JR East E127 series

Data (as of 29 Nov 2025)

History

The E127 series is a type of commuter train for rural lines, with each unit forming two coaches. 13 units of the series (variant 0) was initially introduced to Niigata area, to replace old trains (165 series, built in 1963-70) and ease congestion. It can also be operated without a conductor. When the Hokuriku Shinkansen (high-speed rail) was extended and part of the Shin-etsu Main Line was taken over by Echigo Tokimeki Railway in 2015, JR East resold ten units of the E127-0 series to the Railway. Two units remained in Niigata until 2022 and were used mostly on the Yahiko Line.

In addition, 12 units were introduced to southern Nagano Prefecture (variant 100). The E127-100 series trains have been serving the area since 1998 and contributed to efficient services with energy-saving traction and driver-only operation.

In 2023, two units of the variant 0 were reallocated to the Nambu Line (branch line) near Tokyo, replacing 205 series.

Current Operations & Future Prospects

JR East owns both variants. Two E127-0 units are allocated to the Nambu Line between Shitte and Hamakawasaki (Hamakawasaki branch line). Twelve E127-100 units are used on the Chuo Main Line (Kobuchizawa - Shiojiri, Shiojiri - Okaya via Tatsuno), the Oito Line (from Minami-Otari to the south), the Shinonoi and Shin-etsu Main Lines (Matsumoto - Nagano).

Echigo Tokimeki Railway uses ten E127-0 units between Myoko-Kogen and Naoetsu as well as through-services towards Nagaoka on the JR Shin-etsu Main Line.

Photos

E127-0 series was initially used in the Niigata area.

The E127 series on the Oito Line (Nagano Prefecture).