MDN4083LEA0522NMNFNENNDCX, Cutler Hammer, Magnum DS, type MDN, drawout mounted, narrow frame, 3P, 3PH, 800A, 250A current sensors and rating plugs, 600V, 42kA@600V, 40°C, bolt-on, manually operated, complete with factory installed 220-250Vdc UVR, interchangeable Digitrip 220, LI - Long-Time and Instantaneous trip functions, load side lug terminals and latch check switch for external wiring, solid state, low voltage power insulated case circuit breakers, shipped in drawout narrow cassette, without shutters, unwired