List of largest locomotives List List

| name_ | railway | series | maker | dates | drive | wheel_arrangement | weight | power_ | notes_ |
|---|---|---|---|---|---|---|---|---|---|
| Re 465 | BLS, Switzerland | Re 465 001-465 0018 | SLM, ABB | 1994-97 | electric | Bo-Bo | 84 t | 9,520 horsepower (7,099 kW) , [Tractive force: 300 kN (30.6 tons) | most powerful locomotive with only four axles, similar locomotives with slightly different technical data are in operation with SBB (Re 460; 119 pc/ NSB (El 18; 22 pc)/ VR (Sr2; 46 pc)/ KCRC (Hong Kong; 2 pc) |
| Re 6/6 | SBB, Switzerland | 11601-11689 | SLM, MFO/BBC/Sécheron | 1972, 1975–80 | electric | Bo-Bo-Bo | 120 t | 10,908 horsepower (8,134 kW) Tractive force: 398 kN (41 tons) | in operation (October 2012), revised classification Re 620, most powerful single-frame locomotive till China Railways HXD1B appeared |