Built for heavy residential applications, this 80-amp, 2-pole miniature circuit breaker from ABB Electric's Q-Line series provides reliable long-time and instantaneous trip functions. Designed as a plug-in version for easy connection to load centers and lighting panels, it features a quick-make, quick-break mechanism for enhanced safety and performance. This breaker is suitable for reverse feed applications and is marked for HACR (High-Altitude Current Rating) use, making it a versatile choice for HVAC equipment and sub-panels..The ABB Electric THQL2180 is a 2-pole, 80-amp miniature circuit breaker from the Q-Line series. It operates on a system voltage of 120/240 Vac and features a thermal magnetic trip technology with a fixed long-time and instantaneous trip function (LI). The interrupting capacity is 10,000 AIC at both 120 Vac and 120/240 Vac. It is designed for plug-on mounting and is suitable for reverse feed applications. The breaker is marked for HACR use and complies with GSA standards. It is UL listed with file number E11592 and meets CSA C22.2 No. 5 and UL 489 standards.