/4 II ''Swiss Express'' Re 4/4 II ''TEE'' |
