I am tapping into a 60 amp (main service panel breaker protected) 220v outlet stubbed out to where I need power. It was stubbed out years ago to an outside backyard wall for installation of a pool later on by the original owner/builder. I'm new owner and no pool is planned. I need to tap into this power for my shop which has no 220v power and I have five 220v machines. I running 6 gauge wire (boy is that stuff expensive) from the stubbed outlet, along the outside wall of my shop in emt conduit, then into my shop through the wall into a 125 amp breaker subpanel.
Between the two (stubbed outlet and inside subpanel) I need to tap into the 60 amp line for a mini split that I plan to install. It will be 220v and either a 15 or 20 amp (12k or 18k btu ac/heater) unit - depending on which one I go with. I was planning on putting a fuseable disconnect between the 60 amp line and the mini split, sized to 20 amp. However, I can't find any 20 amp fuseable disconnects, seems that they all start at 30 amp. So, couple of questions. Is it ok to use a 30 amp fuseable disconnect there? Or does anyone know of a 20 amp fuseable disconnect out there anywhere? Randy