[rotorwrench]

Amperage is Amperage whether it's 6-volt or 12-volt. The difference is in the wire it is protecting. 6-volt systems need some pretty big gauge wire to pass the same amount of current as 12 or 24-volt. 12-volt systems can use 18 gauge wire to pass the same current that 6-volt uses on 16 gauge and 24-volt can use 20 gauge. They would all use the same circuit protection since most breakers are rated up to at least 32-volt. Some are rated all the way up to 120-volt. They will trip if the current level rises above the rating regardless of the size of the wire same as a fuse will. Most are either 15 or 30 amp and are usually used on a buss where there are further fuses to protect individual circuits.

Kerby