A solid state contactor assembly, comprising: at least one solid state switch electrically connected to a first bus bar via at least one conductive plate, the solid state switch controlling a flow of current between the first bus bar and a second bus bar; and a switch control (82, 142) operable to control the solid state switch, characterised by: a current sensor formed along a cross section of one of the first or second bus bar (22, 24) such that the current sensor separates its associated bus bar into two separate bus bar portions (22a, 22b) and such that a flow of current between the two separate bus bar portions (22a, 22b) passes through the current sensor, wherein the switch control (82, 142) is in communication with the current sensor; a fuse connection providing a current path between distinct areas (122a, 122b) of a selected one of the first or second bus bar (22, 24), wherein in response to an overcurrent condition the fuse connection terminates and prevents a flow of current between the distinct areas (122a, 122b) of the selected bus bar (22, 24); and a housing surrounding the fuse connection and partially surrounding the distinct areas (122a, 122b) of the selected bus bar (22, 24). at least one solid state switch electrically connected to a first bus bar via at least one conductive plate, the solid state switch controlling a flow of current between the first bus bar and a second bus bar; and a switch control (82, 142) operable to control the solid state switch, characterised by: a current sensor formed along a cross section of one of the first or second bus bar (22, 24) such that the current sensor separates its associated bus bar into two separate bus bar portions (22a, 22b) and such that a flow of current between the two separate bus bar portions (22a, 22b) passes through the current sensor, wherein the switch control (82, 142) is in communication with the current sensor; a fuse connection providing a current path between distinct areas (122a, 122b) of a selected one of the first or second bus bar (22, 24), wherein in response to an overcurrent condition the fuse connection terminates and prevents a flow of current between the distinct areas (122a, 122b) of the selected bus bar (22, 24); and a housing surrounding the fuse connection and partially surrounding the distinct areas (122a, 122b) of the selected bus bar (22, 24). a current sensor formed along a cross section of one of the first or second bus bar (22, 24) such that the current sensor separates its associated bus bar into two separate bus bar portions (22a, 22b) and such that a flow of current between the two separate bus bar portions (22a, 22b) passes through the current sensor, wherein the switch control (82, 142) is in communication with the current sensor; a fuse connection providing a current path between distinct areas (122a, 122b) of a selected one of the first or second bus bar (22, 24), wherein in response to an overcurrent condition the fuse connection terminates and prevents a flow of current between the distinct areas (122a, 122b) of the selected bus bar (22, 24); and a housing surrounding the fuse connection and partially surrounding the distinct areas (122a, 122b) of the selected bus bar (22, 24).