HMCP100R3C, Westinghouse,Eaton,Cutler Hammer, Series C, type HMCP, F Frame, 3P, 3PH, 100A, 600V, 65kA@480V, feed-thru, complete with non-interchangeable trip with I - Instantaneous Protection Only, non-aluminum line & load side lug terminals, MCP, motor circuit protector, magnetic range 300-1000A, motor FLA 23.0-84.5A, magnetic only, molded case circuit breakers