MDN4083LEA0422NMNH2EHNMAX, Cutler Hammer, Magnum DS, type MDN, drawout mounted, narrow frame with factory installed block close PB plastic frame padlockable pushbutton cover, 3P, 3PH, 800A, 400A current sensors and rating plugs, 600V, 42kA@600V, 40°C, bolt-on, manually operated, complete with factory installed 48Vdc UVR, interchangeable Digitrip 220, LI - Long-Time and Instantaneous trip functions, load side lug terminals & 2A/2B auxiliary switch, solid state, low voltage power insulated case circuit breakers