Eaton PRL4B Pow-R-Line MLO Main Lug Panelboard is a 1200A, 480Y/277V, three-phase, four-wire distribution panelboard designed for commercial and industrial electrical feeders. As a main-lug-only (MLO) unit, it terminates incoming feeders with lugs rather than a built-in main breaker. The 480Y/277V rating and 1200A capacity define its voltage and current handling for a three hot-conductor plus neutral (four-wire) system.
