Tobu 30000 series

Tobu 30000 series
30000 series 6-car set 31609 leading a 10-car train in June 2008
In service	1997–
Manufacturer	Alna Kōki, Tokyu Car Corporation, Fuji Heavy Industries
Constructed	1996-2003
Number built	150 vehicles (30 sets)
Number in service	150 vehicles (30 sets)
Formation	10/6/4 cars per trainset
Operator(s)	Tobu Railway
Depot(s)	Kasukabe, Minami-Kurihashi, Shinrinkōen
Line(s) served	Tobu Skytree Line, Tobu Isesaki Line, Tobu Nikko Line, Tobu Tojo Line, Tokyo Metro Hanzomon Line, Tokyu Den-en-toshi Line
Specifications
Car body construction	Stainless steel
Car length	20 m (65 ft 7 in)
Doors	4 pairs per side
Electric system(s)	1,500 V DC
Current collection method	Overhead line
Track gauge	1,067 mm (3 ft 6 in)

The Tobu 30000 series (東武30000系, Tōbu 30000-kei^?) is a commuter electric multiple unit (EMU) train type operated by the private railway operator Tobu Railway in Japan since 1997. Initially formed as six-car and four-car sets, sets are mostly formed as permanently coupled ten-car formations since 2011.

As of 1 April 2015^[update], the fleet consists of two six-car and two four-car sets based at Minami-Kurihashi and Kasukabe depots for Tobu Skytree Line and Tobu Nikko Line services, and 13 permanently coupled 6+4-car sets based at Shinrinkoen Depot for Tobu Tojo Line services.

The M1 cars are fitted with two single-arm pantographs, and the M3 cars are fitted with one.

The M1A cars are fitted with two single-arm pantographs.

SS038 trailer bogie

SS138 motored bogie

The first three sets delivered, sets 31601, 31401, and 31402, had flat panels on the seat ends and no centre stanchions. Set 31403 was fitted with contoured seats, and these were fitted on all subsequent sets delivered. Sets 31607 and 31407 onward had higher light blue panels on the seat ends.

Interior view showing seating style in early sets (car 33405)

Interior view showing seating style in later sets (car 32612), November 2015

Priority seating in car 32612, November 2015

A wheelchair space in car 32612, November 2015

The first set, 31601, was delivered in November 1996, with the first trains entering service on 25 March 1997. Initially used primarily on Tobu Isesaki Line services, they were introduced on through-running services to and from the Tokyu Den-en-toshi Line via the Tokyo Metro Hanzomon Line from March 2003.