Kawasaki Heavy Industries & Nippon Sharyo C751B (KNS)

The Kawasaki Heavy Industries & Nippon Sharyo C751B trains are the third generation of rolling stock for the North-South and East-West Lines.

21 trains of six cars each were purchased and have been in passenger service since 8 May 2000. The trains are housed in Bishan, Ulu Pandan, Changi and Tuas Depots.

The KNS trains are the first to have VVVF Insulated Gate Bipolar Transistor traction control system as well as a visual passenger information system installed in the cars. It also uses a radial arm axlebox, bolsterless airspring bogie.

All of the 126 KNS cars are built with no comparable differences between Kawasaki Heavy Industries & Nippon Sharyo.


At a Glance

Kawasaki Heavy Industries & Nippon Sharyo C751B

North-South Line

East-West Line

Built 1999 - 2001

21 trains of 6 cars each, numbered 311/312 to 351/352

Trains maintained by SMRT Trains


Contract 751B for the design and building of the trains was awarded to the consortium of Kawasaki Heavy Industries and Nippon Sharyo.

The KNS trains entered service on 8 May 2000 to cope with the growing demand on the North-South and East-West Lines, and to complement the Changi Airport Extension.

Refurbishment and Upgrading

Between 2014 and 2016, the KNS trains were upgraded to be equipped with Thales SelTrac Communications-Based Train Control (CBTC) signalling system under the Re-Signalling Project. With the upgrade, two seats from both ends of the train are replaced with a signalling box, housing the new signalling equipments.

Replacement of KNS trains

An initial contract for the replacement trains for the existing 66 first generation KHI C151 trains was awarded to Bombardier on 25 July 2018. The Land Transport Authority announced on 28 September 2020 that 40 additional Bombardier MOVIA trains was purchased to replace the existing 19 SIE and 21 KNS trains. These new trains uses the same design as the R151 and will arrive in batches starting from 2024.





The KNS trains carry a dark exterior livery: a dark background, with a red band down the middle, and a grey band at the bottom.

The front of the train is slanted, giving it a more streamlined look.

The train numbers are displayed on an orange LED display at the top of the right windscreen.


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

From the train ends to the middle cars, they are coloured maroon, cobalt blue, and turquoise.

The KNS trains came with more grab poles, wider seats and a wider stand back area near the doors.


Wheelchair Bay

Wheelchair Bay

The KNS trains initially came with luggage racks installed. These racks were eventually removed and the area now serves as a wheelchair bay.

The wheelchair bays are located in every train car beside the door nearest to the centre of the train.

Overhead Hand Grips

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

Grab-Handles at Doorways

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

Door Closing Indicator

Doors Closing Indicator

Four high-intensity red LED lights that are positioned at both corners of each door will light up when the doors are closing.



STARiS is installed in all KNS trains.

It provides commuters with their route information throughout their journey, and indicates which side the doors will open.

Read more >

Builder Plate

Builder Plate

The plate lists the companies involved in the manufacture of the train, and also the year it was built.

It is located at both ends of the train.

Emergency Exits

Emergency Exits

Emergency exits are located at both ends of the train.

The emergency exit ramp will be deployed in an emergency.

Emergency Communication Button

Emergency Communication Button

Emergency Communication Buttons are located at the side of the train doors to contact the train staff in an emergency.


STARiS Version 2

STARiS Version 2

3 sets of screens for STARiS Version 2 have been installed on train car 3322.

The screens have been removed in 2016.

Modification of Handrails

Modification of Handrails

Handrails were modified as a trial by LTA to encourage more commuters to move towards the centre of the car.

This programme was experimented in train car 2335.

The trial was successful and it has been rolled out to the rest of the KNS cars.

LED Lighting

LED Lighting

Energy efficient LED lights are on trial in train cars 3328 and 1328.

Technical Specifications


DT: Driving Trailer (unpowered); M1/M2: Motor car

Kawasaki Heavy Industries
Nippon Sharyo
Number Built
126 cars (21 trains)
Train Numbers
311/312 - 351/352
Car Body Construction
Aluminium-alloy double-skinned construction
Traction Control
IGBT-VVVF (Fuji Electric)
Line Voltage
750V DC (nominal) from third rail
Standard gauge (1435mm)
Maximum Speed
90km/h (design)
80km/h (service)
Train Length
139m (6 cars)
Car Length
23.83m (DT)
22.80m (M1/M2)
Train Weight
222.8t (tare condition/unladen)
320.3t (fully laden)
1.45m wide, 8 per car
Seating Capacity
272 seats