The British Rail Class 374, also referred to as the Eurostar e320, is a type of
electric multiple unit
An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number o ...
passenger train used on
Eurostar
Eurostar is an international high-speed rail service in Western Europe, connecting Belgium, France, Germany, the Netherlands and the United Kingdom.
The service is operated by the Eurostar Group which was formed from the merger of Eurostar, ...
services through the
Channel Tunnel
The Channel Tunnel (), sometimes referred to by the Portmanteau, portmanteau Chunnel, is a undersea railway tunnel, opened in 1994, that connects Folkestone (Kent, England) with Coquelles (Pas-de-Calais, France) beneath the English Channel at ...
to serve destinations beyond the core routes to
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
and
Brussels
Brussels, officially the Brussels-Capital Region, (All text and all but one graphic show the English name as Brussels-Capital Region.) is a Communities, regions and language areas of Belgium#Regions, region of Belgium comprising #Municipalit ...
. Passenger services began in November 2015. The trains, owned by
Eurostar International Limited
Eurostar International Limited (EIL) is the railway company operating the international Eurostar train services between Paris, London, Amsterdam, and Brussels via the Channel Tunnel. Eurostar was previously operated by three separate companies ...
, are sixteen-coach versions of the
Siemens Velaro
Siemens Velaro is a family of high-speed electric multiple unit trains built by Siemens. It is based on the ICE 3 high-speed trains initially co-manufactured by Siemens and Bombardier Transportation, Bombardier for German national rail operator ...
. Each train is long. The trains are compliant with the
Technical Specifications for Interoperability
A Technical Specification for Interoperability (abbreviated as TSI) is a text provided for in European Directive 2016/797 adopted by the European Parliament and the Council of the European Union on the interoperability of the European rail system ...
(TSI).
Eurostar International's older fleet of
Class 373 "Eurostar e300" trains, introduced in 1994 when the
Channel Tunnel
The Channel Tunnel (), sometimes referred to by the Portmanteau, portmanteau Chunnel, is a undersea railway tunnel, opened in 1994, that connects Folkestone (Kent, England) with Coquelles (Pas-de-Calais, France) beneath the English Channel at ...
opened, could not be used on the
15 kV AC
Railway electrification using at are used on transport railways in Rail transport in Germany, Germany, Rail transport in Austria, Austria, Rail transport in Switzerland, Switzerland, Rail transport in Sweden, Sweden, and Rail transport in No ...
overhead line
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, Electric multiple unit, electric multiple units, trolleybuses or trams. The generic term used by the International Union ...
(OHLE) electrification system used in Germany, and most of the older trains could not be used on the 1.5 kV DC OHLE used in the Netherlands, and the trains did not have sufficient space onboard to install ERTMS signalling. This meant that Eurostar could not run its Class 373 units on services to these countries, and the Class 374 was designed and built to overcome these problems and enable Eurostar to run services to these locations.
When the Class 374 trains are used in Britain, they can only run on
High Speed 1
High Speed 1 (HS1), officially the Channel Tunnel Rail Link (CTRL), is a high-speed railway linking London with the Channel Tunnel.
It is part of the line carrying international passenger traffic between the United Kingdom and mainland Euro ...
, which has been designed to accommodate larger trains from mainland Europe, having a larger
loading gauge
A loading gauge is a diagram or physical structure that defines the maximum height and width dimensions in railway vehicles and their loads. Their purpose is to ensure that rail vehicles can pass safely through tunnels and under bridges, and k ...
compared to the domestic British rail network.
The original order for ten sets was increased to seventeen sets in November 2014.
As of June 2018, the Class 374 has replaced the majority of Class 373s, with most Class 373 trains having since been withdrawn and scrapped in the UK.
Development
Siemens Velaro
Siemens Velaro is a family of high-speed electric multiple unit trains built by Siemens. It is based on the ICE 3 high-speed trains initially co-manufactured by Siemens and Bombardier Transportation, Bombardier for German national rail operator ...
high speed EMUs are derived from the
ICE 3
ICE 3 (standing for ''Intercity Express, Intercity-Express'') is a family of high-speed electric multiple unit trains operated by Deutsche Bahn. It currently includes classes 403, 407 and 408 which are additionally specified as ICE 3, New ICE 3 ...
first used by
Deutsche Bahn
(, ; abbreviated as DB or DB AG ) is the national railway company of Germany, and a state-owned enterprise under the control of the German government. Headquartered in the Bahntower in Berlin, it is a joint-stock company ( AG).
