Aluminum panel board terminals feature NEMA-standard spacing (1/2-in. diameter stud holes spaced 1-3/4-in. apart). The lugs are Listed to the UL Wire Connector Standards UL486A-486B, CSA Certified to C22.2 No. 65. Additionally, these are 600 V Rated with AL9CU dual rating for use with copper and aluminum conductor. Two sizes with range taking conductor ports cover from #2 AWG through 750kcmil, the conductor ports are in a stacked arrangement to save space. Each size offers a configuration to accommodate 2, 3, or 4 conductors.