Some AHJs have issues with Classified breakers though, you should ask. The way it works is that all PANELS are ONLY UL listed with the breakers made for it, meaning the same mfr. But BREAKERS can be made and tested to use in competitive panels if the BREAKER mfr tests them in SPECIFIC panels made by competitors (at their own expense). Those breakers are called "classified", instead of "listed". Somewhere in the documentation they will list those SPECIFIC models of competitor's panels that they can be used in. You CANNOT (contrary to what salesmen tell you) use them willy-nilly anywhere they might fit.
But because the PANEL will have a sticker on it that specifically states the ONLY breakers that can be used are those made by the same mfr and UL LISTED for it, some AHJs will not allow classified breakers to be used. Arguments can be made and won on that point, but arguing with an AHJ is often a losing proposition because even if you win the argument, you are likely going to suffer in some other way.
