Maximize your panel space with the ABB Q-Line THQLQ154015 circuit breaker. This innovative quad breaker offers twice the circuits in the same panel space, featuring a combination of 15A single-pole and 40A double-pole protection. It is code compliant and compatible with new and existing single-phase ABB and GE by ABB PowerMark™ load centers, with or without wing stabs. Designed for reliability and ease of installation..The ABB Q-Line THQLQ154015 is a residential circuit breaker designed for 120/240V systems. It features a unique quad configuration with three poles: two 15A single-pole breakers and one 40A double-pole breaker. The breaker has an interrupting capacity rating of 10 kAIC at both 120V and 120/240V. It utilizes a non-interchangeable trip style and a Q-Line frame type. The long time and instantaneous trip functions are fixed. Wire termination is supported for copper and aluminum conductors, with specific ranges provided for the single-pole and double-pole circuits. The breaker is suitable for reverse feed applications and is marked for HACR and SWD.