Eaton 3MM512RRLACBC Residential Meter Stack - UL Listed
Part Number: 3MM512RRLACBC
Quick Summary
The Eaton 3MM512RRLACBC is a residential meter stack that consolidates multiple metering for outdoor service enclosures. This design addresses space constraints, wiring complexity, and field wiring errors common in multi-tenant installations. UL Listed certification underpins safety and reliability, while outdoor-rated construction supports rugged, year-round service. With 120/208 Vac capability and three-phase in with single-phase out, it aligns with Eaton metering products and current utility practices. This solution delivers scalable metering capacity and simplified installation, reducing total cost of ownership for property managers, electrical contractors, and developers looking to optimize outdoor metering footprints.
Product Information
Extended Description
3MM512RRLACBC Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Al, Bus:800A, No bypass, Outdoor, Depends on selected MCB, Five-jaw, Sockets:5, Three-phase in, single-phase out, B-C, BR2_, BRH2_, BRHH2_, BRX2, Ringless, Socket:125A, 120/208 Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM512RRLACBC
UPC
782116890798
Product Length/Depth
12.26 in
Product Height
57.5 in
Product Width
7.01 in
Product Weight
106 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
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 3MM512RRLACBC
Feature → Business Impact → Application: Multiple metering in one outdoor enclosure reduces enclosure footprint and wiring routes, lowering installation time and material costs for multi-tenant buildings. Application: Ideal for residential complexes and light commercial projects seeking centralized metering with scalable capacity. Feature → Business Impact → Application: Outdoor-rated, UL Listed enclosure provides field-safe operation in exterior environments, minimizing weather-related maintenance and risk. Application: Suitable for exterior meter stacks on apartment buildings, townhomes, and commercial perimeters. Feature → Business Impact → Application: Five-jaw sockets and five connections support secure terminations with reliable contact integrity, reducing field rework and downtime. Application: Critical for busy service entrances where uptime matters and terminations must be dependable. Feature → Business Impact → Application: Flexible metering with three-phase in and single-phase out supports diverse load profiles and future expansions without reconfiguration. Application: Enables phased metering upgrades for growing communities or changing utility requirements. Feature → Business Impact → Application: Eaton’s warranty and spec alignment deliver predictable support and compliance, easing procurement and maintenance planning. Application: Streamlines vendor interactions and ensures ongoing compliance with utility standards.
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FAQs
When installing the Eaton 3MM512RRLACBC, ensure sufficient outdoor mounting space and proper enclosure rating for exterior use. Confirm compatibility with the MCBs in your panel and plan for three-phase in, single-phase out configurations. Verify five-jaw socket terminations are accessible and that conductor routing aligns with utility requirements to minimize field rewiring and delays.
The unit supports a 125A service with an 800A bus, operates at 120/208 VAC, and provides three-phase in with single-phase out. It features five-jaw sockets and five terminations, enabling multiple metering in one outdoor enclosure. This configuration suits residential and light commercial metering scenarios and provides scalable capacity for future loads.
Yes. The 3MM512RRLACBC is designed for outdoor use and is UL Listed, ensuring safety and compliance for exterior metering installations. Its multi-meter capability, robust enclosure, and compatibility with common MCB configurations make it well-suited for multi-tenant housing, mixed-use properties, and outdoor meter clusters.
The device is UL Listed, confirming adherence to recognized safety and performance standards for electrical equipment. This certification supports compliance with electrical codes for residential and light commercial metering installations, and it aligns with Eaton’s warranty and service provisions for reliable operations.
The meter stack reduces enclosure space, consolidates metering, and simplifies wiring, which lowers installation time and material costs. Its rugged outdoor design minimizes weather-related maintenance, while scalable metering supports future load growth without new enclosures. Overall, these factors contribute to a faster payback and lower total cost of ownership.