Welluck 50 Amp Generator Power Inlet Box, Nema 3R Power Inlet Box, Pb50,, 12500W ?ETL CERTIFIED?50A, 125/250V, 12500W GENERATOR INLET BOX with CS6375 inlet generator plug, designed for all 50 amp NEMA SS2-50 generator cord. 4-8 AWG Wire Supported in Max. The Best Partner for generator to house power cord, providing and maintaining continous backup power supply from the generator outside, especially when short of power, terrible weather... ?LARGER SPACE?The front panel is removable for wiring up. Comparing with old version, larger space makes the whole installation easier and faster, what's more, the heat-dissipation will be better and guarrantee long lifetime. ?4 WAYS CONNECTION?1.2" hole drilling position on 4 areas (Left, Right, Bottom Back) could connect to transfer switch and electric panel on multi-directions straightly. No more serious curving wire. ?WEATHERPROOF RUST RESISTANCE?The whole metal body is covered by anti-rust powder coating and the fliping cap could be shut down when it is not working in order to prevent dust, humid air and water.