X3 (train)

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Arlanda Express X3.JPG
Manufacturer Alstom
Constructed 1998–99
Entered service 1998
Number built 7
Fleet numbers 1–7
Operator Arlanda Express
Maximum speed 205 km/h (127 mph)
Weight 187 t (184 long tons; 206 short tons)
Power output 2,240 kW (3,000 hp)
Electric system(s) 15 kV 16⅔ Hz AC Catenary
Current collection method Pantograph
Track gauge 1,435 mm (4 ft 8 12 in) standard gauge

X3 is an electric multiple unit train used by Arlanda Express on the airport rail link service between Stockholm Central Station and Stockholm-Arlanda Airport in Sweden. Alstom built seven of these four-train car units in Birmingham, which were delivered in 1998 and 1999. The X3 is part of the Coradia family, and can reach speeds up to 205 km/h.


The trains are painted grey with yellow ends with varying interior colors. The units use standard gauge tracks and are fed electricity at 15 kV 16⅔ Hz AC like the rest of the Swedish railway network, but the trains use separate stations at Arlanda and dedicated tracks at Stockholm C; in both cases, the platforms are higher than at other stations in Sweden, allowing step-free access to the trains without the use of low floors.

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