The CR400AF Fuxing () is a Chinese electric high-speed train developed by CRRC Changchun Railway Vehicles and manufactured by CRRC Qingdao Sifang. As part of the China Standardized EMU, the CR400AF is designed to operate at a cruise speed of and a maximum speed of in commercial service. Development on the project started in 2012, and the design plan was finished in September 2014. The first EMU rolled off the production line on 30 June 2015. The series received its current designation of Fuxing in June 2017, with the nickname Red Dragon. It is among the world's fastest conventional high-speed trains in regular service, with an operating speed of .

A derivative version of this train known as KCIC400AF or () or () is exported for operations in Indonesia on their Jakarta–Bandung high-speed railway.

Variants All variants of the Fuxing train are compatible. The EMU models share the same standard required by China Railway Corporation, hence the name China Standardized EMU. Fuxing train models can be identified by their designation. The absence of a letter after the dash indicates the standard 8-car configuration. A denotes a 16-car configuration; B denotes a 17-car configuration; C denotes 8-car multiple units with automatic train operation capability; G denotes an 8-car trainset resistant to sandstorms and cold climates; and Z denotes an 8-car configuration with redesigned interior and exterior. Some variants have two letters indicating a combined configuration, such as type GZ, which is a trainset featuring extreme weather resistance (type G) and a redesigned interior and exterior (type Z). CR400AF

8-car standard production model with standard maximum speed of . It is manufactured by CRRC Qingdao Sifang.

KCIC400AF/AF-CIT Exported derivative of the CR400AF for Jakarta–Bandung high-speed line. CR400AF–A 16-car version manufactured by CRRC Qingdao Sifang. The first CR400AF-A started operation in July 2018 on the Beijing–Shanghai high-speed railway. These sets are long and have a passenger capacity of 1,193 passengers. 77 sets have been manufactured. This model is no longer produced.

CR400AF–B 17-car version manufactured by CRRC Qingdao Sifang. Testing started in 2018 and entered passenger service in 2019 in response to high passenger demand on the Beijing–Shanghai high-speed railway. These sets are and have a passenger capacity of 1,283 people. 13 sets have been manufactured. This model is no longer produced.

CR400AF–C 8-car ATO enabled version with redesigned interior and exterior. It is manufactured by CRRC Qingdao Sifang. 3 sets have been manufactured, including one converted to CR400AF–Z. This model is no longer produced.

CR400AF–G 8-car sandstorm and cold climate resistant version. It is manufactured by CRRC Qingdao Sifang. 4 sets have been manufactured, including one gauge-changing technology demonstrator. On the gauge-changing set, the gauge-changing bogies have been replaced with regular bogies when the train entered service.

CR400AF–Z

8-car variant with redesigned and upgraded interior and exterior. It is manufactured by CRRC Qingdao Sifang. It is now being used on most of the high speed railway in China. They have a capacity of 578 passengers. This model superseded the CR400AF. 117 sets have been manufactured, excluding the set converted from CR400AF–C.

CR400AF–AZ 16-car variant with upgraded train system. Manufactured by CRRC Qingdao Sifang. This model superseded the CR400AF–A. 5 sets have been manufactured.

CR400AF–BZ 17-car variant with redesigned and upgraded interior and exterior. It is manufactured by CRRC Qingdao Sifang. This model superseded the CR400AF–B. 2 sets have been manufactured.

CR400AF–S An upgraded 8-car variant of CR400AF-Z (see below) with enhancements to the interior to accommodate more passengers. It has a capacity of 619 passengers. This model superseded the CR400AF–Z. 209 sets have been manufactured.

CR400AF–AS An upgraded 16-car variant, known as the CR400AF-AS, was introduced in September 2025 with upgraded train system and can accommodate more passengers. It has a capacity of 1254 passengers. This model superseded the CR400AF–AZ. 32 sets have been manufactured.

CR400AF–BS An upgraded 17-car variant, known as the CR400AF-BS, was introduced in April 2024 for operation on the Beijing-Shanghai high-speed railway, beginning 15 June 2024. This variant features interior enhancements to accommodate more passengers and includes a new seating class called Premium First Class, positioned between First Class and Business Class. This model superseded the CR400AF–BZ. 5 sets have been manufactured.

CR400AF–AE 16-car sleeper variant with upgraded train system. Manufactured by CRRC Qingdao Sifang. It is Operation by Beijing West/Shanghai-Hongqiao to Hong Kong West Kowloon High Speed Sleeper Train Service use only. Notably, this is the first sleeper train in the world to be capable of 350 km/h operation. 5 sets have been manufactured.

