question

svsimple avatar image
svsimple asked

Fuse for Cerbo GX

The Cerbo GX manual says to use a 1A fuse, but the Fuse that came with the unit is rated at 3.15A (model written on the Fuse: F. T3.15A E250V P).

What is the correct replacement fuse I should purchase?

Thanks!

cerbo gx
2 |3000

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

2 Answers
Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·
As you say the fuse should not blow before the supply is cut from the Aux port. That is normal.


The difference between a 1 A and 3 A fuse is negliable from a safety perspective. But the 3 A is superior, it has less resistance, less voltage drop, and more tolerance for a less than perfect connection, so it’s better to use it, but 1A will still work.

In this case when there is a current limited supply, it is less important, but I would never say a fuse is pointless, its purpose is in the event of a fault.

2 |3000

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

Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

The correct fuse size is 3.15 Amp.

There was a mistake in the original manual, it has since been corrected in the master and should be published Monday.

Did the supplied fuse blow somehow?

3 comments
2 |3000

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

svsimple avatar image svsimple commented ·

Thank you for the information Guy... and thanks for the private email as well!

The "slow blow" part in the manual was correct, right? So 3.15A Slow blow fuse?

BTW, no, the fuse is not blown. Since this is on a boat that is often away from shore, I always like to have spares on hand! :-)

0 Likes 0 ·
Show more comments