Keio 3000 series

Keio 3000 series
Inokashira Line 3000 series (refurbished type), May 2006
In service	1962–2011
Manufacturer	Tokyu Car
Scrapped	2008-2011
Number built	145 vehicles (29 sets)
Number in service	None
Formation	5 cars per trainset
Operator(s)	Keio Corporation
Line(s) served	Keio Inokashira Line
Specifications
Car body construction	Stainless steel
Car length	18.5 m (60 ft 8 in)
Doors	3 per side
Maximum speed	90 km/h (56 mph)
Traction system	120 kW (161 hp) traction motors
Power output	120 kW per motor
Electric system(s)	1,500 V DC
Current collection method	Overhead
Track gauge	1,067 mm (3 ft 6 in)

The Keio 3000 series (京王3000系, Keiō 3000-kei^?) was a DC electric multiple unit (EMU) train type operated by Keio Corporation on the Keio Inokashira Line in Japan from 1962 until 2011.

The 3000 series was the first Keio rolling stock to use completely stainless steel body construction. A total of 29 5-car sets (145 cars) were built from 1962 by Tokyu Car, and in 1963, the design was the recipient of the third Laurel Prize presented annually by the Japan Railfan Club.

Each trainset featured a livery in one of the seven pastel hues corresponding to a train configuration, a unique feature found only on the Inokashira line. A number of trains were later resold to operate on other lines throughout Japan.

Early, narrow-body set 3701, January 1978

Unrefurbished set 3714, August 2004

Refurbished set 3729, May 2006

The five-car trains were formed of three motored ("M") intermediate cars and two non-powered driving trailer ("Tc") cars as shown below with car 1 at the Kichijoji (western) end.

The first trains entered service on the Inokashira Line in 1962. The fleet underwent refurbishment from 1996, with the original fibre-reinforced plastic (FRP) cab ends replaced by new steel cab ends with panoramic windscreens and front skirts.

Withdrawal of the 3000 series fleet began in 1996 following the introduction of new 1000 series sets. The last remaining sets were withdrawn by the end of 2011. The withdrawal dates for the later, refurbished sets were as shown below

A number of sets were resold to other private railway companies, including the Hokuriku Railroad, Jomo Electric Railway, Gakunan Railway, Matsumoto Electric Railway (Alpico Kotsu), and Iyo Railway. In 2007, it was announced that former 3000 series EMUs would be resold to the Choshi Electric Railway in Choshi, Chiba, and converted to two-car sets. However, this plan was cancelled due to the cost of converting the 1,500 V DC cars to 600 V DC operation.