MDN4083LEA0322NMNNNENCNCX, Cutler Hammer, Magnum DS, type MDN, drawout mounted, narrow frame, 3P, 3PH, 800A, 300A current sensors and rating plugs, 600V, 42kA@600V, 40°C, bolt-on, manually operated, complete with interchangeable Digitrip 220, LI - Long-Time and Instantaneous trip functions, load side lug terminals, upper terminal voltage connection, Castell keylock, solid state, low voltage power insulated case circuit breakers, shipped as drawout ACB in narrow cassette, without shutters, not wired