821 series
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| 821 series | |
|---|---|
 Set U002 in June 2019 | |
| In service | March 2019 – Present |
| Manufacturer | Hitachi |
| Built at | Kudamatsu, Yamaguchi |
| Constructed | 2018–2022 |
| Entered service | 16 March 2019 |
| Number built | 21 vehicles (7 sets) |
| Formation | 3 cars per trainset |
| Fleet numbers | U001- |
| Operators |  JR Kyushu |
| Lines served | Kagoshima Main Line |
| Specifications | |
| Doors | 3 pairs per side |
| Maximum speed | 120 km/h (75 mph) (design speed) |
| Traction system | Variable frequency (SiC-MOSFET) |
| Electric system(s) | 20 kV 60 Hz AC (overhead catenary) |
| Current collection | Pantograph |
| Multiple working | 811 series[1] |
| Track gauge | 1,067 mm (3 ft 6 in) |
The 821 series (821系) is an AC electric multiple unit (EMU) train type operated by Kyushu Railway Company (JR Kyushu) in Japan since March 2019. Two three-car trains were delivered in February 2018 for testing in preparation for full production and entry into revenue service.[2] There are currently 7 three-car trains in service.
The 821 series trains are formed as three-car sets as follows.[3][4]
| Designation | Mc | T | Tc |
|---|---|---|---|
| Numbering | KuMoHa 821 | SaHa 822 | KuHa 821 |
- The KuMoHa 821 car is equipped with one single-arm pantograph.[4]
The pantograph end of driving car KuMoHa 821-2
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