What does Continuous Rating mean?

Can I safely charge with up to 600A or does “continuous rating” mean something else?

Yes, as far as the bus bar is concerned.

timselectric said:

Yes, as far as the bus bar is concerned.

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I’m curious, would a T class fuse be sized at 600A then or better to allow some room like 700A T class?

Currently I have a 400A T class fuse on this 600A busbar. My Victron smart shunt records around 200A flowing in when I have no load running. I’d like to double my panels in the future, so starting to plan it so I don’t blow a fuse or worse.

Fuse should be sized for what it's protecting.
That's usually the wiring. Are you planning on using huge wires? (750kcml)

Double post

timselectric said:

Fuse should be sized for what it's protecting.
That's usually the wiring. Are you planning on using huge wires? (750kcml)

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I’d upgrade the wires, yes. Currently I have Windy Nation 4/0 which they say is good to ~440A. I haven’t investigated how difficult it is to find wire this size or cost.

Another build option I’ve been considering is to add an identical busbar (600A bluesea and 400A T class), so to have two busbar banks both attached to a main 1000A busbar. I’m not experienced though with how these two would cooperate -

My understanding is if everything is balanced it’ll be okay. But if unbalanced, if one busbar of batteries reaches capacity and a surge flows to the other busbar it could pop the fuse.

Here’s what it currently looks like:

I don't see any fuses for the wires coming from the top positive bus bar. Assuming that they are going to inverters or other loads.

Continuous would be 3+ hours at max without issues of heat etc. As opposed to a short surge rating.

timselectric said:

I don't see any fuses for the wires coming from the top positive bus bar. Assuming that they are going to inverters or other loads.

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100A to the inverters and 150A to the charge controller