Keikyu 600 series

The Keikyu 600 series is an electric multiple unit train type operated by the private railway operator Keikyu on commuter services in the Tokyo area of Japan. First introduced in 1994, a total of eight 8-car sets and six 4-car sets were built by Tokyu Car Corporation and Kawasaki Heavy Industries to replace the ageing 1000 series sets on limited express services.

Operations

The 600 series is primarily operated on the Keikyu Main Line. They are also used on inter-running services to the Toei Asakusa Line, Keisei Main Line, Hokuso Line, and the Narita Sky Access Line. Four-car sets are occasionally used on the Keikyu Daishi Line.

Formations

, the fleet consists of eight 8-car sets and six 4-car sets.

8-car sets

The eight-car sets 601 to 607 are formed as follows, with six motored cars and two trailer cars.

Designation	M1c	M2	Tu	Ts	M1'	M2	M1	M2c
Numbering	60x-1	60x-2	60x-3	60x-4	60x-5	60x-6	60x-7	60x-8

The "x" in the car numbers corresponds to the set number.
The "M1c" and "M1" cars are each fitted with one lozenge-type pantograph, and the "M1'" car is fitted with two pantographs.

The eight-car set 608 is formed as follows, with four motored cars and four trailer cars.

Designation	Muc	T	Tp1	Mu	Ms	T	Tp1	Msc
Numbering	608-1	608-2	608-3	608-4	608-5	608-6	608-7	608-8

The two "Tp1" cars are each fitted with two single-arm pantographs.

4-car sets

The four-car sets are formed as follows, with two motored cars and two trailer cars.

Designation	Muc	T	Tp2	Msc
Numbering	65x-1	65x-2	65x-3	65x-4

The "Tp2" car is fitted with two single-arm pantographs.

Interior

The first batch of sets introduced featured transverse seating bays throughout. While most of the seating was fixed, some seats were partially retractable. Later sets featured longitudinal seating. From 2004, the earlier sets were modified with some transverse seating bays replaced by longitudinal seats.

Liveries

Set 606 received a special "Blue Sky Train" livery in March 2005 to commemorate the opening of Haneda Airport Terminal 2.

Refurbishment

The 600 series underwent refurbishment from August 2009 to March 2014. Modifications included were replacing the wiper cover with a slit of the model number, narrower front-end skirts, LED side lights, and a pair of LCD information screens above the doorways.