The ABB Q-Line THQLQ203020 Quad Circuit Breaker offers versatile power protection for residential and commercial electrical systems. This thermal magnetic plug-on breaker features a unique quadplex design, providing two 20A single-pole circuits and one 30A two-pole circuit in a single panel space. It is compatible with new and existing single-phase ABB and GE by ABB PowerMark™ load centers, with or without wing stabs, offering twice the circuits in the same panel space. Designed for reliability and ease of installation, it's an ideal solution for expanding circuit capacity..The ABB THQLQ203020 is a Q-Line Quad Circuit Breaker with a 10 kAIC interrupting capacity. It operates at 120/240V and features a thermal magnetic trip technology with fixed long-time and instantaneous trip functions. The breaker is designed for plug-in mounting and is suitable for reverse feed applications. It supports wire ranges of (2) #14-8 AWG CU and #12-8 AWG AL. The product is classified under UL File # E11592 and meets HACR and SWD standards.