MDN4083LEA0122AMN22YNNNAX, Cutler Hammer, Magnum DS, type MDN, drawout mounted, narrow frame, 3P, 3PH, 800A, 100A current sensors and rating plugs, 600V, 42kA@600V, 40°C, bolt-on, manually operated, complete with factory installed 110-127Vac/dc shunt trip (ST), 208-250Vac second shunt trip (STA), 2A/2B auxiliary switch, mechanical trip indicator & OTS switch, interchangeable Digitrip 220, (LI) Long-Time and Instantaneous trip functions, load side lug terminals, solid state, low voltage power insulated case circuit breakers