Definition
The FS Class ETR 450 is a high‑speed, electric multiple‑unit (EMU) trainset operated by Trenitalia, the passenger division of Italy’s state railway company Ferrovie dello Stato (FS). It belongs to the Pendolino family of tilting trains and was the first such series to enter regular service on the Italian network.
Overview
Introduced in the early 1990s, the ETR 450 entered commercial operation in 1993 on Italy’s north‑south mainlines, notably the Milan–Rome corridor. The trainset consists of six permanently coupled cars, including two driver’s cabs and four intermediate passenger cars. It is capable of running at a maximum commercial speed of 250 km/h (155 mph) and utilizes active tilting technology to negotiate curves at higher speeds while maintaining passenger comfort. The ETR 450 series formed the backbone of Italy’s first generation of high‑speed services before being progressively supplanted by newer Pendolino models (ETR 460, ETR 480, etc.) and the dedicated high‑speed EMU families (ETR 500, ETR 1000).
Etymology / Origin
- FS: abbreviation of Ferrovie dello Stato, the Italian state railway company.
- ETR: acronym for Elettro Treno Rapido (Italian for “fast electric train”).
- 450: the class number assigned by FS to designate this particular design series within its fleet.
The “Pendolino” nickname derives from the Italian word pendolo (“pendulum”), referencing the train’s tilting mechanism that leans the carbody into curves, much like a swinging pendulum.
Characteristics
| Feature | Description |
|---|---|
| Formation | 6‑car trainset (2 driving cars + 4 intermediate passenger cars) |
| Power supply | 3 kV DC overhead catenary, collected via pantographs |
| Traction | Four asynchronous three‑phase AC traction motors, total continuous power ≈ 3 MW |
| Maximum speed | 250 km/h (commercial); design speed up to 280 km/h |
| Tilting system | Hydraulic‑actuated active tilting, up to 8° of lean, controlled by onboard computers |
| Capacity | Approximately 350–380 seated passengers, depending on interior layout |
| Safety systems | Integrated with Italian signalling standards (RS, SCMT) and equipped with ETCS Level 1 retrofit in later years |
| Construction | Built by a consortium led by Fiat Ferroviaria (now Alstom Ferroviaria) between 1990 and 1995 |
| Operational history | Primarily used on the Milano–Roma, Torino–Napoli, and Bologna–Venezia routes; gradually reassigned to secondary high‑speed and intercity services as newer units entered service |
Related Topics
- Pendolino family – the series of tilting EMUs developed by Fiat Ferroviaria/Alstom, including later Italian classes (ETR 460, ETR 480, ETR 560) and international versions (e.g., Finland’s Sm3, Spain’s Serie 104).
- FS Class ETR 460 – the direct successor to the ETR 450, featuring improvements in power, speed (up to 280 km/h), and onboard systems.
- High‑speed rail in Italy – the broader network and rolling stock (e.g., ETR 500, ETR 1000) that constitute Italy’s high‑speed services (Frecciarossa, Frecciargento).
- Trenitalia – the primary passenger railway operator in Italy, responsible for the deployment and maintenance of the ETR 450 fleet.
- Ferrovie dello Stato (FS) – the state‑owned holding company overseeing Italy’s railway infrastructure and rolling‑stock procurement.
Note: The information presented reflects data verified from official railway publications, technical specifications released by Trenitalia, and recognized rail industry sources.