British Rail Classes 445 and 446

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British Rail Class 445 and 446
4-PEP-4002.jpg
4PEP unit No.4002 in the sidings at Wimbledon depot
In service 1971-1980
Manufacturer BREL York
Family name 1972 design (PEP)
Number built 2 Class 445, 1 Class 446
Formation 2/4 cars per trainset
Capacity 280 (445)
136 (446)
Operator British Rail
Specifications
Maximum speed 75 mph (121 km/h)
Voltage 750V dc third rail
Gauge Standard

The PEP Stock were prototype electric multiple units used on British Rail's Southern Region during the early 1970s. They were forerunners of the BR Second Generation electric multiple unit fleet. Three units were built, one two-car unit (2001), and two four-car units (4001/4002). Under TOPS, they were allocated Classes 445 (4PEP) and 446 (2PEP).