| X 2000 | |
|---|---|
 Refurbished X2 train at Stockholm Central Station | |
| Manufacturer | ABB, Adtranz and Kalmar Verkstad |
| Built at | Västerås (ABB, electrical part), Kalmar (mechanical part) |
| Constructed | 1989–1998 |
| Entered service | 4 September 1990–present |
| Refurbished | 2003–2007; 2019– [1] |
| Number built | 44 |
| Formation | 1 power car + 4 or 5 intermediate coaches + 1 control coach |
| Fleet numbers | SJ: 2001–2043, Xinshisu: 2088 |
| Capacity |
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| Operators | SJ |
| Depots | |
| Lines served |
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| Specifications | |
| Car body construction | Corrugated stainless steel |
| Train length |
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| Car length |
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| Width | 3.05 m (10 ft 0 in) |
| Height | 3.814 m (12 ft 6+1⁄8 in) |
| Floor height | Coach: 1.26 m (49+5⁄8 in) |
| Wheel diameter |
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| Wheelbase |
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| Maximum speed |
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| Weight |
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| Axle load | 17.5 t (17.2 long tons; 19.3 short tons) |
| Power output | 3,260 kW (4,370 hp) |
| Tractive effort |
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| Electric system(s) | 15 kV 16.7 Hz AC + 25 kV 50 Hz AC catenary |
| Current collector(s) | Pantograph |
| UIC classification | Bo′Bo′+2′2′+2′2′+2′2′+2′2′(+2′2′)+2′2′ |
| Braking system(s) |
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| Safety system(s) | ATC-2, ZUB 123 |
| Coupling system | Automatic (which type?) |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
X 2000, also called SJ X2 or simply X2, is an electric high-speed tilting train operated by SJ in Sweden. It was constructed by Kalmar Verkstad in Kalmar, Sweden (prior to the company being bought by Adtranz in 1996) and launched in 1990 as a first-class only train with a meal included in the ticket price, and free use of the train's fax machine. There is a bistro on board that serves snack bar-style dishes. From 1995 second class was introduced. All trains are equipped with Wi-Fi for passenger access to the Internet and were repainted grey as of 2005. The trains also have electric power supply sockets at all seats in both first and second class. The trains have been fitted with repeaters to improve mobile phone reception.
It has a top commercial speed of 200 km/h (125 mph), but has reached 276 km/h (171 mph) in a test. The reason the X2 was chosen was that Sweden (like most other countries) has very curved railways, and not enough traffic to justify building special high-speed railway lines (at least before 1990). As a result, a Swedish tilting train had to be developed. A tilting train provided the advantages of high speed and comfort for the passengers, as tilting trains can run through sharp (short radius or tight) curves up to 15% faster than non-tilting trains. The X2 was designed and built by ABB. SJ ordered 20 sets in August 1986 and planned to order a further 30. In the end 43 sets were built for SJ while one was built for the Guangshen Railway Company, China.