Is #10 wire correct for my mini-split system on a disconnect?

Question

I have a disconnect box that is on a 50 amp breaker connected to a disconnect box using 6 AWG. In order to connect my mini split system to the disconnect do I use 10 AWG wire based on the information on the label?

Harper - Reinstate Monica · Accepted Answer

You can use any wire you want, 10 AWG or larger... so if you have some #6 lying around, don't make a run to the store lol.
As far as circuit breaker, 30A is fine.  What the label is telling you is that if you get nuisance trips, it's OK to bump to 35A or 40A.   Or even 45A, but that is not a commonly made breaker size, so that basically means 40A lol.   It might be available in fuses.

JACK · Answer

Yes, use #10 AWG. The minimum circuit capacity per the manufacturer must be followed. You will also have to replace the 50 Amp breaker with a 30 Amp breaker and pigtail the # 6 AWG to a piece of #10 AWG since the #6 won't fit (probably won't) into a 30 AMP breaker.

Answered by JACK on August 26, 2021

Is #10 wire correct for my mini-split system on a disconnect?

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