The Maximum cable size for the SEA91253N & SEA91254 is 50mm2 rigid cable or 35mm2 flexible or with ferrule cable.
For installation of a 70mm2 cable you would require a larger incomer such as 160A, 200A or 250A.
For installation of a 70mm2 cable you would require a larger incomer such as 160A, 200A or 250A.