DB was fou ...
(DB) in 2000. Variants include
DB Class 407
Siemens Velaro is a family of high-speed electric multiple unit trains built by Siemens. It is based on the ICE 3 high-speed trains initially co-manufactured by Siemens and Bombardier Transportation, Bombardier for German national rail operator ...
, intended for international services including through the
Channel Tunnel
The Channel Tunnel (), sometimes referred to by the Portmanteau, portmanteau Chunnel, is a undersea railway tunnel, opened in 1994, that connects Folkestone (Kent, England) with Coquelles (Pas-de-Calais, France) beneath the English Channel at ...
.
In 2009,
Eurostar
Eurostar is an international high-speed rail service in Western Europe, connecting Belgium, France, Germany, the Netherlands and the United Kingdom.
The service is operated by the Eurostar Group which was formed from the merger of Eurostar, ...
announced a £700million project to update its fleet, with approximately £550million for new trains able to operate away from the core London-Paris/Brussels network. In October 2010, Eurostar announced that Siemens had been selected, with the Velaro platform to be used. The ''Velaro e320'', named because of plans to operate at , would be 16 cars long, to meet the Channel Tunnel safety specifications but would have distributed traction with the
traction equipment along the length of the train, not concentrated in
power car
In rail transport, the expression power car may refer to either of two distinct types of rail vehicle:
*a vehicle that propels, and commonly also controls, a passenger train, potentially a multiple unit train, often as the lead vehicle;
*a veh ...
s at each end.
Alstom litigation
The nomination of Siemens saw it break into the French high-speed market, as all French and French subsidiary high-speed operators up to that point used TGV derivatives produced by
Alstom
Alstom SA () is a French multinational rolling stock manufacturer which operates worldwide in rail transport markets. It is active in the fields of passenger transportation, signaling, and locomotives, producing high-speed, suburban, regional ...
. Alstom attempted legal action to prevent the contract, claiming that the Siemens sets would breach Channel Tunnel safety rules, but their claim was rejected by the
High Court. Alstom said that it would "pursue alternative legal options to uphold its position", and on 4 November 2010 it lodged a complaint with the
European Commission
The European Commission (EC) is the primary Executive (government), executive arm of the European Union (EU). It operates as a cabinet government, with a number of European Commissioner, members of the Commission (directorial system, informall ...
over the tendering process, who then asked the British government for "clarification". Alstom then announced it had started legal action against Eurostar in the High Court in London. In July 2011, the High Court rejected Alstom's claim that the tender process was flawed and the resulting contract "ineffective" under the Utilities Contracts Regulations, and in April 2012 Alstom said it would call off pending court actions against Eurostar.
Construction and delivery

The trains were constructed at the Siemens plant at
Krefeld
Krefeld ( , ; ), also spelled Crefeld until 1925 (though the spelling was still being used in British papers throughout the Second World War), is a city in North Rhine-Westphalia, in western Germany. It is located northwest of Düsseldorf, its c ...
in Germany,
with the first rolled out for testing at the
Wildenrath test circuit in early 2013 as Class 374, with the first unit bearing this
UIC identification mark.
The intention was for the first unit to enter service in 2014, but the approval was delayed. As a consequence, Eurostar did receive its first unit in 2014 for presentation but operation could only start a year later.
At the presentation of the first train in London in November 2014, Eurostar announced that they had ordered seven additional train sets, and that the first e320 service would be at the end of 2015.
By November 2014 nine of the ten original order trains had been built, and all ten were scheduled to be delivered by April 2016.
The seven trains in the second order were all operational by March 2018.
Testing

By April 2013, testing had started at
Siemens Mobility
Siemens Mobility GmbH is a division of Siemens. With its global headquarters in Munich, Siemens Mobility has four core business units: Mobility Management, dedicated to rail technology and intelligent traffic systems, Railway Electrification, ...
's
Wegberg-Wildenrath Test and Validation Centre
The Wegberg-Wildenrath Test and Validation Centre () is a railway test centre owned by Siemens Mobility, Siemens near Wildenrath in North Rhine-Westphalia, Germany.
