The XRB classdiesel electric locomotives were introduced by Pacific National in 2005. Built at the South Dynon workshops in Victoria, the XRB class are mechanically similar to the XR class, but are B units without driving cabs. The class are primarily used as middle units on standard gauge interstate freight trains. It is unknown whether more units will be introduced into this class. Hostlers controls are fitted for moving the locomotive about yards and depots, but in main line usage it must be led by a locomotive with a conventional driving cab.
