SJ X16

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X16/X17
In service	1955 - 1980s
Manufacturer	Svenska Järnvägsverkstäderna ASEA
Constructed	1955-1956
Number built	18 (X16) 12 (X17)
Fleet numbers	958-975 (X16) 976-987 (X17)
Capacity	55 (X16) 49 (X17)
Operators	Statens Järnvägar
Specifications
Car length	17,550 mm (57 ft 6.9 in)
Maximum speed	110 km/h (68 mph)
Weight	21 tonnes (20.7 long tons; 23.1 short tons)
Power output	170 kW (230 hp)
Electric system(s)	15 kV  16.7 Hz AC catenary
Current collector(s)	Pantograph
Track gauge	1,435 mm (4 ft 8+1⁄2 in)

X16 and X17 was a series of electric railcars operated by Statens Järnvägar (SJ) of Sweden. They were built by Svenska Järnvägsverkstäderna and ASEA in 1955-1956 and delivered as 30 units. They are the electrical counterpart of Y6 and Y7 railcars. The units were mostly in service in Svealand, and later around Gävle and in Värmland in the 1980s. The X17 differed in having four-a-breast seating, instead of five.