 | This article needs to be updated. (October 2022) |
| HEMU-430X | |
|---|---|
 HEMU-430X passing through Seodaejeon station. | |
| Manufacturer | Hyundai Rotem |
| Family name | KTX |
| Constructed | 2010–2011 |
| Number built | 1 |
| Number in service | 0 |
| Formation | TC+4M+MC[1]
|
| Operators | Korail |
| Depots | Osong |
| Lines served | Gyeongbu High Speed Railway Honam High Speed Railway |
| Specifications | |
| Car body construction | Aluminium, composite[2] |
| Train length | 147.4 m (483 ft 7+1⁄8 in) |
| Car length | End cars: 23.5 m (77 ft 1+3⁄16 in)[2] Intermediate cars: 25.1 m (82 ft 4+3⁄16 in) |
| Width | 3,100 mm (10 ft 2+1⁄16 in)[2] |
| Height | 3,720 mm (12 ft 2+7⁄16 in)[2] |
| Maximum speed | Planned in tests/design: 430 km/h (267 mph) Planned in service (KTX-III): 350–370 km/h (217–230 mph) |
| Weight | Axle load: max. 14 t (15.4 short tons; 13.8 long tons)[1] |
| Traction system | 18 three-phase asynchronous induction motors and permanent magnet synchronous motors IGBT-based VVVF inverters[1] |
| Power output | 20 x 410 kW (550 hp) (8.2 MW or 11,000 hp) |
| Acceleration | 0.5 m/s2 (1.8 km/(h⋅s)) up to 150 km/h (93 mph)[1] 0 to... |
| Electric system(s) | 25 kV/60 Hz AC overhead line[1] |
| Current collector(s) | Pantograph[1] |
| UIC classification | 2'2' + Bo'Bo' + Bo'Bo' + Bo'Bo' + Bo'Bo' + Bo'Bo' |
| Braking system(s) | Eddy current, regenerative, rheostatic, disc |
| Safety system(s) | TVM 430, ATP, ATC |
| Multiple working | Yes[1] |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
HEMU-430X (standing for High-Speed Electric Multiple Unit 430 km/h eXperimental) is a South Korean high-speed train intended for a maximum speed of 430 km/h (267 mph). On 31 March 2013, it achieved 421.4 km/h (261.8 mph) in a test run, making South Korea the world's fourth country after France, Japan and China to develop a high-speed train running above 420 km/h (261 mph).[3] The main new feature of the train compared to older South Korean high-speed trains is distributed traction. The commercial versions of the trains, tentatively named the EMU-260 (as of October 2022, officially "Eum") and EMU-320 (as of April 2024, officially "Cheongryong"), were delivered to Korail from 2020 to 2021.