The Tokyu 300 series (東急300系, Tōkyū 300-kei) is a series of articulated trams built by Tokyu Car Corporation in 1999 for the Tōkyū Setagaya Line.

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Quick Facts In service, Manufacturer ...

Tokyu 300 series
300 series set 301 in 2005
In service	1999-Present
Manufacturer	Tokyu Car Corporation
Replaced	DeHa 200 series [ja] DeHa 80 series [ja] DeHa 150 series [ja] DeHa 70 series [ja]
Constructed	1999–2001
Entered service	11 July 1999
Number built	20 vehicles (10 sets)
Number in service	20 vehicles (10 sets)
Formation	2 articulated cars per tramset
Fleet numbers	300-301 – 300-310
Operators	Tokyu Corporation
Lines served	SG Tokyu Setagaya Line
Specifications
Train length	23,980 mm (78 ft 8 in)
Width	2,500 mm (8 ft 2 in)
Doors	4 pairs per side
Maximum speed	40 km/h (25 mph)
Traction system	VVVF-IGBT
Acceleration	3.0 km/(h⋅s) (1.9 mph/s)
Deceleration	4.4 km/(h⋅s) (2.7 mph/s) (service) 5.0 km/(h⋅s) (3.1 mph/s) (emergency)
Electric system(s)	600 V DC overhead lines
Current collector(s)	Pantograph
Track gauge	1,372 mm (4 ft 6 in)

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The trains are 23,980 mm (78 ft 8 in) long, 2,500 mm (8 ft 2 in) wide, and feature an IGBT-VVVF inverter system.^[1]

The trains entered revenue service on 11 July 1999.^[1] They replaced the older DeHa 200 series [ja], DeHa 80 series [ja], DeHa 150 series [ja], and DeHa 70 series [ja].^{[citation needed]}

In commemoration of the 110th anniversary of the Tamagawa Electric Railway in April 2017, set 305 received a special wrapping.^[2] For the 50th anniversary of the Setagaya Line in May 2019, set 308 received a cat-themed wrapping.^[3]

• Sets 308 & 310 at Nishi-taishidō Station in 2019
• Set 307 in 2007
• Set 308 in 2007
• Set 309 in 2007
• Set 303 in 2007

From 10 April 2022, a 300 series set is due to receive a special livery to commemorate the 100th anniversary of Tokyu Corporation's founding.^[4]