Copper-to-copper connections, calibrated for optimum trip performance, heat resistant thermoset cases and covers, cemented calibration screw. May be used, when marked to accept, with american switch, arrow hart, bryant, general switch, gte, sylvania, most ite, murray, westinghouse type br, challenger, crouse-hinds. 15 to 30 amp 14 - 8 cu or 12 - 8 al awg wire, 35 to 60 amp 8 - 3 cu or 8 - 2 al awg wire, 70 to 100 amp 6-1/0 cu or 4 - 1/0 al awg wire. Also known as -GE THQL2180 80A 120/240V 2P Plug-In Circuit Breaker-80A 2P 2In Ge Circuit Breaker By Ge Electrical-GE Distribution THQL2180 Q-Line Molded Case Circuit Breaker 80 Amp 120/240 Volt