question

ogrt avatar image
ogrt asked

Fuses or Breakers for 48V

An easy question, but surprisingly hard to find the answer on the internet. For the MPPT (150/45) output in a BYD 48V system what are the recommendations for fuse type. Mega fuse is too high current, Midi only goes to 32V. I saw a Busmann 285060F in one Victron picture but that is rated at maximum 48V, and therefore does that rule it out as charge voltage is above that? I'd prefer to use the busmann breaker (hope it's not directional) as it also acts as a switch, but not sure when max voltage is quoted at 48V. Otherwise what is the recommended fuse type ideally in a stud type fuse holder.

MPPT Controllers
2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

1 Answer
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

Victron also have 58V MIDI fuses in their pricelist:

https://www.victronenergy.com/information/pricelist


ve-midi-48v.png (36.5 KiB)
2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.