It is one of four lines in the world using three-phase electric power,  requiring two overhead conductors, with the track forming the third conductor. There is a non-powered connection with the metre gauge Matterhorn Gotthard Bahn at Zermatt to allow transfer of freight and delivery of rolling stock.
It is one of four lines globally utilizing three-phase electric power, requiring two overhead wires alongside the track functioning as the third conductor. There exists a non-powered connection with the metre gauge Matterhorn Gotthard Bahn at Zermatt to facilitate the transfer of freight and delivery of rolling stock.