| HX electric trainsets |
|
| Class | NVR Number | Axle Formula | Number | Year in Service | Power [kW] | Tractive Effort [kN] | Max.Speed [km/h] | Traction Type | Voltage | 1st class | 2nd class | |
 |
387/1a | EMU-4 | 12 |
2016 | 1500 | 176 | E | 750V=+25kV |
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| New "Electrostar" EMUs of Bombardier, modified
for Heathrow Express in 2020, nrs. 387 130-141 (operated by GWR) |
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