Schneider Electric/Square D QO 2-Pole Standard miniature circuit breaker features thermal magnetic molded case for extra protection. It accommodates copper or aluminum wire size of 8 - 2 AWG and offers effective overload/short circuit protection for added safety. Circuit breaker measures 1.500 Inch x 2.910 Inch x 3.120 Inch. It is ideal for QO load centers, NQOD panel boards, OEM interiors and speed-D switchboard distribution panels. It features reliable box lug terminal and VISI trip indication for convenience. Breaker requires three spaces and uses plug-on mounting to hold firmly. Circuit breaker meets UL/CSA/HACR standards.