MTR KTT

KTT - Kowloon Through Train Guangdong Through Train (MTR)
KTT in Standard livery
Manufacturer	SLM Winterthur ABB (Asea Brown Boveri) - locomotives / Kinki Sharyo - coaches
Entered service	1998-present
Number built	2 locomotive and 12 coaches
Fleet numbers	Kowloon Through Train
Capacity	184 - 112 first class, 72 premium class
Operator(s)	MTR
Specifications
Car length	18550mm
Maximum speed	Design speed 240 km/h (150 mph)
Power output	12,200 kW
Power supply	Catenary
Electric system(s)	25 kV AC, 50 Hz Catenary
Current collection method	Pantograph
Braking system(s)	Air
Safety system(s)	AWS (former), TBL (enhanced with ATP)
Coupling system	Buckeye coupler
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge

KTT (Chinese: 九廣通)) is a train set used by the MTR Corporation Limited in Hong Kong on the cross-boundary service to Guangdong route. The KTT is not the only service from Hong Kong to China, Guangdong service is also provided by the mainland Chinese railway operators.

The double-deck "KTT" trailers have lower bottom floor than the ordinary cars serving on the same pair of tracks.

KTT is used on the Guangdong Line (Hung Hom (Kowloon), Hong Kong - Dongguan - Guangzhou East) of the through train service.

Between January to May 1998 the KTT cars provided service between Hung Hom and Lo Wu stations. After the whole route was electrified, the KTT serves non-stop between Hung Hom Station and Guangzhou East railway station. Although the train model has a top speed of 230 km/h (143 mph), KTT only runs at a maximum service speed of 160 km/h (99 mph) on the Hong Kong section of the Guangzhou - Kowloon Railway. Under normal demand, KTT has nine compartments (seven first-class compartments and two executive-class compartments).