Eaton 3MM212RRLC Residential Meter Stack - UL Listed
Part Number: 3MM212RRLC
Quick Summary
The Eaton 3MM212RRLC residential meter stack is a multi-metering power distribution solution designed for shared residential and light-commercial service entrances. It addresses wiring complexity and space constraints on job sites by consolidating metering in a compact, outdoor-rated enclosure. UL Listed for electrical safety, it helps ensure compliance and reduces audit risk across installations. This meter stack supports multiple metering with three-phase in, single-phase out, and is compatible with Eaton MCB configurations, delivering scalable power management while minimizing installation time and field wiring hazards. Ideal for utilities, developers, and property managers, it enables centralized, reliable service distribution in outdoor environments.
Product Information
Extended Description
3MM212RRLC Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Cu, Bus:800A, No bypass, Outdoor, Depends on selected MCB, five-jaw, Sockets:2, 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
3MM212RRLC
UPC
782114990681
Product Length/Depth
12.26 in
Product Height
41.8 in
Product Width
7.01 in
Product Weight
56 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 - 3MM212RRLC
Feature: Multiple metering design enables independent monitoring per tenancy, reducing differential billing disputes and improving energy transparency. Business Impact: simplifies revenue assurance and tenant transparency in multi-occupancy buildings. Application: multi-tenant residential and light-commercial projects. Feature: Three-phase in, single-phase out topology with 125A socket and 120/208 Vac capability. Business Impact: supports flexible service configurations and safe, balanced load distribution with a common bus rating of 800A. Application: distributed generation sites, apartment complexes, and small campuses needing phased metering. Feature: Outdoor-rated, ringless enclosure design with robust construction. Business Impact: durable, weather-ready installation reduces maintenance cycles and protection costs. Application: exterior electrical rooms and outdoor service entrances where weather exposure is a factor. Feature: Five-jaw compatibility and sockets configured for select MCB systems (BR2_, BRH2_, BRHH2_, BRX2). Business Impact: faster, plug-and-play field wiring with fewer custom adaptations. Application: projects requiring rapid deployment and standardized Eaton MCB integration. Feature: UL Listed certification and Eaton warranty coverage provide risk mitigation. Business Impact: supports compliance workflows, audit readiness, and predictable service life, reducing total cost of ownership. Application: regulated environments, commissioning, and ongoing maintenance programs.
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FAQs
The 3MM212RRLC is designed for outdoor, multi-metering service entrances and supports three-phase in, single-phase out configurations. It uses 125A sockets and an 800A bus, with five-jaw sockets compatible with Eaton MCBs BR2_, BRH2_, BRHH2_, and BRX2. Ensure proper enclosure, mounting clearances, and field wiring per the catalog guidance.
Key specs include a 125A socket rating, 120/208 Vac operating voltage, three-phase in and single-phase out topology, and an 800A bus. Outdoor installation is supported, and the unit is UL Listed for safety compliance. Verify MCB compatibility and recommended wiring practices in the Eaton datasheet.
Yes. Its multi-metering capability is ideal for separating tenant loads, enabling accurate billing and independent load monitoring. Outdoor deployment and compatibility with common Eaton MCB configurations simplify phased metering installations in multi-tenant properties while meeting typical utility requirements.
The Eaton 3MM212RRLC is UL Listed, confirming adherence to established electrical safety standards. This certification supports smoother audits, compliance with electrical codes, and standardized safety expectations for outdoor metering installations.
Eaton provides a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This, combined with Eaton's technical support, helps reduce risk during deployment and ensures quicker issue resolution in field service.