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<\/a>A Eurostar e300 train in Brussels. Illustrative photo. Photo: Illias Teirlinck \/ Eurostar.<\/p>\nThe European Union Agency for Railways authorised the modernised e300 on July 6, and the first commercial service operated on July 17, according to the Franco-British Chamber of Commerce<\/a>. \u201cBy equipping 100% of our trains with ERTMS signalling, Eurostar is reinforcing its pioneering role as the backbone of European rail,\u201d said Zelda Crambert, Eurostar\u2019s director of rolling stock. The programme covers all eight e300 trainsets and, once completed, will extend ERTMS\/ETCS across Eurostar\u2019s entire current fleet.<\/p>\n Don\u2019t miss\u2026Eurostar 55C Train Upgrade for Celestia Fleet<\/a><\/p>\n A regulatory deadline, not just an upgrade<\/p>\n Part of the urgency traces to Belgium, which requires all trains operating on its network to carry ETCS by Dec. 12, 2027, replacing the older TBL1+ system, according to MASTERIS<\/a>, the industrial partner handling the conversion work. The prototype trainset completed static and dynamic testing in partnership with MASTERIS, SNCB and SNCF Voyageurs Mat\u00e9riel before receiving authorisation; industrial work is now underway at SNCB\u2019s workshops in Namur, where Eurostar says it will keep only one trainset out of service at a time to protect commercial capacity during the rollout. The retrofit is intended to keep the e300s operational during Eurostar\u2019s transition to the new Celestia fleet \u2014 a \u20ac2 billion investment covering a firm order for 30 Alstom Avelia Horizon trains and options for 20 more, with entry into service beginning in 2031.<\/p>\n What comes next for Eurostar\u2019s e300 ERTMS programme<\/p>\n Watch for how quickly the remaining seven e300 units complete conversion, since Eurostar has committed to a one-trainset-at-a-time approach specifically to limit the impact on commercial capacity \u2014 a pace that will determine how long the retrofit programme takes overall. Also worth tracking: whether Belgium\u2019s December 2027 ETCS deadline creates similar pressure on other operators running trains through the country, since Eurostar\u2019s timeline is shaped by that regulatory cutoff as much as by its own fleet strategy.<\/p>\n News on railway transport, industry, and railway technologies from Railway Supply<\/a> that you might have missed:<\/p>\n