Eaton 1MM512RC Residential Meter Stack - UL Listed Outdoor
Part Number: 1MM512RC
Quick Summary
Eaton residential meter stack is a multi-meter power distribution solution designed for outdoor residential installations. Electricians often confront space constraints and wiring complexity when adding meters in outdoor enclosures, making a compact, scalable solution highly valuable. UL Listed certification, an outdoor-rated enclosure, and broad utility approvals underpin compliance and field confidence in challenging environments. With a 125A service, 5 sockets, and an 800A bus rating, it enables scalable metering while reducing labor and installation risk. This product line supports residential metering needs and expands to light commercial applications, delivering reliability and cost efficiency for utilities and contractors alike.
Product Information
Extended Description
1MM512RC Eaton: Eaton residential meter stack, Amperage rating: 125A, Socket rating: 125A, Bus rating: 800A, Outdoor, Interrupt rating depends on selected main circuit breaker, Single-phase in/single-phase out, 5 Sockets, Copper, Ring, 120/240 Vac
Product Name
Eaton residential meter stack
Catalog Number
1MM512RC
UPC
782114989982
Product Length/Depth
7.01 in
Product Height
57.5 in
Product Width
12.26 in
Product Weight
72 lb
Warranty
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 Product, whichever occurs first.
Certifications
UL Listed
Type
Multiple metering
Utility approvals
ID : Idaho Power OR : Idaho Power WA : Seattle City Light AK : Anchorage Municipal Light & Power NV : NV Energy FL : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) IN : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) KY : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) NC : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) OH : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) SC : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) WA : Puget Sound Energy WA : Tacoma Public Utilities NC : Dominion VA : Dominion
Interrupt rating
Depends on selected main circuit breaker
Enclosure
Outdoor
Bus Rating
800 A
Phase
Single-phase in, single-phase out
Voltage rating
120/240 V
Amperage Rating
125A
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 1MM512RC
Outdoor-rated enclosure and rugged construction minimize weather-related failures, reducing service calls and maintenance costs while ensuring reliable operation in harsh environments. This translates to lower total cost of ownership for property managers and electrical contractors, especially in outdoor installations where exposure to the elements is a constant factor. The Eaton 1MM512RC provides 5 sockets and a 125A amperage rating, paired with an 800A bus rating, enabling multiple metering points without sacrificing performance or safety in single-phase service. In practice, building managers gain faster meter installs and easier future expansions, supporting tenant-ready retrofits and new construction with predictable performance. The single-phase in/out configuration at 120/240V simplifies wiring schemas, reduces labeling complexity, and accelerates commissioning while improving fault isolation for technicians. The interrupt rating depends on the selected main circuit breaker, which gives system designers flexibility to match service demands with precise protection. This approach mitigates nuisance tripping and ensures a safer, code-compliant installation. The UL Listed status, outdoor enclosure, and broad utility approvals (Idaho Power, Puget Sound Energy, Seattle City Light, among others) streamline permit processes and utility interconnection. Compatibility with Eaton metering components and modular design supports straightforward upgrades, service jumps, and scalable metering strategies for growing residential portfolios. Industry insight shows that multi-meter stacks like this are increasingly essential for multi-dwelling developments, energy monitoring programs, and retrofit projects where reliability, ease of maintenance, and rapid deployment drive project ROI.
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FAQs
The 1MM512RC is designed for outdoor single-phase metering with five sockets and an 800 A bus rating. Plan the enclosure location, provide proper clearances, and connect conductors to the copper bus per the catalog and local codes. Use a licensed electrician to ensure correct main breaker sizing and adhere to UL Listed installation practices for outdoor metering.
Interrupt rating is dependent on the main circuit breaker you select for protection. The meter stack supports an 800 A bus, but the effective interrupt rating is defined by the chosen main breaker. Verify the breaker rating aligns with service demands and consult the Eaton specifications to avoid under- or over-protection that could lead to nuisance trips or unsafe conditions.
The unit is intended for multi-metering with multiple sockets and a robust bus rating, making it suitable for multi-tenant housing and light commercial applications. Its outdoor enclosure and UL Listed certification support external installations, while its 125A service and 5 sockets accommodate several meters in a single, organized stack.
The unit is UL Listed and shipped in an outdoor-rated enclosure. Utility approvals include multiple programs across Idaho Power, Seattle City Light, Puget Sound Energy, and other MEG-affiliates, reflecting broad acceptance for interconnection and metering installations in diverse jurisdictions.
The rugged outdoor enclosure, UL Listing, and modular metering design reduce failure rates and simplify future upgrades, lowering maintenance costs. Its compatibility with Eaton’s metering ecosystem supports phased expansions, while the 25-year style durability expectations and a one-year warranty provide predictable asset lifecycle planning and faster project payback in deployment-heavy programs.