Eaton 3MM412R2ACBCC Residential Meter Stack - UL Listed
Part Number: 3MM412R2ACBCC
Quick Summary
The Eaton 3MM residential meter stack provides multi-metering power distribution for outdoor installations. It is designed for multi-tenant and commercial facilities, delivering compact yet scalable metering to simplify wiring and space planning. This unit carries UL Listed safety certification, underscoring compliance with electrical standards and reducing risk during commissioning and maintenance. By consolidating metering points in a single outdoor enclosure, owners and engineers can streamline load management, tenant billing, and future expansion. The combination of multi-metering capability with a rugged outdoor form factor supports efficient asset utilization while enabling procurement teams to standardize with a proven Eaton solution. Secondary benefits include improved service reliability and predictable lifecycle costs for building portfolios.
Product Information
Extended Description
3MM412R2ACBCC Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Cu, Bus:800A, No bypass, Outdoor, Depends on selected MCB, Five-jaw, Sockets:4, Three-phase in, single-phase out, A-C/B-C, BR2_, BRH2_, BRHH2_, BRX2, Ring, Socket:125A, 120/208 Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM412R2ACBCC
UPC
786685513355
Product Length/Depth
12.26 in
Product Height
48.5 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
Catalog Notes
Fifth jaw included at 9oclock position
Type
Multiple metering
Eaton Specification Sheet - 3MM412R2ACBCC
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The product supports multiple metering with three-phase input and single-phase output, enabling precise load monitoring across varying tenant loads while reducing panel count in challenging outdoor installations. This translates to lower installation time and reduced space requirements in the electrical room, ideal for mid-size commercial complexes and multi-tenant properties. Feature → Business Impact → Application: 125A main service with a copper bus rated to 800A offers scalable capacity to accommodate growth without rework, improving project flexibility and long-term ROI for property developers and electrical contractors. Feature → Business Impact → Application: Outdoor-rated construction and a five-jaw design (including a fifth jaw at 9 o'clock) provide robust bus connections and secure terminations, enhancing reliability in harsh environments and simplifying field wiring for technicians. Feature → Business Impact → Application: Four sockets and configurable metering (A-C/B-C) enable diverse metering schemes, supporting accurate tenant billing and energy management across residential and mixed-use buildings. Feature → Business Impact → Application: UL Listed certification assures safety compliance, facilitating procurement approval, reducing risk during audits, and supporting installation in regulated environments. Feature → Business Impact → Application: The catalog notes and compatibility with selected MCBs improve install-time decision-making and interoperability with Eaton or compatible protective devices, cutting design cycles for engineering teams and speeding up project delivery.
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FAQs
The 3MM412R2ACBCC is designed for outdoor mounting with a five-jaw connection system and four sockets, enabling secure terminations in a weather-resistant enclosure. It supports three-phase in and single-phase out configurations and includes a fifth jaw at 9 o'clock to simplify wiring and reduce field termination time. Ensure enclosure rating matches outdoor service conditions and that selected MCBs are compatible.
The unit uses a 125A main service with a copper bus rated up to 800A, allowing growth and higher concurrent loading without reconfiguring the meter stack. This arrangement supports multiple metering points for tenants, enabling accurate load monitoring and easier demand forecasting while maintaining safe, code-compliant wiring practices.
Yes. The Eaton 3MM412R2ACBCC is specifically designed for multi-metering with four sockets and a flexible A-C/B-C configuration. It accommodates multi-tenant load profiles, streamlines tenant billing, and reduces space requirements by combining metering into a single outdoor enclosure suitable for residential and mixed-use facilities.
The product is UL Listed, validating compliance with recognized safety standards for electrical equipment. This certification supports procurement approval, simplifies installation in regulated environments, and enhances confidence in field performance and long-term reliability.
The Eaton meter stack is governed by Eaton’s policy. It includes a one-year warranty from installation or eighteen months from shipment, whichever occurs first. This warranty, combined with robust outdoor construction and modular metering, reduces lifecycle risk, supports predictable maintenance planning, and improves total cost of ownership for building portfolios.