MTR CNR Changchun EMU

CNR Changchun EMU (C/S-Train) C6554-07E / C6554-12E 港鐵市區綫中國製列車 港鐵南港島綫中國製列車
MTR C-train on the Kwun Tong line MTR S-train on the South Island line.
C-Train interior S-Train interior
In service	2011 – present (Kwun Tong line) 2016 – present (South Island line)
Manufacturer	CNR Changchun Railway Vehicles
Built at	Changchun, China
Family name	Urban lines: DKZ28 South Island line: DKZ50
Constructed	2010–2014
Entered service	7 December 2011; 12 years ago (2011-12-07) (Kwun Tong line) 28 December 2016; 7 years ago (2016-12-28) (South Island line)
Number built	22 trains with 8 carriages 10 trains with 3 carriages[1]
Formation	South Island line: 3 cars per trainset   Kwun Tong line: 8 cars per trainset
Capacity	2496 (8-car train)[2] 938 (3-car train)
Operators	MTR
Depots	Kowloon Bay (Kwun Tong line) Wong Chuk Hang (South Island line)
Lines served	Kwun Tong line (C-Train) South Island line (S-Train)
Specifications
Car body construction	Stainless steel
Car length	see the corresponding table
Width	Kwun Tong line: 3,120 mm (10 ft 2.83 in)   South Island line: 3,120 mm (10 ft 2.83 in)
Height	3,698 mm (12 ft 1.591 in) (without pantograph or air conditioner) 3,727.5 mm (12 ft 2.752 in) (with pantograph and air conditioner)
Floor height	1,100 mm (3 ft 7.307 in)
Doors	10 per carriage (5 doors per side)
Maximum speed	90 km/h (56 mph) (design) 80 km/h (50 mph) (service)
Axle load	17.5 t (17.2 long tons; 19.3 short tons)[2]
Traction system	2-level IGBT–VVVF   Kwun Tong line: Mitsubishi Electric   South Island line: Alstom OPTONIX MG 1500
Traction motors	3-phase AC induction motors   Kwun Tong line: 24 × Mitsubishi Electric MB-5086-A2 155 kW (208 hp)   South Island line: 12 × Alstom 4-ECA-2120 200 kW (270 hp)
Power output	Kwun Tong line: 3.72 MW (4,990 hp)   South Island line: 2.4 MW (3,200 hp)
Acceleration	Kwun Tong line: 1–1.3 m/s2 (3.3–4.3 ft/s2)   South Island line: 1.35 m/s2 (4.4 ft/s2)
Deceleration	Service: 0.8–1.35 m/s2 (2.6–4.4 ft/s2) Emergency: 1.4 m/s2 (4.6 ft/s2)
Electric system(s)	1,500 V DC overhead line
Current collector(s)	Pantograph
UIC classification	Kwun Tong line: 2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′   South Island line: Bo′Bo′+Bo′Bo′+Bo′Bo′
Bogies	CW6000D (powered), CW6000 (trailer)
Braking system(s)	Knorr-Bremse electropneumatic and regenerative   Kwun Tong line: KBGM-P   South Island line: EP2002
Safety system(s)	Kwun Tong line: Alstom SACEM fixed-block ATP and ATS, with ATO      Future: Thales SelTrac moving-block CBTC with subsystems of ATC, ATO under GoA 3 (DTO), ATP, NetTrac ATS, CBI   South Island line: Alstom Urbalis 400 moving-block CBTC with subsystems of ATC, ATO under GoA 4 (UTO), ATP, Iconis ATS, Smartlock CBI
Coupling system	BSI
Seating	Longitudinal
Track gauge	1,432 mm (4 ft 8+3⁄8 in) (Kwun Tong line to Yau Ma Tei) 1,435 mm (4 ft 8+1⁄2 in) (South Island line and Kwun Tong line extension)

The Changchun EMU or CNR Changchun EMU is an electric multiple unit train type of the Mass Transit Railway (MTR) system in Hong Kong. Designed and manufactured by Changchun Railway Vehicles, a member of CNR group (now merged with CSR to form CRRC), they were the first MTR heavy-rail stock to be manufactured in Mainland China, while past orders came from England, Japan, Europe or South Korea.

The trains come in two versions: the C-Train, a manned eight-car train which is used mainly on the Kwun Tong line;^[3] and the S-Train, a driverless three-car variant which operates on the South Island line since its opening in December 2016. Similar trains had been ordered for the Tuen Ma line, also known as TML C-Train, which entered service on the Ma On Shan line on 12 March 2017; however, these trains bear a resemblance to the older SP1900 EMUs.

Designed in 18 months, the first C-Train rolled off the production lines at CNR's plant on 6 December 2010.^[4] It was transported to Hong Kong on 28 April 2011.^[5] By 16 October, 4 sets had arrived and were undergoing testing on the Kwun Tong line, where were first expected enter service sometime in November of the same year.^{[6][7][8][9][10]}

On 22 July 2011, MTR ordered 12 eight-car C-trains to increase the urban line fleet for the West Island line extension and 10 three-car S-Trains for the first phase of the South Island line.^[1]

The first C-Train entered service on the Kwun Tong line on Wednesday, 7 December 2011 in the evening.^[11] The last of the 8-car trains was handed over on 5 September 2013, and entered service on the Kwun Tong line shortly after.^[12][13]

The S-Trains began operating on 28 December 2016, the day the South Island line commenced service.

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The trains used on the Kwun Tong line are configured as eight-car sets. All intermediate cars (B cars and C cars) have motors, while the control cars (A cars) have no motors. The C cars also come with pantographs; there are three of these cars per train set. Unlike the K-Train and CAF-Train, the C-Train reverts to the use of double-leaf sliding doors, first used on the M-Train. These trains also feature new 22-inch (559 mm) LCD TVs, like their counterparts on former KCR lines, and as a result are equipped with MTR In-Train TV, offering infotainment such as news and announcements. This will become standard for all future rolling stock ordered by the MTR.

In this configuration for the South Island line (similar to that of Alstom Metropolis), the pantograph is situated on the end cars (A car), while all three cars will have a motor each (no trailer cars). Like the converted M-Trains used on the Disneyland Resort line, these trains are fully automated, but unlike the DRL trains, the driver's cab has been replaced by extra passenger space, with an unobstructed view out the front windows (similar to that of the HKIA automated people mover). However, each train has at least one staff for patrol in the traffic hour who are able to control the train manually to comply with requirements from the Fire Services Department.^[14] The trains feature a different interior compared to the Kwun Tong Line configuration as well as a different paint scheme and headlight styling. Designed in sixteen months, all ten three-car trains are now in service.

Wikimedia Commons has media related to C-stocks_(MTR).

Wikimedia Commons has media related to S-Trains_(MTR).

• Mockup display^{[permanent dead link]}
• Latest updates on construction progress
• First production train at CNR plant
• Train connected to locomotive
• Train at Shop
• First video of propulsion capture during testing
• Another one
• https://web.archive.org/web/20140318191939/http://www.mtr-southislandline.hk/pdf/press-release/26022014_pr_e.pdf
• Motor specifications for South Island Line Rolling Stock