Invertible for bottom feed application|Ground bar field installed (select skus with "G" suffix will have ground bar factory installed)|Combination head screw on the neutrals, ground, trim, upper pan, and bond screw provide installation flexibility|A rigid, sturdy base pan provides the ruggedness required for the most harsh applications|All devices convertible from main lug to main breaker and vice versa|Mounting tabs on the trim hold it in place on the load center, freeing up both hands to drive the trim screws|The prepositioned bond screw eliminates bond strap/screw assemblies, and reduces the risk of losing components in the field|The patented INSTA-WIRE neutral/ground system allows for faster installation because screws are backed out, ready for wire insertion|The visible neutral and grounds system aids in the insertion of conductors|Single side inboard neutral on 24 circuits and below, dual on 30 circuits and above|150 A load regulation|Aluminum busbar|Indoor enclosure|60/75 deg C temperature|Combination mounting