Draft:Semboku 3000 series

The Semboku 3000 series (泉北3000系) is an electric multiple unit (EMU) train type operated by the private railway operator Semboku Rapid Railway.

Design
Based on the design of the 100 series, 3000 series trains have stainless steel bodies. The 3000 series was also the first train type operated by Semboku Rapid Railway to feature air-conditioning. The first three sets built in 1975 initially did not have air-conditioning units on the roofs but were subsequently retrofitted with air-conditioning units a year later.

History
The first three six-car sets entered service on 3 April 1975 to augment the fleet of 100 series trains on the Semboku Rapid Railway Line. By 1990, a total of 60 vehicles were built.

From 1999 to 2000, three six-car sets (3511, 3513 and 3517) were shortened to four cars each. As a result, three new two-car sets (3551–3555) were formed from the extracted vehicles.

Withdrawals of the 3000 series commenced in 2006, starting with four cars of six-car set 3501. The remaining two intermediate cars were inserted into four-car set 3507 until it was also retired in 2007. The last two six-car first batch sets (3503 and 3505) were withdrawn from service the following year due to the introduction of the 7020 series.

With the reduction in the number of 10-car trains on the Semboku Rapid Railway Line from the start of the revised timetable on 23 November 2012, three four-car sets (3513–3517) and one two-car set (3555) were transferred to Nankai Electric Railway by 2013.

Replacement
With the introduction of the 9300 series in August 2023, the 3000 series fleet is scheduled to be progressively replaced by the new train type. As of July 2024, 16 vehicles remain in service.