Keikyu N1000 series

Keikyu N1000 series
Stainless steel (left) and aluminium (right) N1000 series sets
In service	March 2002–Present
Manufacturer	Kawasaki Heavy Industries, Tokyu Car Corporation
Constructed	2002–
Number built	302 vehicles (51 sets)
Formation	4/6/8 cars per set
Operator(s)	Keikyu
Specifications
Car body construction	Aluminium (batches 1-5), stainless steel (batches 6 onward)
Car length	18,000 mm (59 ft 1 in)
Width	2,830 mm (9 ft 3 in)
Doors	3 pairs per side
Maximum speed	120 km/h (75 mph)
Electric system(s)	1,500 V DC overhead
Multiple working	600 series, 1500 series, 2000 series, 2100 series
Track gauge	1,435 mm (4 ft 8 1⁄2 in)

The Keikyu N1000 series (京急新1000形, Keikyū Shin-1000-gata^?) is a DC electric multiple unit (EMU) train type operated by the private railway operator Keikyu on commuter services in the Tokyo area of Japan since 2002.

The 8-car sets are primarily used on limited-stop "Rapid Limited Express" and "Limited Express" services on the Keikyu Main Line, including through-running services to and from the Toei Asakusa Line subway, Keisei Main Line, and Hokuso Line. 4-car sets are used to form 12-car "Rapid Limited Express" and "Limited Express" services, and are also used singly on all-stations "Local" services. The 6-car formations delivered from 2011 are generally used on all-stations "Local" services. The N1000 series sets can be used in multiple with other Keikyu EMU types, including the 600 series, 1500 series, 2000 series, and 2100 series.

Since the first set was introduced in March 2002, the type has undergone a number of design improvements. Sets built from 2002 to 2006 have painted aluminium bodies, whereas sets built from 2007 onward (sets 1073 onward) have unpainted stainless steel bodies. More detailed variations are described below.

Delivered February to June 2002.

Fitted with single-arm pantographs and roller-blind destination indicators from new. Use Siemens GTO variable-frequency drive (VVVF).

Delivered May to July 2003.