inverter was added, enabling the air-conditioning to be used. History The four cars in operation were originally built in 1962 by Hitachi and Nippon Sharyo as 2010 series trains for use on the gauge Keio Line in Tokyo. 18 2010 series cars were purchased from Keio between 1984 and 1985 by the Iyo Railway in Shikoku, becoming the 800 series. Regauging work for use on the gauge Iyo line involved modifying the Nippon Sharyo NA-318 and Tokyu Car TS-321A bogies on the trailer (non-motored) cars and replacing the bogies on motored cars with Tokyu TS-307 bogies from former Keio Inokashira Line 1000 series EMUs withdrawn in 1984. On the Iyo Railway, the 800 series trains initially operated as 3-car sets, but in 1994, driving cabs based on the design of the former Keio 5000 series EMUs were added to the intermediate SaHa 850 cars to create two-car sets formed as MoHa 820 + KuHa 850. This is the reason for the differing style driving cabs on each end of the present-day 2000 series sets. Two two-car 800 series trains (MoHa 822 + KuHa 852 and MoHa 823 + KuHa 853) were purchased from the Iyo Railway in November 2009, and were modified for driver-only-operation and repainted at the line's Nakanocho Depot by Keisei Sharyo engineers, becoming the Choshi Electric Railway 2000 series. The trains entered service on 24 July 2010. Individual car histories Accidents On 11 January 2014, at 08:19, set 2002 derailed on points on the approach to Kasagami-Kurohae Station while on a service from Tokawa to Choshi. Two of the train's bogies were derailed, but the train remained upright. The unit remained out of service due to the lack of funds to carry out repairs, but later in 2014, students from the Choshi Commercial Senior High School used crowdfunding to raise 4.84 million yen in a period of two months to help cover the cost of repair work. Repairs were completed in March 2015, with the train returning to passenger service on 4 April 2015. References External links Official profile of 2000 series Electric multiple units of Japan Train-related introductions in 2010 Hitachi multiple units ja:銚子電気鉄道線#車両 600 V DC multiple units Nippon Sharyo multiple units