British Rail Class 501
Overview
Electric multiple unit
An electric multiple unit or EMU is a multiple unit train consisting of self-propelled carriages, using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number of the carriages...
s were built in 1957/58 for use on the former LNWR/LMS
London, Midland and Scottish Railway
The London Midland and Scottish Railway was a British railway company. It was formed on 1 January 1923 under the Railways Act of 1921, which required the grouping of over 120 separate railway companies into just four...
suburban electric network of the London Midland Region. A total of 57 three-car units were built.
The services worked by the Class 501 units consisted of a small self-contained group of lines, which were electrified at 650V DC on the 3rd and 4th rail principle, linking London Euston
Euston railway station
Euston railway station, also known as London Euston, is a central London railway terminus in the London Borough of Camden. It is the sixth busiest rail terminal in London . It is one of 18 railway stations managed by Network Rail, and is the southern terminus of the West Coast Main Line...
to Watford
Watford
Watford is a town and borough in Hertfordshire, England, situated northwest of central London and within the bounds of the M25 motorway. The borough is separated from Greater London to the south by the urbanised parish of Watford Rural in the Three Rivers District.Watford was created as an urban...
, Broad Street with both Richmond and Watford
Watford
Watford is a town and borough in Hertfordshire, England, situated northwest of central London and within the bounds of the M25 motorway. The borough is separated from Greater London to the south by the urbanised parish of Watford Rural in the Three Rivers District.Watford was created as an urban...
plus the Croxley Green branch — which was mostly served by shuttle trains from Watford
Watford
Watford is a town and borough in Hertfordshire, England, situated northwest of central London and within the bounds of the M25 motorway. The borough is separated from Greater London to the south by the urbanised parish of Watford Rural in the Three Rivers District.Watford was created as an urban...
.
