SL X1

X1
X1 at Årstaberg station
In service1968–2011
ManufacturersASEA, Kalmar Verkstad, ASJ
Constructed1967–1975
Entered service1968–2011
Scrapped2004–2011
Number built104
Number scrapped103
Capacity196
OperatorsStorstockholms Lokaltrafik
Citypendeln
Stockholmståg
MTR Nordic
Line servedStockholm commuter rail
Specifications
Train length49.55 m (162 ft 7 in) (2 cars)
Width3,150 mm (124 in)
Platform height760 mm
Maximum speed222 km/h (138 mph) (albeit affectively 120 km/h (75 mph))
Weight78 t (76.8 long tons; 86.0 short tons)
Power output1,120 kW (1,500 hp)
Electric system15 kV  16.7 Hz AC catenary
Current collectionPantograph
Braking systemdisk brakes
Track gauge1,435 mm (4 ft 8+12 in)
Notes/references
2 cars
fleet numbers 3001-3004

X1 was a series of two-car electric multiple units (twin units) owned by Greater Stockholm Transport (SL) on the Stockholm commuter rail. The X1 was operated in sets of up to five units, making ten-car trains, each unit consisting of one motor car and one unpowered car. 104 units were built by ASEA in 1967–75 and were replaced by the new X60. The X1 also served as the foundation for the later X10–X14 series trains, built in the 1980s and 1990s.