Abstract: The present disclosure provides a mounting base, a buss bar with slots and a slotted extension therebetween, and a terminal lug coupled to the buss bar, the terminal lug being adapted to couple directly a conductor to the buss bar at the slotted extension without intermediate interfaces between the conductor and the buss bar. The terminal lug includes a bottom dimensioned to fit on the underside of the slotted extension, and sides dimensioned to fit inside the slots. The terminal lug is restrained from sliding off the slotted extension by being disposed in a lug clearance recess formed in the mounting base that is at a lower elevation than a buss bar support surface. Thus, the system and method provides a direct connection between the conductor and the buss bar, while retaining the terminal lug to the buss bar before the terminal lug is tightened to the buss bar.