Due to the high energy of the injected FCC-hh proton beam (1.3 or 3.3 TeV) a detailed evaluation of the injection design regarding potential failure cases is of major importance. Further attention has to be given to the fact that the injection is – as in LHC - located upstream of the side experiments.
Resulting design and hardware specifications for the extraction from the High Energy Booster, the partly superconducting transferline and the injection insertion will be discussed. A layout for the transferlines combined with an injection protection scheme is proposed. Failure scenarios related to the injection process are identified and simulations to validate the efficiency of the protection devices are presented. The feasibility of implementing a massless septum to mitigate the impact of a malfunctioning injection kicker will be discussed.