Reliance Controls Corporation PBN30 30-Amp NEMA 3R Power Inlet Box for Generators Up to 7,500 Running Watts Outdoor, raintight NEMA 3R non-metallic power inlet box Maximum generator running watts: 7,500 Maximum generator input: 30A @ 125/250 VAC Patented design provides over 100 cubic inches of generous wiring space Slide-out base allows easy access to flanged inlet