© trainspo.comMR SFSM
Built by Ansaldo, MR, Sofer
Overview of the MR SFSM
Discover the SFSM EMU, a robust electric multiple unit designed for Italian railways.
This train, with a 950mm gauge, has served on the Circumvesuviana network in Italy, featuring classes like CV FE 220 and CV T 21.
Built between 1971 and 1993 by Ansaldo, MR, and Sofer, the SFSM boasts a 680 kW power output and a top speed of 90 km/h.
Its formation consists of 3 cars, providing a capacity of 124 seats and a total length of 39.56 meters.
With a weight of 56 tonnes and operating on 1.5 kV DC electric systems, the SFSM is a reliable workhorse for urban and suburban transportation.
MR SFSM technical specifications
| Value | Imperial / US | |
|---|---|---|
| Built by | Ansaldo, MR, Sofer · 1971–1993120 units | |
| Top speed | 90 km/h56 mph | |
| Power output | 680 kW912 hp | |
| Electric systems |
| |
| Track gauge | 950 mmNarrow gauge3 ft 1⅜ in | |
| Formation | 3 cars | |
| Capacity | 124 seats | |
| Train length | 39.56 m129 ft 9 in | |
| Width | 2.7 m8 ft 10 in | |
| Weight | 56 t123,459 lb |
Operators of the MR SFSM
Railway companies that have operated the SFSM, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| Circumvesuviana | CV FE 220 | Italy |
| Circumvesuviana | CV T 21 | Italy |
MR SFSM photos
Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.
Other MR models
Similar electric multiple units from other manufacturers

Jeumont-Schneider
SNCF Z 4100
Electric multiple unit
90 km/h · 560 kW

SGP
WL Type U
Electric multiple unit
1972

ABB
IM LRV
Electric multiple unit
80 km/h

Alstom
MP 89 CA
Electric multiple unit
80 km/h

Hyundai Rotem
AM Hyundai Rotem
Electric multiple unit
80 km/h

SAAS
LEB Be 4/4 I
Electric multiple unit
1966 · 80 km/h

CAF
Metro de Madrid 300
Electric multiple unit
1976–1982 · 600 kW

Ganz
BKV Ganz
Electric multiple unit
1971–1987 · 60 km/h
