A circuit protection apparatus (8, 8', 54), comprising: a pair of separable contacts; an operating mechanism configured to open and close the pair of separable contacts; an electronic trip unit (14, 57) structured to cooperate with the operating mechanism to trip open the pair of separable contacts, the electronic trip unit (14, 57) storing a plurality of trip parameter combinations for the pair of separable contacts, wherein each of the trip parameter combinations specifies a certain value for each of a plurality of first individual trip parameters for the pair of separable contacts, the electronic trip unit (14, 57) further storing a plurality of values for a second individual trip parameter for the pair of separable contacts, the second individual trip parameter being different from each of the first individual trip parameters, each of said first individual trip parameters and said second individual trip parameter specifying a condition for tripping open the pair of separable contacts to protect a circuit from overcurrent conditions; and a first multi-position selector moveable among a plurality of first predetermined positions and configured to enable selection of one of the plurality of first predetermined positions, each of the first predetermined positions corresponding to a respective one of the trip parameter combinations, wherein the electronic trip unit (14, 57) is structured to, responsive to a chosen one of the plurality of first predetermined positions being selected by the first multi-position selector, cause the one of the trip parameter combinations corresponding to the chosen one of the plurality of first predetermined positions to be used by the electronic trip unit (14, 57) to determine whether to cause the operating mechanism to trip open the separable contacts; a second multi-position selector moveable among a plurality of second predetermined positions and configured to enable selection of one of the plurality of second predetermined positions, each of the second predetermined positions corresponding to a respective one of the values for the second individual trip parameter, wherein the electronic trip unit is structured to, responsive to a chosen one of the plurality of second predetermined positions being selected by the second multi-position selector, cause the one of the values for the second individual trip parameter corresponding to the chosen one of the plurality of second predetermined positions to also be used by the electronic trip unit to determine whether to cause the operating mechanism to trip open the pair of separable contacts. a pair of separable contacts; an operating mechanism configured to open and close the pair of separable contacts; an electronic trip unit (14, 57) structured to cooperate with the operating mechanism to trip open the pair of separable contacts, the electronic trip unit (14, 57) storing a plurality of trip parameter combinations for the pair of separable contacts, wherein each of the trip parameter combinations specifies a certain value for each of a plurality of first individual trip parameters for the pair of separable contacts, the electronic trip unit (14, 57) further storing a plurality of values for a second individual trip parameter for the pair of separable contacts, the second individual trip parameter being different from each of the first individual trip parameters, each of said first individual trip parameters and said second individual trip parameter specifying a condition for tripping open the pair of separable contacts to protect a circuit from overcurrent conditions; and a first multi-position selector moveable among a plurality of first predetermined positions and configured to enable selection of one of the plurality of first predetermined positions, each of the first predetermined positions corresponding to a respective one of the trip parameter combinations, wherein the electronic trip unit (14, 57) is structured to, responsive to a chosen one of the plurality of first predetermined positions being selected by the first multi-position selector, cause the one of the trip parameter combinations corresponding to the chosen one of the plurality of first predetermined positions to be used by the electronic trip unit (14, 57) to determine whether to cause the operating mechanism to trip open the separable contacts; a second multi-position selector moveable among a plurality of second predetermined positions and configured to enable selection of one of the plurality of second predetermined positions, each of the second predetermined positions corresponding to a respective one of the values for the second individual trip parameter, wherein the electronic trip unit is structured to, responsive to a chosen one of the plurality of second predetermined positions being selected by the second multi-position selector, cause the one of the values for the second individual trip parameter corresponding to the chosen one of the plurality of second predetermined positions to also be used by the electronic trip unit to determine whether to cause the operating mechanism to trip open the pair of separable contacts.