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CAF Civity (UK, Electric)
British Rail classes 331, 397 and 897
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Great Britain | 2017
more than 55 produced
397002 in May 2025
397002 in May 2025
flickr/Samson Ng

When Arriva UK was looking for new trains for the Northern franchise, they selected CAF since they were the only manufactuer that could deliver electric and diesel trains on the same platform. The electric variant of the Civity became class 331, while the diesel variant is class 195. In contrast to Civity variants in other countries, the British trains do not use Jacobs bogies. They ordered 31 three-car units and twelve four-car units which have a top speed of 100 mph and eight 220 kW traction motors

At the same time, FirstGroup ordered twelve five-car class 397 units for the TransPennine Express. These have a more streamlined design and a top speed of 125 mph. TPE calls these trains “Nova 2”. The third electric Civity variant that will be introduced in the UK will be the class 897. These are three-mode trains which can run under 25 kV AC, on battery and with diesel. Each set will consist of ten cars and have a top speed of 125 mph. Ten have been ordered for entry into service in 2028 and they will be called “Serenza”.

Variant331/0331/1397897
General
Built2017-20202017-2019from 2026
ManufacturerCAF
Wheel arr.B-B+2-2+B-B B-B+2-2+2-2+B-B B-B+2-2+B-B+2-2+B-B
Seats203283298569
Dimensions and Weights
Length234 ft 3 in310 ft 10 in387 ft 2 in
Rigid wheelbase7 ft 5 in
Axle load11,300 lbs
Boiler
Variant331/0331/1397897
Power Plant
Power
Power sourceelectric - ACelectric - battery + AC + diesel-electric
Electric system25,000 V 50 Hz
Continuous power2,360 hp (1,760 kW)3,540 hp (2,640 kW)
Top speed100 mph125 mph
Calculated Values
EMU
local
regional
three-phase AC
tri power
last changed: 02/2026
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