British departmental multiple unit classification system
The 900 series classes were reserved formultiple units in departmental stock, most of which were converted from old passenger units. In broad terms, Classes 930–935 were allocated toSouthern Region multiple units (ex-200 and 400 series), 936 & 937 to otherelectrical multiple units (EMU) (ex-300 and 500 series) and 960 to otherdiesel multiple units (DMU) (ex-100 series). In recent years, this has been less rigidly adhered to.
Diesel multiple units [ edit ] Class 960 RDB975010 BR ResearchLab 19 Iris II at Southampton 1996 Class 901 (Test units, ex-Class 101 )Class 930 (Departmental SRDEMUs ) Class 950 (Purpose-built test unit, similar toClass 150 )[ 1] Class 951 (Sandite /De-icer units, ex-Classes201 ,203 ,205 , and207 ) Class 960 (Departmental DMUs) Class 999 (PrototypePPM for use in passenger trial)Multi-Purpose Vehicle (Purpose-builtdepartmental vehicles , classes DR 970, 980 and 989)Mobile Maintenance Train (Track maintenance DMUs, classes DR 975, 976 and 978)Gas turbine multiple unit [ edit ] Electric multiple units [ edit ] 930016 rail cleaning unit: ex 4-EPB 5024 MBSOs at Eastleigh 1995 The original use for the Southern Region (SR) classes are included in brackets; these designations have been less rigidly applied in recent years.
Class 910 (Test units, ex-Class 488 )Class 920 (3PEP prototype unit)Class 930 (SR Sandite and de-icing units) Class 931 (SR route learning and stores units) Class 932 (SR research and tractor units) Class 933 (SR mobile instruction units) Class 935 (4PEP research units)Class 936 (Sandite units, ex-Classes311 and501 )Class 937 (Sandite units, ex-Classes302 and308 ) Class 960 (Test units, ex-Classes309 and310 ) ^ Shannon, Paul (1989).BR traction in colour - 2 . Shepperton: Ian Allan. p. 110.ISBN 0-7110-1871-5
Departmental self-propelled rail vehicles of the United Kingdom
Diesel multiple units Electric multiple units Others Locomotives
