The FXN5C AC drive diesel locomotive is a new generation of energy-saving and environmentally friendly locomotive suitable for domestic mainline freight transport. The locomotive features outstanding performance, good economy, and green environmental protection.
Outstanding performance: The locomotive has high tractive effort and adopts a high-strength car body, axle-hung bogie, high-torque asynchronous motor, and individual axle control; the locomotive adopts a double-cab central corridor structure for convenient inspection; an elastic cab is used to reduce vibration and noise, greatly improving crew comfort.
Independent R&D: The locomotive is equipped with the company's independently developed R12V260ZJ diesel engine, with emissions meeting EU IIIA levels; when equipped with the 12V260ZJ diesel engine using after-treatment technology, emissions meet EU IIIB levels. The locomotive control software is independently developed, and optimization services can be provided over the long term.
Good economy: The locomotive diesel engine has low fuel consumption; the main and auxiliary integrated system enables electric braking energy recovery; the locomotive auxiliary power is small, and the AC auxiliary system adopts variable-frequency control to improve auxiliary energy efficiency; easily removable parts have extended service life, and the high-performance braking resistor device reduces wear on brake shoes and wheel treads.
Green and environmentally friendly: The locomotive adopts technologies such as high pressure ratio variable turbocharging and electronically controlled fuel injection.
Advanced technology: It is the first diesel locomotive in China to use rectifier-inverter module technology for starting; the locomotive adopts a dual microcomputer network control system meeting the international IEC 61375 standard; it is the first time a Chinese standardized brake has been installed on a diesel locomotive; the auxiliary converter system uses high-efficiency DC/DC modules for the first time.
Good maintainability: The locomotive adopts modular full 3D design, using simulation technology to simulate the disassembly and assembly process and maintenance space of components, making component disassembly, assembly, and maintenance convenient.
High reliability: The locomotive is equipped with the 6A on-board safety protection system to monitor key items, further improving reliability and safety; the internal network communication of the locomotive adopts dual-network redundancy design with MVB bus communication and Ethernet communication to ensure communication reliability; train communication adopts WTB bus communication.
High degree of intelligence: Research on a full-lifecycle intelligent locomotive architecture has been carried out, a powerful safety monitoring system has been established, and a diesel engine PHM intelligent diagnostic technology platform has been built based on key locomotive systems to achieve intelligent fault diagnosis and early warning, improve reliability, and provide full-lifecycle locomotive services.
Basic Locomotive Parameters
| 1 | Track gauge | 1435mm |
| 2 | Transmission type | AC-DC-AC electric transmission |
| 3 | Wheel arrangement | C0-C0 |
| 4 | Axle load | 25t |
| 5 | Service weight | 150t |
| 6 | Diesel engine power | 3530kW |
| 7 | Maximum operating speed | 120km/h |
| 8 | Continuous speed | 18km/h |
| 9 | Maximum starting tractive effort | 580kN |
| 10 | Continuous tractive effort | 540kN |
| 11 | Minimum negotiable curve radius | 145m |
| 12 | Fuel tank capacity | 9000L |
| 13 | Locomotive overall dimensions (L×W×H) | 22900mm×3100mm×4700mm |







