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TOPS Code/Class:	423 (2)		Previous	Next
TOPS Category: ?This is my own (unofficial) means to categorise TOPS codes based on what they relate to and whether they are long (4 characters, i.e. including sub-codes) or short (3 characters)	SM - Short Code, Multiple Units	In selection ?This works on your last-used TOPS selection, including any filters and sort orders. Buttons will not show if the current TOPS code was not in your last selection, or if you are at the beginning or end of the data set.
TOPS GENKOC: ?The first character of a TOPS code is known as the GENKOC and indicates the general type of rolling stock (e.g. 1xx are DMUs).	4 - Electric Multiple Units (DC)	Overall ?This works on the overall TOPS code list without any filtering or sorting applied.
TOPS BRAKTY: ?The third character of many TOPS codes is the BRAKTY, indicating the type of braking equipment fitted (e.g. A indicates air brakes).	* - Not defined by code
Description:	4-VEP 4-car Electric Multiple Unit
Numbers: ?Numbers are only shown where the ranges were limited. Otherwise, refer to the listings section below. The letter r after the numbers indicates this is a range, with not all numbers in the sequence used.	7701-7894, later 3000-3194
Status:	Defunct
Date On:	1975
Origins:	Reclassified from 432
Date Off:
Destiny:
Key Photo:
Icon:

Similar/re-used codes ?TOPS codes have often been re-used. If there are any other known uses, they will be listed here.
423 (1) 4-EPB 4-car Electric Multiple Unit (1972-1975)

Sub-codes ?If this code had any sub-codes, they will be listed here.

423/1 (2)

4-VEP 4-car Electric Multiple Unit (refurbished)

Designs/Diagrams ?Design codes and diagrams related to this code (and any sub-codes where relevant) are listed here.
0 designs/diagrams currently listed against this TOPS code/class (including any sub-codes).

Batches ?Batches of numbers built or converted to this TOPS code are listed below. Note that only codes that were wholly to this code will appear, otherwise refer to the listings section for other numbers.
There are 25 batches recorded as being wholly to this TOPS code (including any sub-codes).

Numbers	Class	Design	Type	Qty	Origin	Built/Converted	Date/s	Lot
62121-62140	423 (2)	880	Class 423 MBSO	20	New	BR, Derby	1967	30760
62182-62216	423 (2)	880	Class 423 MBSO	35	New	BR, York	1968	30773
62217-62266	423 (2)	881	Class 423 MBSO	50	New	BR, York	1969	30794
62267-62276	423 (2)	881	Class 423 MBSO	10	New	BR, York	1970	30800
62317-62354	423 (2)	881	Class 423 MBSO	38	New	BR, York	1973	30813
62435-62475	423 (2)	881	Class 423 MBSO	41	New	BR, York	1974	30851
70781-70800	423 (2)	474	Class 423 TSO	20	New	BR, Derby	1967	30759
70872-70906	423 (2)	474	Class 423 TSO	35	New	BR, York	1968	30772
70907-70956	423 (2)	474	Class 423 TSO	50	New	BR, York	1969	30793
70957-70966	423 (2)	474	Class 423 TSO	10	New	BR, York	1970	30801
70997-71034	423 (2)	474	Class 423 TSO	38	New	BR, York	1973	30812
71115-71155	423 (2)	474	Class 423 TSO	41	New	BR, York	1974	30852
76230-76269	423 (2)	458	Class 423 DTCsoL	40	New	BR, York	1967	30758
76333-76402	423 (2)	458	4-VEP Class 423 Driving Trailer Composite (Semi-open) Lavatory (DTCsoL)	70	New	BR, York	1968	30771
76441-76540	423 (2)	459	4-VEP Class 423 Driving Trailer Composite (Semi-open) Lavatory (DTCsoL)	100	New	BR, York	1969	30792
76541-76560	423 (2)	459	4-VEP Class 423 Driving Trailer Composite (Semi-open) Lavatory (DTCsoL)	20	New	BR, York	1970	30799
76641-76716	423 (2)	459	Class 423 DTCsoL	76	New	BR, York	1973	30811
76861-76942	423 (2)	459	Class 423 DTCsoL	82	New	BR, York	1974	30853
7700	423 (2)		Class 423 4-VEP 4-car EMU	1	Conversion		1984
7701-7720	423 (2)		Class 432 (later 423) 4-VEP 4-car EMU	20	New	BR, York/Derby	1967
7721-7755	423 (2)		Class 432 (later 423) 4-VEP 4-car EMU	35	New	BR, York	1967-1968
7756-7805	423 (2)		Class 432 (later 423) 4-VEP 4-car EMU	50	New	BR, York	1968-1969
7806-7815	423 (2)		Class 432 (later 423) 4-VEP 4-car EMU	10	New	BR, York	1970
7816-7854	423 (2)		Class 432 (later 423) 4-VEP 4-car EMU	39	New	BR, York	1970-1973
7855-7894	423 (2)		Class 432 (later 423) 4-VEP 4-car EMU	40	New	BR, York	1973-1974

Profiles ?Profiles provide an overview of the histories of various types of train. Profiles that are relevant to this TOPS class/code are listed below. If no profiles are shown, try looking under the parent code (in main details section above)

Photos - Internal
There are 3 photos of this type (including any sub-codes).

Photos - External
No external photos of this item yet.

Listings
There are 232 listings (with 194 distinct numbers) for this TOPS code/class (including any sub-codes).

Notes
No notes have been left yet. ?There may be some notes posted but which have not yet been approved.

Related Information
To be added

Dimensions ?Dimensions are normally recorded against design/diagram numbers. They can be recorded against batches, lots or TOPS codes if the design/diagram is not available.
There are no dimensions recorded for this TOPS code.

Drawings ?Drawings are normally referenced to specific design/diagram numbers. They can be recorded against batches, lots or TOPS codes if the design/diagram is not available. If no drawings are listed here, try looking at related designs/diagrams (above).
There are no drawings referenced for this TOPS code.

Data History
Record added 01/01/2020 by Thomas Young

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Record edited 1 time.

Time / Date	Edited by	Change
08:58 on Thu 29/04/2021	Thomas Young	Key photo added