Square D MGA Series circuit breakers are designed for installation in commercial and industrial electrical devices for protection against overcurrent and short-circuit conditions. These units feature a programmable electronic trip for delivering short-time, long-time and instantaneous current limiting functions and line- and load-side lug terminals to accommodate wires (copper / aluminium) of sizes ranging between 500 kcmil & 3 AWG. They can handle current ratings up to 800A and deliver interrupt capacities of 65kA at 240VAC, 35kA at 480VAC and 18kA at 600VAC.