The TCDD E8000 is a three-car electric multiple unit operated by the Turkish State Railways (TCDD) on the Istanbul suburban service. They were some of the first electric trains using the newly developed 25 kV 50 Hz AC power system.^[1]

This article relies largely or entirely on a single source. (July 2018)

Quick Facts In service, Manufacturer ...

TCDD E8000
TCDD E8000 unit E8030 at Istanbul Sirkeci station in February 2008
In service	1955–2011
Manufacturer	Alstom Jeumont De Dietrich Ferroviaire
Number built	28 units
Successor	TCDD E32000
Formation	3 cars
Operators	Turkish State Railways
Lines served	Istanbul suburban
Specifications
Train length	68,000 mm (223 ft 1 in)
Maximum speed	90 km/h (56 mph)
Weight	120 t (120 long tons; 130 short tons)
Axle load	17.5 t (17.2 long tons; 19.3 short tons)
Power output	1,100 kW (1,475 hp)
Electric system(s)	25 kV 50 Hz AC
Track gauge	1,435 mm (4 ft 8+1⁄2 in)

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The trains are equipped with conventional transformers and camshaft-controlled step switches, with a power output of 1,100 kW (1,475 hp) and a maximum speed of 90 km/h (56 mph).^[1]

A total of 28 TCDD E8000s were built by French manufacturers Alstom, Jeumont and De Dietrich Ferroviaire, with deliveries beginning in 1955.^[1] They were used on the newly electrified European commuter train service in Istanbul. After the Asian side electrification, the trains also served there.^{[citation needed]} They were lengthened to four cars with locally manufactured intermediate cars, which were later withdrawn.^[1]

The original livery was dark-red and white. On 1 September 2010 the arrival of new trains was cut in 2011 after waiting for 6 months.^{[citation needed]}