Square D PowerPact family is industry leading innovation and protection for heavy duty commercial and industrial appliacations Common catalog numbers, standardized ratings, and a full range of field-installable accessories make product selection, installation and maintenance easier than ever. This connector accessory is designed to be used with PowerPact P-frame or M-frame2 and 3 poles 600VAC circuit breakers or molded case switches with Electronic trip units with sensor rating of 250A to 800A. Terminal wire range for this accessory is (3) 3/0 AWG - 500 kcmil aluminium or copper Connector accessory is coming with tapped hole for control wire, 3 lugs per kit