Eaton 3MM612RRLB Residential Meter Stack - UL Listed
Part Number: 3MM612RRLB
Quick Summary
The Eaton 3MM612RRLB residential meter stack is a versatile multi-meter enclosure designed for outdoor electrical service entrances. Contractors often face delays and safety risks when assembling meters in exposed locations, making it crucial to have a robust, code-compliant solution. UL Listed certification supports safety and regulatory compliance in demanding environments, while the outdoor-rated enclosure withstands weather, UV exposure, and harsh conditions. This design aligns with residential metering workflows and utility requirements, enabling scalable metering with 125A service and an 800A bus. The result is reduced field troubleshooting, faster commissioning, and a clearer path to energy management across residential and small commercial applications.
Product Information
Extended Description
3MM612RRLB Eaton: Eaton 3MM residential meter stack, Multiple meter, 125A, Al, Bus:800A, Horn bypass, Outdoor, Depends on selected MCB, Five-jaw, Sockets:6, Three-phase in, single-phase out, A-B, BR2_, BRH2_, BRHH2_, BRX2, Ringless, Socket:125A, 120/208 Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM612RRLB
UPC
786849996468
Product Length/Depth
12.26 in
Product Height
66.5 in
Product Width
7.01 in
Product Weight
80 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 - 3MM612RRLB
Feature → Business Impact → Application: Multiple metering enables simultaneous monitoring and accurate billing for complex loads, improving energy management and reducing manual read errors in multi-tenant or mixed-use facilities. This supports data-driven decisions and faster utility reconciliation in residential developments and light commercial projects. Application: Outdoor, weather-exposed meter stacks reduce on-site weatherproofing time by providing a purpose-built enclosure that maintains performance and safety in street- and curbside installations. Feature → Business Impact → Application: 125A service with an 800A bus and five-jaw sockets provides flexible, scalable wiring options for mixed-phase configurations, enabling seamless expansion without rework. This translates to lower total project costs and faster due-diligence for utility interconnections in new housing developments or retrofits. Application: Utilities and contractors upgrading service entrances with dependable, future-ready metering capacity. Feature → Business Impact → Application: Six sockets and three-phase in, single-phase out capability simplify distribution topology, reducing the need for additional subpanels and minimizing voltage drop risk in compact layouts. This supports compact layouts for tight utility rooms or exterior meter banks in townhomes and small campuses. Application: Energy management retrofits and new-build residential blocks. Feature → Business Impact → Application: Outdoor-rated, UL Listed enclosure delivers weather protection and proven safety, lowering maintenance cycles and extending service life in exposed environments. This translates to lower lifecycle costs and higher reliability for remote installations. Application: Outdoor meter stacks serving multifamily dwellings, commercial clusters, and campus housing. Feature → Business Impact → Application: Comprehensive warranty coverage from Eaton provides post-installation support and predictable replacement timelines, reducing risk during commissioning and turnover. Application: Projects prioritizing long-term serviceability and supplier-resolved issues after installation.
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FAQs
The 3MM612RRLB is designed for outdoor mounting with a UL Listed enclosure, supporting 125A service and an 800A bus. Ensure appropriate outdoor-rated clearances, weatherproof connections, and adherence to local codes for multi-meter installations. Prioritize proper labeling, secure mounting, and compatibility with three-phase in/single-phase out configurations to simplify commissioning and future expansions.
Yes. The product supports a 125A service with an 800A bus rating and five-jaw sockets, enabling flexible wiring and future expansion. This makes it suitable for residential metering in multi-unit dwellings or light commercial applications where future load growth is anticipated.
The enclosure is outdoor-rated and UL Listed, providing weather resistance and safety for exterior installations. This reduces corrosion risk, supports compliant operation in varied climates, and simplifies maintenance planning for outdoor meter banks installed at properties, campuses, or utility-access locations.
Multi-meter capability streamlines meter deployment, reduces the need for additional subpanels, and accelerates commissioning. For developers and utilities, this translates into faster revenue readiness, lower labor costs, and improved energy usage visibility across tenants or facilities without sacrificing safety or compliance.
The product is covered under Eaton’s warranty policy (1 year from installation or 18 months from shipment, whichever occurs first). This provides assurance against manufacturing defects and supports post-installation service planning, minimizing downtime during turnover and ongoing maintenance cycles.