Used for overload and short-circuit protection of your electrical system. It is rated 240 Vac, 250 Amp maximum and can be used in bolt-on constructions. This breaker is compatible with Square D individual enclosures, metering devices, panelboards or switchboards that accept Q-Frame breakers. This PowerPact Q-Frame circuit breaker is a 2-pole breaker rated for 125 Amp. This breaker has a breaking capacity of 10kA 240-Volt operational voltage. It has a continuous current rating of 80 % and is a G breaker rating. This unit mount is a thermal-magnetic trip with a magnetic hold of 1200 Amp and a magnetic tripping current of 2400 Amp. This breaker complies to IEC, CSA and UL Listed standards. It's rated for 240 Vac (208Y/120 Vac for 3-pole 100 kA) and are available with UL Listed interruption ratings from 10 kA - 100 kA.