MDN4083LEA0522NMNNNENHNWX, 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 interchangeable Digitrip 220, LI - Long-Time and Instantaneous trip functions, load side lug terminals, upper terminal voltage connection, operations counter, Ronis keylock, solid state, low voltage power insulated case circuit breakers, shipped in drawout narrowcassette, with shutters and pre-wired