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X60 (train)

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X60 (train)
NameX60
ManufacturerAlstom
FamilyCoradia
Yearservice2006
Numberbuilt83
Formation4 cars per unit
OperatorSL
DepotSödertälje / Uppsala
Width3.2 m
Maxspeed160 km/h
TractionAC electric
Electricsystem15 kV 16.7 Hz AC / 25 kV 50 Hz AC

X60 (train) is a Swedish multiple unit commuter electric train manufactured by Alstom as part of the Coradia family for regional and suburban services around Stockholm. Introduced into service in 2006, the units were procured by SL to replace aging X1 and Rc-hauled commuter sets, emphasizing improved accessibility, energy efficiency and reliability for Pendeltåg operations. The X60 program influenced later procurement decisions in Scandinavian regional rail, interacting with operators such as MTR Corporation and rolling stock strategies in Norway and Denmark.

Design and Development

The X60 project began after SL issued tenders influenced by EU procurement rules and benchmarking against manufacturers including Bombardier Transportation, Siemens Mobility, and Stadler Rail. Alstom's proposal leveraged experience from the Coradia Duplex and Coradia Nordic designs, integrating features proven on Svenska Spårvägssällskapet trials and research from institutions such as KTH Royal Institute of Technology and Trafikverket. Design priorities cited accessibility requirements from the Swedish Discrimination Act and standards set by CEN and UIC, leading to low-floor entrances, articulated bogies, and modular interiors. Prototypes underwent testing at the Västerås test centre and on the Roslagsbanan testbed before entering revenue service, with certification processes involving EBA and national safety authorities.

Technical Specifications

Each X60 unit consists of four permanently coupled cars with Jacobs bogies inspired by the Talgo articulation concept and powered by asynchronous three-phase traction motors supplied by ABB. The electrical systems are compatible with both 15 kV 16.7 Hz and 25 kV 50 Hz overhead supplies, following interoperability frameworks used on the European rail network and aligning with TEN-T corridor principles. Performance figures include a service top speed of 160 km/h, regenerative braking feeding into onboard resistors and the catenary, and a continuous power output suited to commuter duty cycles. Safety and signalling integration includes equipment for ATC, provision for ERTMS deployment, and onboard diagnostics interoperable with Trafikverket asset management systems. Bogie design draws on shear-stiffness studies from Luleå University of Technology while carbody construction uses aluminium extrusions akin to those on Bombardier Flexity trams.

Interior and Passenger Amenities

The interior layout emphasizes high-capacity commuter flow comparable to contemporary units such as Siemens Desiro and Alstom Coradia Meridien. Features include multi-zone seating dedicated to elderly and disabled passengers, spaces for prams and bicycles complying with Stockholm accessibility mandates, and bright LED lighting developed in collaboration with Philips lighting engineers. Passenger information systems integrate realtime displays and announcements interoperable with SL's central timetable managed alongside operators like MTR Stockholm and customer information frameworks used by SLL. HVAC systems are tuned for Nordic climates, drawing on climate control research from Chalmers University of Technology. Materials selection prioritized fire safety standards overseen by Boverket and maintenance regimes compatible with depots in Södertälje and Tomteboda.

Operation and Service History

X60 units entered Pendeltåg service in phases from 2006, displacing older X1 (train) sets and reshaping peak operations on corridors linking Stockholm Central Station, Uppsala, Södertälje Centrum, and Arlanda. SL's contract management, timetable planning and fleet allocation were coordinated with Trafikförvaltningen and local authorities to support suburban expansion and events at venues like Friends Arena. The fleet's reliability metrics influenced contract renewals and inspired export interest from other Nordic agencies, with comparable deployments later considered by operators in Oslo and Copenhagen. Maintenance cycles are performed at SL depots using spare parts supplied through Alstom's European logistics network and overseen per EU rolling stock directives.

Variants and Upgrades

Subsequent orders produced X60B and X60C subvariants featuring updated onboard electronics, battery-backed passenger information modules, and enhanced crashworthiness to meet revised UIC recommendations. Mid-life upgrades have included retrofit of energy-efficient HVAC components, full LED replacement, and installation of ERTMS Level 2-compatible train control equipment in coordination with national signalling rollout programs. Experimental trials have tested onboard CCTV from suppliers such as Axis Communications and predictive maintenance software linked to platforms developed by Siemens Mobility and Hitachi Rail.

Accidents and Incidents

The X60 fleet has been involved in a limited number of operational incidents recorded by Transportstyrelsen and local police, including minor collisions with vehicles at level crossings and a few service disruptions due to signalling failures on lines managed by Trafikverket. Notable investigations referenced safety protocols from Statens Haverikommission and resulted in procedural changes to driver training curricula at SL academies and updates to level crossing protection measures. No catastrophic structural failures of X60 car bodies have been reported; corrective modifications followed standard industry practices promoted by UIC and ERA.

Category:Rolling stock