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Rolling stock　

800系

800 series

800 · Kyūshū
Look closer

How do I recognise the early design?

前照灯（ぜんしょうとう）

Look for the upright lamp on the cheek of the rounded nose. The plate shows the early design. Later 800s have more rounded lamp housings.

Compare · N700 · San’yō · Kyūshū

鉄道車両カタログ · 800系
Identification clueUpright headlamp
Formation6 cars
Cab side · nose to the left · schematic, not to scale

Look for the upright lamp on the cheek of the rounded nose. The plate shows the early design. Later 800s have more rounded lamp housings.

If the platform angle hides the nose, check the formation display: the 800 runs in six-car sets on this line, while the Kyūshū-serving N700 has eight. The 800 can work Sakura or Tsubame wholly within Kyūshū. The service name alone cannot identify the vehicle.

What should I look for on an 800 series if I can see only the front of the train?

Look for a rounded nose and upright lamps on either side. Early 800s have straighter lamp housings, later ones more rounded housings. If the lamps are hidden, check the formation display. Here an 800 has six cars and the Kyūshū-serving N700 has eight.

列車の設備 · 九州新幹線（8両・6両） · 九州新幹線800系の先頭部デザイン · JR九州800系
Compare the two profiles

Explore the connections

Propulsion and equipment

800系 · 6両 · Documented specification 2004-03 / 2009-09

Power is distributed through all six cars to handle Kyūshū’s gradients. The converter rating uses MVA, an electrical apparent-power unit. It is separate from the motors’ mechanical output in kW.

Powered formation6 powered cars (6M)
Design gradient context35‰ = 3.5%
Power converter rating1.25 MVA per converter 2
Traction controlTransformer, converter and traction-motor system supplied by Toshiba
Traction converter coolingCooling capacity increased for steep-gradient operation 2
Train protectionSingle-stage ATC braking; later extension-build specification also supports the San’yō multi-stage function
1 2
Technical sources · Checked 2026-11-07

[1] 国内新幹線向け 車両システムと電気品 · 東芝 · 2009-09 · pp. 21–22, Table 3, §§3.1–4, Figure 6

[2] 九州旅客鉄道（株）800系新幹線電車向け主要電気品 · 東芝 · 2004-03 · p. 72, 交通システム

Inside the engineering

Original 800-series electrical equipment · March 2004

Equipment ancestry700-series main-circuit equipment, adapted for Kyūshū
Thermal design scopeConverter, main transformer and traction motors
Station-approach controlSingle-stage ATC braking from high speed into the station
1

A hill-climbing thermal problem

Repeated steep-gradient operation placed demands on more than motor output. Toshiba describes lighter equipment and stronger cooling throughout the main circuit, alongside smoother ATC-controlled station approaches.

1
Technical sources and page references
  1. 九州旅客鉄道（株）800系新幹線電車向け主要電気品
    東芝レビュー · 2004-03 · Printed p. 72; physical PDF sheet 15

Details from the literature

Front and rear

800-0 · U001

821-1 · Car 1 · Kagoshima-Chūō end
822-101 · Car 6 · Hakata end

Compare the tall lamp housings and the broad dark area surrounding the cab windows. These family features appear at both ends. Read the vehicle number to distinguish the 821 and 822 cab cars.

Head-on schematics. Scale is illustrative; lamps shown unlit.

JR九州800系U001編成 · formation · 800系編成表 · independent formation check · U001 · Train-Directory photograph

Seating

Travelling as a pair? A typical row on the six-car 800 has a pair of seats on each side of the aisle, in both ordinary reserved and non-reserved accommodation. Check the operator’s chart for individual rows and wheelchair spaces.

Typical row
Ordinary reserved2 + 2
Ordinary non-reserved2 + 2

Operator seat guide

Sources and updates

Checked 2026-11-07