The ACB class is an upgraded version of the AC and ACA classes with a slightly higher power output hence the B after the class AC. They were built by UGL Broadmeadow in NSW and railed to WA in order of completion (numerical order).
Drive Type: Diesel Electric - AC
Engine: GE 7FDL-16EFI
Generator: GE GMG192
Traction Motors: GE 5GEB30
Horse Power: Gross - 4,520hp
At Rail - 4,350hp
Weight: 134t
Max rated speed: 115km/h
Builders Model: C44aci