MDN4083LEA0522NMNG4NHKCAX, Cutler Hammer, Magnum DS, type MDN, drawout mounted, narrow frame with factory installed block close PB plastic frame padlockable pushbutton cover, 3P, 3PH, 800A, 500A current sensors and rating plugs, 600V, 42kA@600V, 40°C, bolt-on, manually operated, complete with factory installed 32Vdc UVR, interchangeable Digitrip 220, LI - Long-Time and Instantaneous trip functions, latch check switch for external wiring, load side lug terminals, 4A/4B auxiliary switch, mechanical trip indicator & kirk keylock, solid state, low voltage power insulated case circuit breakers