AREX Class 2000

The AREX Class 2000^[1] is an electric multiple unit of the Airport Railroad operated by the Incheon International Airport Railroad on the AREX service. It is used to make the slower local journeys and hence has a more metro like layout with 4 doors per side and longitudinal seating, in contrast to the express layout the 1000s have.

AREX Class 2000
AREX Class 2000
Manufacturer	Hyundai Rotem
Formation	6 cars per train TC-M'-M'-M'-M'-TC
Lines served	AREX
Specifications
Maximum speed	110 km/h (68 mph) (service) 120 km/h (75 mph) (design)
Power output	4200 kW
Deceleration	3.5km/h/s (service), 4.5km/h/s (emergency)
Electric system(s)	25 kV AC 60 Hz

On September 15, 2025, the first of nine additional 2000 series trains began revenue service on the all-stop service.^[2] The trains feature an upgraded exterior and a top operating speed of 150 km/h (93 mph). Two more sets are expected to enter service by October 17 with the remaining six entering service by the end of the year.^[2]

Mockup of a 2000 series car with updated design