 Trains are hauled by two electric twin-unit locomotives, similar to the late versions of PKP's ET40 but with SA3 couplers instead of buffers and chain couplings, except of westbound between Trebišov and Ruskov where the gradient is over 15 ‰ and two sets of locos are needed.The train weights are up to 4,200 tonnes.This stretch has the heaviest catenary construction in the EU (2 work cables, 1 fitting cable and 3 additional cables).