Sri Lanka Railways S13

Sri Lanka Railways S13 is a class of Diesel-Electric Multiple Unit (DEMU) train set built for Sri Lanka Railways by the Integral Coach Factory, Chennai and imported through RITES, an Indian Railways PSU on a line of credit extended by the Indian Government in 2011.^[1]

Sri Lanka Railways S13
S13 power set No. 959
S13A power set No. 994
Stock type	Diesel-Electric Multiple Unit
Manufacturer	Integral Coach Factory
Designer	Medha Servo Drives Pvt. Ltd.
Assembly	Chennai, India
Constructed	2017-2019 (S13) 2019-2021 (S13A)
Entered service	2018 (S13) 2021 (S13A)
Number built	6 train sets (S13) 2 train sets (S13A)
Fleet numbers	959–970 (S13) 993–996 (S13A)
Capacity	AC 1st Class (AFC): 52 seats 2nd Class (SC): 64 seats 3rd Class (TC): 94/60 seats (Trailer Coach/Driving Trailer Coach)
Operators	Sri Lanka Railways
Specifications
Car body construction	Stainless steel
Car length	20,000 millimetres (66 ft)
Width	2,930 millimetres (9.61 ft)
Height	2,674 millimetres (8.773 ft)
Wheel diameter	952 mm
Maximum speed	120 kilometres per hour (75 mph)
Steep gradient	1:80
Prime mover(s)	Cummins QSK50
Power output	1800 Hp
Transmission	Diesel-electric, Three-Phase AC
Bogies	ICF Bogies with secondary stage Air Suspension
Minimum turning radius	150 m
Braking system(s)	Air, Dynamic
Safety system(s)	Fire detection, alarm and suppression system
Coupling system	Schaku Semi-Permanent Coupler
Headlight type	LED
Track gauge	1,676 mm (5 ft 6 in)

History

Sri Lanka Railways ordered 6 modern state-of-the-art DEMU train sets in 2017.^[2][3][4] The Class S13 possesses AC First, Second and Third Class accommodations. The first train set of the order arrived in Sri Lanka in December 2018.^[5]

Later in 2019, Sri Lanka Railways ordered another two fully Air-conditioned DEMU train sets designated as the Class S13A.^[6] Unlike the S13, the S13A has a Restaurant Car. The first train set of the Class S13A arrived Sri Lanka in November 2021.

Formations

Formations

Sub Class	Formation	Total Car Number in Formation
S13	DPC ‐ 5 TC - 2 DTC - 4 TC - DPC	13
	DPC - 4 TC - DTC	6
	DPC - 5 TC - DTC	7
	DPC - 6 TC - DTC	8
S13A	DPC - 5 AFC - RCV - 5 AFC - DPC	13

Key

Abbreviation	Explanation
DPC	Driving Power Car (It is a single-ended locomotive without passenger seating area)
DTC	Driving Trailer Car
TC	Trailer Coach (This could refer to any of the three classes of accommodation; the coach composition keeps changing according to demand)
AFC	Air-conditioned First Class
RCV	Restaurant cum Guard Coach

Operations

Line	Service Name	Starting Station	Key Stations	Terminus Station	Notes
Northern Line	Uttara Devi	Colombo Fort	Anuradhpura Jaffna	Kankesanthurai
	KKS Intercity
	KKS Night Intercity				Operated only on Weekends
			Anuradhapura	Mannar
Eastern Line	Pulathisi Intercity Express	Colombo Fort	Polonnaruwa	Batticaloa
			Gal Oya	Trincomalee
Coastal Line	Galu Kumari	Maradana	Galle	Matara
	Ruhunu Kumari		Galle Matara	Beliatta
Puttalam Line		Colombo Fort		Puttalam

Seating gallery

• 
  AC First Class (52 seats)
• 
  Second Class (64 seats)
• 
  Third Class (94 seats; 60 seats inside DTC)