The two companies operate different electrical systems, (15,000 V AC at 16.7 Hz in Austria, and 3,000 V DC in Italy), which requires a stop to change electric locomotives.
Kaks firmat opereerivad erinevate elektrisüsteemidega (15 000 V vahelduvvool 16,7 Hz Austrias ja 3000 V alalisvool Itaalias), mis nõuab peatumist elektrivedurite vahetamiseks.