need a breaker square D homeline with up to 3/0 wire

I was incorrect that a breaker was available with a 3/0 post. up to 100a breakers only have a 2/0 max post. any suggestions on fixing this issue. its going into a simens solar ready panel that came with a 70A solar breaker and will accept up to 100A breaker. I do not need more than then 70A but will likely have to go to at least the 80A to get closer to size. would a crimp on 3/0 to 2/0 terminal pin be an appropriate solution? Thanks went to finish the wiring and now this is the only thing holding up the system. It was my error misreading the breaker specs originally and I thought they went up to 4/0 and it was 4awg.

Check the specs on the homline, QO breakers are good for 48 vdc but only to 70 amps. Also aic is only 5k not the 10k usually seen with solar breakers.
Midnight solar has breakers for dc in the range your looking at. They won't fit your panel though.
For 3/0 to 2/0 to much chance for a failure with a crimp. Better to get stuff that will work with 3/0.

Could you route to a fused disconnect that then runs 4awg to the breaker panel?

This is an AC circuit right?

I don't think there is a code legal way to resolve this but the terminal pin may be good enough in your own judgement. I think I would be happy with it but idk, it doesn't squish like a stranded wire.

I should have asked what this is for. Tend to think dc in terms of solar. Square D homline are the cheap line. Normally breaker or fuse at 1.25 times wire current rating to protect the wire.

nuke said:

Could you route to a fused disconnect that then runs 4awg to the breaker panel?

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Likely the route that I will have to take. only had to do 3/0 due to distance from solark to main panel

scrubjaysnest said:

I should have asked what this is for. Tend to think dc in terms of solar. Square D homline are the cheap line. Normally breaker or fuse at 1.25 times wire current rating to protect the wire.

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understandable, this is the grid line from solark to main panel.

timselectric said:

https://www.gordonelectricsupply.com/p/Morris-90986-1-0-3-0-Pin-Terminal-Offset/6288174?gad_source=1&gclid=CjwKCAiAq4KuBhA6EiwArMAw1IP0ooEMzps4llBaou-XtiqoOB_kPjM56ji9Zc0OlrBAD6xYxkW1GBoCXJcQAvD_BwE

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This is our long term solution most likely per my electrician. wish they had a 3/0 to 2/0 he doesnt like that it steps down so much.

Subestile said:

This is our long term solution most likely per my electrician. wish they had a 3/0 to 2/0 he doesnt like that it steps down so much.

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They are available in multiple sizes. I just linked the first one that popped up.

Reduce it to 2/0 to get it into the breaker. Split bolts or other means. I almost had to do the same thing. Running from house to barn is 220', so ran most of it with #1 Cu but had to go to Romex through house. Only Al available so had to run 2/0 because of distance. Fortunately the 100 amp breaker takes 2/0, but I had discussed it with the electrician.