| SP1900 EMU (IKK Train) SP1900 / SP1950 / KRS991 / 1151 港鐵近畿川崎列車 | |
|---|---|
 A MTR Tuen Ma line SP1900 approaching Hin Keng | |
 The interior of a Tuen Ma line SP1900 EMU | |
| In service | 2001–present |
| Manufacturer | Kinki Sharyo & Kawasaki |
| Order no. | SP1900, SP1950, KRS991, 1151 |
| Built at | Kobe, Hyōgo Prefecture, Japan |
| Constructed | 1999–2000 (East Rail line) 2002–2003, 2007 (West Rail line newly-built) 2015, 2016, 2017 (Refurbished West Rail line sets) 2003-2004 (Ma On Shan line) |
| Entered service | 2001 (East Rail line) 2003, 2008, 2016–2018 (West Rail line after refurbishment) 2004, 2017–2018 (Tuen Ma line after refurbishment) |
| Refurbished | 2015–2023 |
| Number built | 392 cars |
| Number in service | 48 sets (384 cars) |
| Number retired | 8 cars (driving trailer cars unable to be formed as a complete train) |
| Formation | 8 cars per trainset Formerly: 12 cars per trainset (East Rail line) 7 cars per trainset (West Rail line) 4 cars per trainset (Ma On Shan line) |
| Fleet numbers | D301-396 |
| Capacity |
|
| Owners | Kowloon-Canton Railway Corporation |
| Operators | KCR (2001–2007) MTR (2007–present) (Still owned by the KCR Corporation). |
| Depots | Pat Heung, Tai Wai (SP1950 trains only) |
| Lines served | |
| Specifications | |
| Car body construction | Stainless steel |
| Train length |
|
| Car length |
|
| Width | 3.1 m (10 ft 2.05 in) |
| Height | 3.99 m (13 ft 1.09 in) (without roof equipment) |
| Floor height | 1.07 m (3 ft 6.1 in) (ever-so-slightly higher than MLR) (Under the Wires to Lo Wu, The Railway Magazine, November 1983) |
| Platform height | 1,066.8 mm (3 ft 6.0 in) (Under the Wires to Lo Wu, The Railway Magazine, November 1983) |
| Doors | 5 (Standard compartment) |
| Maximum speed |
|
| Weight | 37 t (36.4 long tons; 40.8 short tons) |
| Traction system | Mitsubishi Electric MAP-242-A25V93/93A 2-level IGBT–C/I |
| Traction motors | 16 × Mitsubishi MB-5084-A/A2 240 kW (321.8 hp) 3-phase AC induction motor |
| Power output | 3.84 MW (5,149.5 hp) |
| Acceleration | 1 m/s2 (3.3 ft/s2) |
| Deceleration |
|
| Power supply | Mitsubishi Electric ATM5 Transformer, 2610 KVA Capacity, PWM 2-Level control, forced air cooling system |
| Electric system(s) | 25 kV 50 Hz AC overhead catenary |
| Current collector(s) | Pantograph |
| UIC classification | 2′2′+Bo′Bo′+Bo′Bo′+2′2′+2′2′+Bo′Bo′+Bo′Bo′+2′2′ |
| Bogies | KD312 / KW165 (powered), KD312A / KW166 (trailer) |
| Braking system(s) | Knorr-Bremse electropneumatic and regenerative |
| Safety system(s) | SelTrac |
| Coupling system | Tightlock |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Notes/references | |
| Door centres: 3,800 mm (12 ft 5.606 in) Door width: 1,400 mm (4 ft 7.118 in) | |
The SP1900 EMU / SP1950 EMU or IKK Train (formerly KCR EMU SP1900 / SP1950 EMU; 港鐵近畿川崎列車, also known as the Millennium Train during the public promotion) is a model of train that runs on Hong Kong's Tuen Ma line. It was the second model of electric multiple unit rolling stock of the Kowloon-Canton Railway Corporation (KCRC) (after the Metro Cammell EMU, introduced in the 1980s), though they have been operated by MTR Corporation (MTRC) after it merged with KCRC in 2007.
The trains were delivered in several phases. The phases have different model numbers but an identical appearance. The models numbers include: SP1900, SP1950, KRS991 and 1151. Unless specified, the name SP1900 would apply to describe all the model numbers in this article. Another model, 1141A (MTR CRRC Changchun EMU), is similar in design to the SP1900, but was built by a different manufacturer and has a slightly different appearance. After the rail merger, the KCR logos on the SP1900 EMU were replaced with those of MTR, and a revised route map was introduced in the train interiors.