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#1952

NZR EO class

🇬🇧 United Kingdom ·built by English Electric· from 1922· class of 5 New Zealand electric locomotives, built 1923

NZR EO class, photo 1 of 6
1/6 Yak52fan· CC BY-SA 3.0

what is it?

The NZR EO class of 1923 were electric locomotives used on the steep Otira to Arthurs Pass section of the Midland Line in New Zealand. They were primarily needed for pulling trains through the 1 in 33 grade 8.5 km (5.3 mi) Otira Tunnel which was too long and too steep to allow steam locomotives to be used.

who runs it

base stats

  • speed 64 km/htop speed
  • power 510 kWpower output
  • weight 50 tin working order
  • built 5made in total

Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.

fun facts

  • First built 104 years ago, in 1922.
  • 510 kW is about 6 family cars (~85 kW each) flat out.
  • Weighs about as much as 8 African elephants (~6 t each).
  • 11.7 m long: about 3 cars parked nose to tail.
  • Served for 45 years (1923–1968).

electric locomotive: Draws power from overhead wires or a third rail and pulls separate carriages.

spec sheet

built
1922
in service from
1923
retired
1968
status
preserved
number built
5
kind
Electric
traction
electric
origin
🇬🇧 United Kingdom
builders
English Electric
operators
New Zealand Railways Department
top speed
64 km/h
power
510 kW
gauge
1,067 mm Cape gauge
electric system
overhead lines
wheel arrangement
Bo′Bo′
length
11.7 m
weight
50 t

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q6956203, Wikipedia: NZR EO class (CC BY-SA 4.0).Updated 2026-10-25.

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