Electric locomotive

nounStandard termRailroad

A locomotive that draws its propulsion power from an external electrical source.

A rail vehicle that relies on overhead catenary wires or an electrified third rail to power its traction motors. Unlike diesel-electrics, these units do not carry a prime mover to generate their own power. They offer high horsepower and rapid acceleration, making them standard on high-density passenger corridors and dedicated freight routes where the massive infrastructure investment pays off.

Heard on the job

We've got two electric locomotives pulling the consist up the corridor, so power won't be an issue.

Insider tip

Crews often refer to them simply as motors or electrics to distinguish them from diesels.

Do not mix it up with

  • Diesel locomotive: A diesel locomotive generates its own electricity using an onboard diesel engine, whereas an electric locomotive draws power from external infrastructure.