The Eaton 1004138ACH meter socket base is a ringless, 7‑jaw unit designed for outdoor 3‑phase service. Rated for 200 amps and built for a NEMA 3R enclosure, it serves as the base for a three‑phase meter socket in outdoor installations. This Eaton component, catalog number 1004138ACH, provides the essential electrical interface for a 3‑phase metering arrangement.
