AbstractThe ITER Toroidal Field Model Coil (TFMC) uses an Nb3Sn superconducting conductor that operates up to 80 kA. The TFMC busbars are dual channel superconducting cable-in-conduit conductors designed for operation at 80 kA using the NbTi superconducting material. The busbar system is split into two parts: one linked to the coil, and the other to the current leads. Three different joining systems have been developed for connecting the busbars to the coil, to the current leads and between each other. The design is described and the R and D carried out is reported.