CR400AF–J

The CR400AF-J is a 8-car comprehensive inspection train.

Specification

Train type Car dimensions Total length Top speed Seating capacity Formation Power output(under 25 kV) Entry into Service CR400AF/AF–A/AF–B CR400AF End cars length: Inter cars length: Width: Height: Calculated: Real: Test: Design: Continuous operation: Current operation: 556: 10 business, 28 first and 518 standard576: 10 business, 28 first and 538 standard392: 10 business, 24 first and 358 standard 4M4T August 15, 2016 CR400AF–A Calculated: Real: 1193: 22 business, 148 first and 1023 standard 8M8T June 16, 2018 CR400AF–B Calculated: Real: 1283: 22 business, 148 first and 1113 standard 8M9T January 5, 2019

Formation

Power Destination M – Motor car T – Trailer car C – Driver cabin P – Pantograph

Coach Type ZY – First Class Coach ZE – Second Class Coach ZEC – Second Class Coach/Buffet Car ZYE – First Class/Second Class Coach ZYS – First Class/Business Coach ZES – Second Class/Business Coach WR – Soft Sleeper Car WRC – Soft Sleeper/Dining Car DGN – Multi-function Coach

CR400AF, CR400AF–C, CR400AF–Z, CR400AF–G, CR400AF–S Coach No.12345678Type ZYS ZE ZEC ZE ZESType ZY CA WR ZY Power Configuration Mc Tp M T M Tp McPower Units Unit 1 Unit 2 Capacity 5+28 90 75 63 90 5+40 Capacity 5+24 60 48 42 60 5+28 Capacity 6+28 90 75 63 90 6+40 Capacity 5+28 90 75 63 90 6+40 Capacity 5+32 93 78 83 93 6+43 Capacity 7+24 / 2+36 24 2+14 7+24 Remaining series Train No. CR400AF–2017, CR400AF–2142 to CR400AF–2146 Remaining CR400AF–Z series, and CR400AF–C–2214 Train No. CR400AF–Z–1059 to CR400AF–Z–1063, CR400AF–Z–2316 to CR400AF–Z–2340 Train No. CR400AF–S–1064 to CR400AF–S–1080, CR400AF–S–2346 to CR400AF–S–2397 Train No. CR400AF–2018 to CR400AF–2020, 2029, 2369, 2818 (Government trains)

CR400AF–2808 (Government Train) Coach No.123456789101112 Type ZY CA ZY WR Power Configuration Tc M Tp M Tp M T M Tp M Tc Power Units Unit 1 Unit 2 Unit 3 Capacity 7+24 / 60 2+36 24 2+14 24

CR400AF–A, CR400AF–AZ, CR400AF–AS, CR400AF–AE Coach No.12345678910111213141516 Type SW ZY ZE ZEC ZE ZY ZYS Type ZYE WR WRC WR ZYE Power Configuration Tc M Tp M Tp M T M Tp M Tp M Tc Power Units Unit 1 Unit 2 Unit 3 Unit 4 Capacity 5+12 60 90 75 48 90 60 5+28 Capacity 6+12 60 90 75 48 90 60 6+28 Capacity 6+14 62 93 78 73 93 62 5+24 Capacity 5+14 62 93 78 73 93 62 5+32 Capacity 12+45 40 18 40 12+45 CR400AF–A series CR400AF–AZ series CR400AF–AS series (with preferred first-class seats) CR400AF–AS series (without preferred first-class seats) CR400AF–AE series

CR400AF–B, CR400AF–BZ, CR400AF–BS Coach No.1234567891011121314151617 Type SW ZY ZE ZEC ZE ZY ZYS Power Configuration Tc M Tp M Tp M T M Tp M Tp M T Tc Power Units Unit 1 Unit 2 Unit 3 Unit 4 Capacity 5+12 60 90 75 48 90 60 5+28 Capacity 6+12 60 90 75 48 90 60 6+28 Capacity 6+14 62 93 78 73 93 62 5+24 CR400AF–B series CR400AF–BZ series CR400AF–BS series

Distribution As of August 2026, there are 672 CR400AF series EMU in service (661 in China and 11 in Indonesia).

Train model letter identification G – Cold-resistant C, Z – Intelligent S – Enhanced-technology E – Sleeper A – 16-car trainset B – 17-car trainset

Vehicle number distinction 00XX – Sample vehicles, test vehicles 01XX, 02XX – Vehicles or sample vehicles purchased by non-national railway groups 1XXX: Trains produced from Qingdao Sifang Alstom (Bombardier) 2XXX: Trains produced from CRRC Qingdao Sifang Locomotive and Rolling Stock