Hello to all!
I have a thought of something I MIGHT want to do:
convert an existing 240 wire to two 120v 15a outlets

Power source: It is a separate fuse box that can conatin two 30 amp
cartridges fuses cartridges. The wire coming from this box goes
straight to a outlet in the kitchen where the Window AC unit use to run
at. This box also has its own kill switch.

The wi A 10/3(rd, blk, wht) with bare ground.

to place a two space/four circuit sub-panel on the wall with two 15 amp
breakers. And feed the SP by extending the existing wire.


I see other posts about this but I have other questions:

What would be the volt/amp fuses to use in the fuse box?
Would I need some type of step-down convertor to make sure the voltages
are at 120v at the outlet?
What other issues will I face?

I do not want to change anything at the main service panel, fuse
box(except the fuses), or the existing wire. As I want the ability to
use 240/30 amp if a need arises in the future.

Thank you.