Toei 10-300 series

The Toei 10-300 series (read as 10,300) is a Japanese city commuter electric multiple unit operated by the Tokyo Metropolitan Bureau of Transportation (Toei) since May 2005 on the Toei Shinjuku Line.
==History==
The 10-300 series sets were designed for the sole purpose of replacing the old 10-000 series trains on the Toei Shinjuku Line, which were by then nearing 27 years of operation at the time. The first sets began operation on 21 May 2005. Initial sets were eight cars long but were later standardized to ten cars in length. A derivative using 10-000 series mechanicals entered service earlier in January. Some intermediate cars were also manufactured by JR East's Niitsu Works.
Operation of eight-car sets ended on 10 August 2022.
==Design==
The 10-000 series cars use a contemporary design featuring a flat front and top-mounted recessed headlights. The sets feature a green livery on the front of the cabs with dark blue accents. Starting from third batch sets their cab designs were significantly changed.
===Variations===
;Cab variations
Toei 10-450 2022.jpg|Early batch set
==Specifications==
Construction of the cars is of a lightweight stainless steel. First and second batch 10-300 series sets are based on JR East's E231 series sets and generally share their mechanicals; third batch and later 10-300 series sets are based on JR East's E233-2000 series sets and also generally share their mechanicals.
The first two batches of 10-300 sets use Mitsubishi 3-level IGBT variable frequency drive traction systems; these produce a a wind-like noise. Third batch sets and onwards feature Mitsubishi 2-level IGBT drives which produce a hissing sound.
Category:Electric trainsets
Category:Toei trains
Category:J-TREC locomotives
Category:Tokyu Car locomotives