Invertible for bottom feed application|All devices are provided with 2 factory installed ground bars|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|Dual neutrals on all configurations|225 A load regulation|Tin plated copper busbar|Indoor enclosure|4738 size|60/75 deg C temperature|Combination mounting|Feed-through lug