Are your ears burning, Chris? Because I was not more than one hour ago standing in front of a newly installed system that is tripping 250A breakers. As we were trying to determine the best way to replace the single 250 with a pair of 175s combed together but maintaining the single run of 4/0. The manufacturer's ampacity spec would allow that and we have a combination of free-air and well-ventilated raceway between the battery and combiner which is giving us pause in how to best proceed.
Cheers, Sam [image: OnSite Energy] <https://onsiteenergyinc.com/> Sam Haraldson Operations Specialist (406) 551-6135 1515 N. Rouse Ave Bozeman, MT 59715 Locally owned and operated since 2012 [image: B Corporation] <https://onsiteenergyinc.com/bcorp>
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