Square D QOB240GFI 40 Amp Miniature Circuit Breaker 10 KA 120~240 VACProduct: Miniature circuit breaker Range : QO Line Rated Current: 40 A System Voltage: 120 V AC 120 240 V AC Mounting Type: Bolt on Number of Poles: 2P Circuit Breaker Type: Ground fault protecting class A 6 mA Ratings: Not rated Electrical Connection: Box lugs Interrupt Rating: 10 kA at: 120 240 V AC 50 60 Hz 10 kA at: 120 V AC 50 60 Hz Number of Panel Spaces: 2 Wire Size: AWG 12 AWG 4 (aluminium) AWG 14 AWG 6 (copper) Height: 4. 12 in Depth: 2. 91