Square D by Schneider Electric EZM3EXT6 Meter Box

EZM3EXT6 is a 6-inch copper bus extension for Square D EZ Meter-Pak meter centers, delivering a 1200 A, three-phase, four-wire bus path in a compact 6‑inch form factor. Built for indoor and outdoor installations, this unit is UL-listed and configured for NEMA 1 surface-mount use, making it suitable for wall-mounted meter centers and other EZ Meter-Pak configurations. The copper (Cu) bus bars provide the conductive path needed to add additional metering circuits within an EZ Meter-Pak center, enabling scalable expansion without replacing the entire panel. Designed to work with EZ Meter-Pak modules, EZM3EXT6 supports three-phase metering setups common in commercial and multi-tenant residential buildings, preserving the centralized layout of the EZ system while increasing capacity. This extension is rated up to 1200 A, and its 6-inch length aligns with its model designation to help installers space new meters efficiently within the same meter center footprint. Ideal applications include expanding a meter center to accommodate additional tenants or circuits in a single EZ Meter-Pak installation, where compact, compliant bus extensions are needed to maintain proper electrical clearances and safety margins.