Alstom Metropolis C851E (Circle Line)

The Alstom Metropolis C851E (CCL) trains are the third generation of rolling stock for the Circle Line. Twenty-three trains of three cars were purchased, housed in Kim Chuan Depot and have been in passenger service since 13 April 2026.

The C851E trains are fitted with condition monitoring systems to gather data from the equipment on the trains, enabling continuous monitoring of equipment health, allowing the operator to carry out predictive maintenance for the trains.

The current collector shoes for these trains to receive power from the third-rail electrification system are also equipped with a shear-off sensor, allowing the operator to react promptly when dislodgement is detected.

The Automatic Track Inspection (ATI) system will be fitted onto two trains, allowing concurrent monitoring of the running rails, trackside equipment and sleepers during operations.

Utilising Alstom's Urbalis 300 Communications-Based Train Control (CBTC) signalling system, these trains are capable of fully automated operations and can run without any train attendant on board.

History
Lines
Design
Technical Specs
Related Links

At a Glance

Alstom Metropolis C851E (CCL)

Circle Line

Built 2025 - Current

23 trains of 3 cars each, numbered 8065 to 8087

History

Contract 851E for the design and building of 11 new Circle Line (CCL) and six new North East Line (NEL) trains was awarded by the Land Transport Authority (LTA) to Alstom Transport SA on 30 April 2018. The initial contract tender only included 11 CCL trains, with an additional six new NEL trains then included under modified contract terms.

These trains are purchased to cater for additional capacity when the North East Line Extension (NELe) and the Circle Line 6 (CCL6) begin operations in 2024 and 2026, respectively.

The trains are manufactured and assembled in Alstom's manufacturing facility in Barcelona, Spain, and shipped progressively to Singapore. The trains will undergo testing and commissioning works before entering passenger service when the CCL6 opens, boosting the fleet size by 17 per cent from 64 to 75 trains.

The LTA announced on 25 July 2019 the purchase of an additional 12 C851E trains on top of the initial order and will be delivered progressively from 2024. The additional 12 C851E trains will boost the total fleet size of the CCL to 87 trains and will cater for the expected ridership increase when the CCL6 is fully operational.

The first train arrived in Singapore on 11 March 2022, with several trainsets to be received by the upcoming Singapore Rail Test Centre (SRTC) in early 2023. The first two of 23 C851E trains entered passenger service on 13 April 2026, with more to be progressively deployed in the lead-up to the opening of CCL6 in the first half of the year.

Lines

Circle Line

8 CC1 Dhoby Ghaut | 9 CC29 HarbourFront | 10 CE2 Marina Bay

Design

Exterior

The C851E (CCL) trains carry the standard LTA livery on its exterior: a white and black background, with the orange line colours of the CCL down the lower half of the exterior.

Interior

There are three colour schemes in the train cars, with each colour applied to one car of the train.

The reserved seats are differentiated with red colouring.

Features

Platform Gap Width Reduction

The flooring edge of each train door is fitted with a rubber gap filler to reduce the gap between the train and the station platform.

This helps to reduce the risk of passengers in wheelchairs or with strollers slipping into or getting caught in the gaps.

Reserved Seats

The reserved seats, catered for commuters with special needs, are differentiated in red.

Wheelchair Bay

Two wheelchair bays are located in the middle car of every C851E train at doors 5 and 8.

Gangway Lights

Gangway spotlights are installed to illuminate the gangway area of the train cars.

Overhead Hand Grips

Three rows of hand grips are positioned along the aisles of the train cabins to provide standing passengers with increased support.

Grab-Handles at Doorways

Provide support for passengers boarding or alighting the trains and for passengers standing near the doors.

Door Closing Indicator

Yellow alert lights that are positioned above each door will light up when the doors are closing.

Builder Plate

The builder plate lists the companies involved in the manufacture and the built-year of the train.

Dynamic Route Map Display

The Dynamic Route Map Display panels provide commuters with their route information throughout their journey.

It also indicates which side the doors will open.

Train Traveller Information System

The LED display panels of the Train Traveller Information System show useful travel information, such as transcriptions of in-train announcements.

These displays uses a lime font colour similar to the North East Line Alstom Metropolis C851E (NEL) trains, as compared to the earlier generation Circle Line trains with a red font.