British Rail Class 204


The British Rail Class 204 designation has been used twice for two similar types of diesel-electric multiple units.

History

The original units, numbered in the range 1119-1122, were two-car versions of the Class 205 '3H' units, and were classified as 2H under the old system.
In 1979, BR decided to augment the two-car units to three-car formation. Three of the four units were reformed with the addition of centre trailers taken from 3H units, and thus were themselves reclassified as Class 205.
The fourth 2H unit, and the three former 3H units which had given up their trailers, were augmented by reusing the ex-2EPB driving trailers from redundant Class 206 units. The Class 204 designation was re-applied to these four newly formed units. They were renumbered into the range 1401-1404. In 1986, the units were renumbered to 204001-004 to conform with the TOPS numbering system.

Technical details

Power car
Original Class 204 Units
Unit NumberDMBSODTCsoLDisbandedStatus
111960118608183/1980Reclassified as 3H with addition of TSO 60653
112060119608193/1980Reclassified as 3H with addition of TSO 60652
112160120608205/1974Reclassified as 3H with addition of TSO 60657
112260121608212/1980Converted to 3T unit 1402 with addition of DTSso 77508

Reformed Class 204 Units
* ex-Class 205

Preservation

Of the original 2H units, a single driving trailer has been preserved.
None of the reformed 3T units are preserved.