The "shut off" with the three fuses is the service disconnect.
You write "with" not "from".
Is the shut off in the service or in the new panel ?
If in the service then it is the service disconnect and use four wire from there to the new panel. (2)
If in the new panel then the new panel is an additional service disconnect. (1)
*Note I got my 1 & 2 reversed in the last post I have edited it.
Alan--Inspector.
