CP Class 2240

File:Série 2240 na Estação Ferroviária de Castelo Branco (30638777924).jpg

The CP 2240-class is an electric multiple unit used by the national train operator Comboios de Portugal. Each EMU features 3 cars, with the ends being driving trailers, and the middle being a power car (which houses the traction motors).{{Cite web|title=Série 2240 - Ficha Técnica|url=https://www.trainlogistic.com/pt/Comboios/Gabinete/fich_atm2240.htm|access-date=2021-08-01|website=www.trainlogistic.com}}

The units were assembled between 2003 and 2005, by Alstom, reusing the old Sorefame body shells belonging to the 2100, 2150 and 2200-class EMU's, to keep cost down and avoid fully scrapping old rolling stock. The bogies were custom-built with new Alstom traction motors,{{Cite news|date=September 2018|title=40 Anos de Políticas Ferroviárias em Portugal|page=19|work=Trainspotter Magazine (97th Edition)|publisher=Portugal Ferroviário}} and are in the 1668mm Iberian gauge.

They are able to operate in multiple configuration with up to 3 units, for a total of 9 passenger cars.