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| SL C20 | |
|---|---|
 | |
.jpg) The interior of a refurbished C20 | |
| In service | 10 May 1998 – present[1] |
| Manufacturer | Adtranz/Bombardier Transportation |
| Built at | Kalmar Verkstad,Kalmar, Sweden |
| Family name | Movia |
| Replaced | |
| Constructed | 1996–2004 |
| Refurbished | 2019–2023 atAlstomVästerås,Västmanland |
| Number built |
|
| Number in service |
|
| Formation | 3 cars (A-C-B) per unit, 2-3 units per train |
| Fleet numbers |
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| Capacity | 126 seated, 288[a] standing |
| Operators | MTR (under contract fromStorstockholms Lokaltrafik) |
| Depots | Hammarby,Högdalen,Norsborg,Nyboda, Rissne, Vällingby |
| Lines served | All Stockholm metro lines |
| Specifications | |
| Car body construction | Stainless steel |
| Train length | 46.5 m (152 ft6+45⁄64 in) |
| Width | 2.9 m (9 ft6+11⁄64 in) |
| Height | 3.68 m (12 ft7⁄8 in) |
| Platform height | 1.15 m (3 ft9+1⁄4 in) |
| Doors |
|
| Wheel diameter | 825–750 mm (32.5–29.5 in) (new–worn) |
| Maximum speed |
|
| Weight | 67 t (66 long tons; 74 short tons) |
| Traction system | |
| Traction motors | 8 ×ABB MJA 220-1 125 kW (168 hp) 3-phase AC induction motor |
| Power output | 1 MW (1,300 hp) |
| HVAC |
|
| Electric system(s) | 650–750 V DC third rail |
| Current collection | Contact shoe |
| UIC classification | Bo′+Bo′Bo′+Bo′ |
| Bogies | Bombardier FLEXX Eco 505x[5] |
| Safety system(s) | ATC/ATO |
| Coupling system | Dellner |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in)standard gauge |
TheSL C20 is a type ofsubway train used in theStockholm metro,Sweden. Between 1997 and 2004, 271 3-car sets, numbered 2000–2270, were delivered to Stockholm by the formerKalmar Verkstad, owned byAdtranz, later acquired byBombardier Transportation. The C20 is a completely new design and therefore is not compatible with other train types in the system. At46.5 metres (152 ft6+3⁄4 in), each carriage is longer than the previous train types. To save cost and weight, each unit has only fourbogies. The middle car has two bogies. The end parts consist of one bogie each and are connected to the central portion via a semi-trailer-direction. Trolley subframes are made of stainless steel, and are less susceptible to corrosion.
The first new rolling stock type for the Stockholm metro since theC14 andC15 stock from the mid-1980s, the C20 was at launch advertised as theVagn 2000 (English:Wagon 2000) and marketed as the subway car of the future, though the only customer outside of Stockholm would be theBucharest Metro, with an order for 18 MOVIA 346 trains that would be based upon the C20 in 1999, with an additional 26 units later in 2004.[6][7] All C20 coaches have been given their own names, all proposed by private individuals. Many of the names are linked to Stockholm; for example, coach no. 2012 was christenedEstelle, after the christening ofPrincess Estelle.
The C20F and the 270 3-car C20 sets underwent a mid-life refurbishment at theAlstom (formerly Bombardier Transportation) factory inVästerås,Västmanland between 2019 and 2023. During this period, the refurbished sets were referred to asC20U orC25. The refurbishment increased the standing capacity of all sets by converting one side of each car to all-longitudinal seating instead of the all-transverse seating currently in use (similar to the C1 and C30), as well as removing a portion of seats in each end of a carriage to create spaces for wheelchairs and strollers. All seat upholstery were replaced and new yellow upholstery to designatepriority seating were also introduced, and each refurbished C20 set was retrofitted with 16 CCTV cameras, an increase of 6 such cameras in each car prior to refurbishment.
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The C20F is a related prototype, built with "FICAS" technology – a highly innovative modular construction that uses a stainless steel skin bonded to a rigid composite core. This construction results in an extremely thin wall (25mm instead of the C20's 100mm), thereby creating a more spacious interior without altering the outer profile.
The C20F hasair conditioning in both the driver's cab and the passenger compartments, whereas the C20 has air conditioning in the driver's cab only. The exterior of the C20F differs by having smooth trolley sub-frames instead of the corrugated trolley sub-frames present in the C20.
The C20F car assigned set 2000 and originally christened Incognito, then rechristened Elvira on 22 May 2012, when C20 set 2012, previously christened Elvira, was rechristened the Estelle on the occasion ofPrincess Estelle's baptism.[8]
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