c3controls Series 1100 (AC Rated) & Series 1110 (DC Rated) MCBs are packed with leading features — like a 277 VAC rating all the way to 63 amps. (Yes - even in our D curve rating!) | 10kA interrupt rating | UL 489B, UL 489 & UL 1077 versions | Full range of AC and DC application ratings. Oh, and did we mention our lifetime warranty?