#5289· Class 377
British Rail Class 377
🇬🇧 United Kingdom ·built by ALSTOM Transportation Germany· from 2003· electric multiple unit in use on commuter services in the south-east of England
10 photos from Wikimedia Commons · credits & licences
- 1. Southern 377 at Hemel Hempstead: Tom walker· CC BY 3.0
- 2. 377163 at Hastings: TheJRB· CC BY-SA 2.0
- 3. 476. Class 377 377148 at Hive Station: Two Penny Theatre· CC BY 2.0
- 4. British Rail Class 377 377501 - 13942799259: train_photos· CC BY-SA 2.0
- 5. British Rail Class 377 377501: train_photos· CC BY-SA 2.0
- 6. British Rail Class 377 377503: train_photos· CC BY-SA 2.0
- 7. British Rail Class 377 377507: train_photos· CC BY-SA 2.0
- 8. British Rail Class 377 377511: train_photos· CC BY-SA 2.0
- 9. British Rail Class 377 Battersea - 22180679318: train_photos· CC BY-SA 2.0
- 10. British Rail Class 377 Battersea - 22379119261: train_photos· CC BY-SA 2.0
what is it?
The British Rail Class 377 Electrostar is a British dual-voltage electric multiple unit passenger train (EMU) built by Bombardier Transportation on its Electrostar platform at Derby Litchurch Lane Works from 2001 to 2014. The trains work suburban services in South London, and main-line commuter services to Sussex, Surrey, Kent and the South Coast, on which they replaced Class 421 and Class 423 slam-door stock that was more than 40 years old and did not meet modern health and safety requirements. Built in the early 2000s, the units had a troubled introduction: being fully air-conditioned, their higher power consumption compared to the trains they replaced led to major upgrades being required to the 750 V DC third-rail power supply used in the former Southern region.
who runs it
base stats
Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.
fun facts
- First built 23 years ago, in 2003.
- Top speed is 1.2× a car on the Dutch motorway (130 km/h).
- At full speed it would cover Amsterdam–Utrecht (≈ 40 km) in 15 minutes.
multiple unit: A self-propelled train: motors are spread under the passenger cars, so no separate locomotive.
spec sheet
- built
- 2003
- in service from
- 2003
- number built
- 247
- kind
- multiple unit
- traction
- electric
- origin
- 🇬🇧 United Kingdom
- builders
- ALSTOM Transportation Germany
- operators
- First Capital Connect, Southern, Southeastern
- top speed
- 161 km/h
- power
- —
- Dutch name
- Class 377
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q2975712, Wikipedia: British Rail Class 377 (CC BY-SA 4.0).Updated 2026-10-25.