in
Sweden. The Regina trains in Sweden are wider than the CRH1; Swedish versions are specially designed for running out-of-gauge, while Chinese versions do not have such design, although the width of both loading gauges are the same.
CRH1A CRH1A and CRH1B are based on Bombardier's
Regina family. the CRH1A sets started service from February 1, 2007 at the Guangzhou -Shenzhen Railway. The 2 problems of this train is that this train is made out of stainless steel, so when the train go through tunnels, the passenger with have some ear sensitivity. This train had been given a nickname, big metro. The seats can't turn around, so half of the passengers have backward seats. The only good thing is that having fixed chairs with have more space, so CRH1A has can carry the most people. In July 2010, the Chinese MOR ordered additional 40 sets of CRH1A, The designed top operating speed increased to , In September 2010, during test run at Qinshen PDL, top speed of CRH1-081A reach . From July 1, 2014, all CRH series EMU numbers have been changed. The original number is , and now it is changed to (CRH1A-1xxx). Production EMUs after that date are in accordance with the new regulations.
CRH1A-A File:CRH1A-A Hexie EMU.jpg|CRH1A-A File:CRH1A-A-1174 at Chaoshan Railway Station.jpg|CRH1A-A at
Chaoshan railway station File:Car 1 interior of CRH1A-A-1176 (20190225063300).jpg|CRH1A-A First Class File:Car 6 interior of CRH1A-A-1235 (20190211081500).jpg|CRH1A-A second class In September 2012, The MOR issued a revision in the Zefiro contract, which calls for the order of an additional 106 eight car Zefiro 250 (46 sets) and Zefiro 250NG (60 sets) train sets in lieu of the cancellation of the 16 car Zefiro 380 sets. The NG variant is a new model, which will use new materials in order to achieve weight reductions and more efficient operation.
CRH1B On October 31, 2007, the Chinese MOR ordered 20 sets of CRH1B trains (CRH1-041B～CRH1-060B). CRH1B is a fleet-extended CRH1A. Each CRH1B consists of 16 cars, including three first class coaches (ZY), 12 second class coaches (ZE) and one dining car (CA). CRH1B, however, have not such restriction on the operational speed, the maximum speed is still . CRH1B first come into commercial use in April 2009, between Shanghai–Nanjing & Shanghai–Hangzhou. On July 23, 2011, CRH1-046B was hit on ZY104600 car by CRH2-139E in
Yongtaiwen PFL accident.
CRH1E On October 31, 2007, the Chinese MOR ordered 20 sets of CRH1E trains (CRH1-061E～CRH1-080E). The CRH1E is the first high-speed 16-car sleeper train (10M6T) in the world which is based on Bombardier's
ZEFIRO design. The train was designed by Bombardier and Zagato. Each train set from the first 12 trainsets consists of one luxury sleeper (WG), 12 soft sleepers (WR), two second-class coaches (ZE), and one dining car (CA). The first CRH1E trainset delivered in October 2009, first came into service on November 4, 2009, between Beijing–Shanghai. In fact, only 15 CRH1Es were delivered, three of which had the luxury sleeper replaced with normal sleepers. The other five ended up being CRH1Bs, this time based on the CRH1E design (instead of CRH1A). Later on five additional CRH1Es (based on the CRH1A-A design) have also been manufactured and delivered. Top speed is advertised at . The eight-car version is designated CRH380D, series number CRH380D-1501 ～ CRH380D-1585. == Formation ==