Milan Metro 300 series

The Milan Metro 300, 400 and 500 series, colloquially known as the Tradizionali, is a rapid transit electric multiple unit operated by Azienda Trasporti Milanesi (ATM) on the Milan Metro from 1970 to 2020.
==History==
The 300 series is the first generation of rolling stock operational on the Milan Metro's Line M2. A total of 264 cars were manufactured from 1970 to 1991 by numerous different manufacturers in nine different batches.
The trains were intended to enter service with the opening of the line in September 1969 although delivery delays forced six 100 series trains to operate on this line; the 300 series sets entered service in 1970, with all 100 series sets returned to Line M1 in November 1971. 
The last 300 series sets ran in 2020 in an attempt to lower the average age of Line M2's rolling stock.
==Design==
The 300 series is an early design of rapid transit train operated in Italy and one of the first built. These are typically formed in three car units, with two sets coupled back to back to form a six-car formation.
==Specifications==
The 300 series uses a rheostatic control system manufactured by either Ansaldo or Ercole Marelli. The fifth batch of sets experimentally use a GTO variable frequency drive provided by TIBB, Parizzi and Ansaldo; this was later changed to a drive by ABB.
Category:Electric trainsets
Category:Breda locomotives
Category:Fiat locomotives
Category:OM locomotives
Category:Socimi locomotives
Category:Stanga locomotives
Category:ATM locomotives
Category:Milan Metro locomotives