Eaton 3MM412R2ACBC Residential Meter Stack - UL Listed
Part Number: 3MM412R2ACBC
Quick Summary
The Eaton 3MM residential meter stack enables multi-metering in outdoor electrical installations for multifamily and light commercial buildings. For engineers and procurement teams, coordinating tenant usage data and maintaining safe, accessible metering without bulky field modifications is a frequent challenge. UL Listed for outdoor service, the unit supports 125A service with an 800A bus and a five-jaw, four-socket arrangement. Its outdoor-rated footprint, together with compatibility to standard MCB configurations, helps accelerate installation, improve billing accuracy, and reduce lifecycle costs. Designed for residential and light commercial metering, it delivers reliable energy management and scalable performance.
Product Information
Extended Description
3MM412R2ACBC Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Al, Bus:800A, No bypass, Outdoor, Depends on selected MCB, Five-jaw, Sockets:4, Three-phase in, single-phase out, B-C, BR2_, BRH2_, BRHH2_, BRX2, Ring, Socket:125A, 120/208 Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM412R2ACBC
UPC
782116940646
Product Length/Depth
12.26 in
Product Height
48.5 in
Product Width
7.01 in
Product Weight
98 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
Catalog Notes
Fifth jaw included at 9oclock position
Type
Multiple metering
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 3MM412R2ACBC
Feature — Multiple metering capability enables simultaneous monitoring across circuits within a single enclosure. Business Impact — This consolidation lowers capital and installation costs while improving billing accuracy and data visibility for property managers and energy teams. Application — Ideal for multifamily and light-commercial properties that require outdoor mounting and scalable data access. Feature — The 3MM412R2ACBC supports a 125A service with an 800A bus and operates at 120/208 VAC. Impact — Accommodates typical load profiles without upgrading service equipment, speeding project timelines and reducing retrofit risk. Application — Suitable for new builds and renovations seeking reliable, code-compliant outdoor metering. Feature — Five-jaw design with four sockets, plus a fifth jaw included at 9 o'clock, enables flexible conductor arrangements. Impact — Improves termination reliability, reduces field rework, and supports diverse wiring configurations. Application — Outdoor meter stacks in facilities with varied wiring needs. Feature — UL Listed certification and outdoor-rated construction provide safety and compliance in harsh environments. Impact — Lowers regulatory risk and supports longer maintenance intervals. Application — External enclosures exposed to weather, sun, and temperature variations. Feature — Accurate footprint and weight details (12.26 in length, 48.5 in height, 7.01 in width, 98 lb) support site planning. Impact — Predictable installation planning and easier transport for contractors. Application — Outdoor installations at building entrances and exterior utility spaces.
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FAQs
The meter stack is designed for outdoor use with a weather-resistant enclosure, supports multiple metering configurations, and provides a clear path for tenant billing data. Its 125A service with an 800A bus and 120/208 VAC capability makes it compatible with common outdoor utility installs, reducing the need for additional indoor space.
Its multiple metering capability allows simultaneous monitoring of several circuits in one enclosure, improving billing accuracy and energy reporting. The 9 o'clock fifth jaw configuration enables flexible wiring, while the UL Listed outdoor rating ensures ongoing safety and compliance for shared-meter scenarios.
The unit is designed to work with selected MCB configurations. It requires proper selection of compatible MCBs to match the 125A service rating and five-jaw/socket arrangement. Verify mounting clearance and wiring pathways to ensure safe, code-compliant connections and straightforward maintenance.
The Eaton 3MM412R2ACBC is UL Listed, confirming compliance with safety standards for outdoor electrical equipment. This certification helps reduce project risk in outdoor metering applications and supports warranty and service terms aligned with standard utility and building codes.
Refer to Eaton’s residential and light commercial metering catalog and the Eaton specification sheet for model 3MM412R2ACBC. The catalog provides installation guidelines, wiring diagrams, and compatibility notes to support accurate field deployment and commissioning.