#5643

Sri Lanka Railways S11

🇮🇳 India ·built by Integral Coach Factory· from 2011· class of diesel multiple units

7 photos from Wikimedia Commons · credits & licences

1. Class s11: Lanil Marasinghe· CC BY-SA 3.0
2. Class S11 Accommodation: Widura Sachinthana Wijerathna· CC BY-SA 3.0
3. Class S11 Accomodation: Widura Sachinthana Wijerathna· CC BY-SA 3.0
4. Class S11 Turnover: Widura Sachinthana Wijerathna· CC BY-SA 3.0
5. SRI LANKAN RAILWAYS CLASS S11 AT GALLE SRI LANKA JAN 2013 (8492287492): calflier001· CC BY-SA 2.0
6. SRI LANKAN RAILWAYS CLASS S11 TRAIN BOUND FOR MATARA AT GALLE STATION SRI LANKA JAN 2013 (8520226243): calflier001· CC BY-SA 2.0
7. SRI LANKAN RAILWAYS CLASS S11 TRAIN AT COLOMBO FORT STATION BOUND FOR GALLE AND MATARA SRI LANKA JAN 2013 (8553390857): calflier001· CC BY-SA 2.0

what is it?

Sri Lanka Railways S11 is a class of Diesel-electric multiple unit (DEMU) train set built for Sri Lanka Railways by Integral Coach Factory, India and imported through RITES Ltd, an Indian state infrastructure corporation on a line of credit extended by the Indian Government. They were built to replace locomotive-hauled passenger trains. Twenty S11 DEMUs were ordered to strengthen long-distance travel on the Coastal Line from Colombo to Matara.

who runs it

Sri Lanka Railways

base stats

speed 100 km/htop speed
power 1 MWpower output
weight 100 tin working order
seats 429passengers
built 20made in total

Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.

fun facts

First built 15 years ago, in 2011.
1 MW is about 12 family cars (~85 kW each) flat out.
Weighs about as much as 17 African elephants (~6 t each).
21.5 m long: about 5 cars parked nose to tail.
Seats 429: 9 full city buses (~50 seats each).

multiple unit: A self-propelled train: motors are spread under the passenger cars, so no separate locomotive.

spec sheet

built: 2011
in service from: 2011
number built: 20
kind: Diesel Multiple Unit
traction: diesel
origin: 🇮🇳 India
builders: Integral Coach Factory
designer: BHEL
operators: Sri Lanka Railways
top speed: 100 km/h
power: 1 MW
gauge: 1,676 mm Indian broad gauge
wheel arrangement: Bo-Bo
formation: DPC + 3 TC + SC + DTC
length: 21.5 m
weight: 100 t
capacity: 429 passengers

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q7585956, Wikipedia: Sri Lanka Railways S11 (CC BY-SA 4.0).Updated 2026-10-25.