The series E231-500 started operations in April 2002 as a replacement for the series 205 ahead of the D-ATC implementation on the Yamanote Line. This train was the first in the Tokyo Metropolitan area under JR to feature LCD screens for information displays, installed above each door.
To alleviate congestion, six-door cars, previously attached to the 10th car, were additionally integrated into the 7th car, making two six-door cars in the formation. Beginning in 2010, with the installation of platform doors at stations, the existing six-door cars were phased out, and new SAHAE231 four-door cars were incorporated into the 7th and 10th cars.
Starting in 2015 with the introduction of the new series E235, these cars began their transition to the Chuo-Sobu Line, completing the transition by January 2020.
- Reproducing the first batch with the AU725A cooler
- AU725A cooler reproduced with new production
- Original style obstacle deflector replicated
- Light gray bogies from initial production reproduced
- SAHAE230 features newly sculpted speaker preparation cover
- Front display area equipped with exchangeable printed parts, with additional parts included
- Green glass on the front and sides reproduced
- Includes enhanced obstacle deflector
- Headlights, taillights, and front display area illuminated with white LED
- Transfer sheet with selectable car numbers included
- Printed JR logo
- Equipped with flywheel power
- New power collection system with black wheels
- M-13 motor adopted
- Compatible with interior lighting kit TOMIX 0733
[Cars]
- KUHAE231-500
- SAHAE230-500 (6-door car)
- MOHAE231-500 (T)
- MOHAE230-500
- SAHAE230-500 (6-door car)
- MOHAE231-500 (M)
- MOHAE230-500
- KUHAE230-500
[Accessories]
- Runner parts: Lightning arresters
- Runner parts: Front display parts
- Runner parts: Antennas, signal flames
- Parts: Obstacle deflector (enhanced)
- Transfer sheet: Car numbers, etc.
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