Eaton Main Terminal Box, 600A, Copper, NEMA 3R, Overhead/underground, Four-wire, Three-phase, 120/208V, (2) 250-500 kcmil Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the. Eaton Main Terminal Box, 600A, Copper, NEMA 3R, Overhead/underground, Four-wire, Three-phase, 120/208V, (2) 250-500 kcmil Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the. The MPD-EMM-1PH-600A-ML-AL-N3R-M1 from Larson Electronics is an Electrical Meter Main Distribution Unit that enables the connection of meter branch units in industrial work areas. I-line power distribution panelboards are for use on AC or DC systems. The I-Line power distribution panelboard is the most versatile on the market. Schneider Electric aims to achieve Net Zero status by 2050 through supply chain partnerships, lower impact materials, and circularity via our ongoing “Use Better, Use Longer, Use Again” campaign to extend product lifetimes and recyclability. Rated for single-phase 120/240V AC, this 2-pole, 3-wire meter socket is protected by a.