History
The centre is located on the site of the former RAF Wildenrath British ...
.
On 27 January 2014, set 4007+4008 was hauled across Belgium by B-Logistiks'
TRAXX
Alstom Traxx (sold as Bombardier TRAXX before 2021) is a modular product platform of mainline diesel-electric and electric locomotives. It was produced originally by Bombardier Transportation and later Alstom, and was built in both freight an ...
E 186 199, and on the night of 29/30 January 2014 was delivered to
Temple Mills Depot.
Following tests, the French Railway Safety Board (EPSF) granted an authorisation to run the train in France on 16 October 2015; the approval for operating through the Channel Tunnel was granted on 19 November by the Intergovernmental Commission (IGC). At the beginning of January 2016 the Belgian authority SSICF authorised the operation in its country.
Operations

Eurostar have used the trains to expand its core operation between
London St Pancras International,
Paris Gare du Nord and
Brussels Midi/Zuid. To meet the prospect of increased competition through the Channel Tunnel (primarily from DB), it intends to use them to expand its network to
Amsterdam
Amsterdam ( , ; ; ) is the capital of the Netherlands, capital and Municipalities of the Netherlands, largest city of the Kingdom of the Netherlands. It has a population of 933,680 in June 2024 within the city proper, 1,457,018 in the City Re ...
, Frankfurt and
Cologne
Cologne ( ; ; ) is the largest city of the States of Germany, German state of North Rhine-Westphalia and the List of cities in Germany by population, fourth-most populous city of Germany with nearly 1.1 million inhabitants in the city pr ...
, and more destinations in France. The first Class 374 set entered service in November 2015, ahead of the full launch of the new type; the receipt of the safety authorisation from the Intergovernmental Commission was received earlier than expected, allowing Eurostar to begin utilizing the type on a small number of services for in-service testing. In September 2013, Eurostar announced that its new service between London and Amsterdam, intended to begin operation in December 2016, would be operated by the trains. Since April 2018 the scheduled service to Amsterdam operates with two e320 trains per day. Following Eurostar's merger with
Thalys
Thalys (French: ) was a brand name used for high-speed rail, high-speed train services between Paris Gare du Nord and both Amsterdam Centraal and German cities in the Rhein-Ruhr, including Aachen, Köln Hauptbahnhof, Cologne, Düsseldorf Hauptba ...
, the trains have also been used for routes in Mainland Europe, as a replacement for the aging
PBKA
PBKA is a high-speed trainset, manufactured by the French company GEC-Alsthom, and used on the international Eurostar service. Originally built for Thalys (which later merged with Eurostar) they were intended to operate between Paris, Brussels ...
s.
In early 2018, the tracks and international platforms at
Ashford International underwent a £10-million refurbishment to allow compatibility with Eurostar's e320 trains from 1 April 2018. On 3 April 2018, the Secretary of State for Transport
Chris Grayling
Christopher Stephen Grayling, Baron Grayling, (born 1 April 1962), is a British politician and author who served as Secretary of State for Justice from 2012 to 2015, Leader of the House of Commons from 2015 to 2016 and Secretary of State for T ...
met the first e320 that called at the station after the works have been called "completed" by the local authority. Problems with "power spikes" which damaged equipment of the new trains, however, initially prevented Class 374 trains from calling at Ashford, with the problem resolved in December 2019.
Fleet details
Each set is formed of 16 coaches:
Named units & Special liveries
In June 2024, unit 374017 & 374018 (4017 & 4018) was decorated with a special
Paris 2024 olympic golden livery. Unit 374027 & 374028 (4027 & 4028) has also been decorated with the same livery.
References
External links
*
Specification SheetVirtual visit of the Class 374 interior
{{German ICE class
High-speed trains of the United Kingdom
374
__NOTOC__
Year 374 ( CCCLXXIV) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Equitius (or, less frequently, year 1127 ''Ab urbe condita''). The denominat ...
Eurostar
Passenger trains running at least at 300 km/h in commercial operations
Siemens Velaro
Siemens multiple units
Train-related introductions in 2015
15 kV AC multiple units
3000 V DC multiple units
25 kV AC multiple units
1500 V DC multiple units of France
1500 V DC multiple units of the Netherlands