cooling unit. This makes a temperature monitoring system possible, which, like the climate control units, can communicate with the tunnel control system and, if necessary, can be replaced with such, without [...] Case Study Safety and system uptime in the St. Gotthard Base Tunnel. Two competent partners – one solution: electrical enclosure manufacturer and thermal management specialist develop a concept that withstands [...] the technology used in the tunnel must always be up to date; this applies not only to the whole system, but also to the individual components. The most important components here are Pfannenberg’s electrical