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321 series

321 series
WestJapanRailwayCompanyType321-1.jpg
321 series train on a Tōkaidō Main Line service, July 2006
In service December 2005–
Manufacturer Kinki Sharyo
Built at Higashiōsaka
Replaced 201 series, 205 series
Constructed 2005–
Number built 273 vehicles (39 sets)
Formation 7 cars per trainset
Fleet numbers D1–D39
Operator(s) JR-West
Depot(s) Aboshi
Line(s) served Tōkaidō Main Line, Sanyō Main Line, Kosei Line, Fukuchiyama Line, JR Tōzai Line, Katamachi Line, Osaka Higashi Line, Yamatoji Line
Specifications
Car body construction Stainless steel
Train length 136,600 mm (448 ft 2 in)
Car length 19,550 mm (64 ft 2 in) (end cars)
19,500 mm (64 ft 0 in) (intermediate cars)
Width 2,950 mm (9 ft 8 in)
Height 3,630 mm (11 ft 11 in)
Doors 4 pairs per side
Maximum speed 120 km/h (75 mph)
Weight 232.8 t
Traction system Variable frequency (2-level IGBT)
Power output 270 kW
Acceleration 2.5 km/h/s
Deceleration 4.2 km/h/s (emergency)
Electric system(s) 1,500 V DC overhead
Current collection method WPS27D scissors-type pantograph
Bogies WDT63 (powered), WTR246/WTR246A (trailer)
Braking system(s) Regenerative brake, electronically controlled pneumatic brakes, snow-resistant brake
Safety system(s) ATS-SW, ATS-P
Track gauge 1,067 mm (3 ft 6 in)

The 321 series (321系 Sanbyaku-nijūichi-kei?) is a commuter electric multiple unit (EMU) train type operated by West Japan Railway Company (JR-West) in the Kansai Region of Japan.

The 321 series was developed from the earlier 207 series to replace the ageing 201 series and 205 series trains on the Tōkaidō Main Line. One 321 series set also replaced the 207 series (set Z16) withdrawn due to collision damage sustained in the Amagasaki rail crash of 25 April 2005.

KuMoHa321 and MoHa321 cars each have two scissors-type pantographs.

Original interior style, June 2010

Interior following changes to seat covers and hanging straps, November 2013

LCD passenger information display


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