Eaton 3MM212R12RLBCPS Residential Meter Stack - UL Listed
Part Number: 3MM212R12RLBCPS
Quick Summary
The Eaton 3MM212R12RLBCPS residential meter stack is a compact, multi-metering solution designed for outdoor electrical panels and multi-tenant facilities. This approach helps engineers address space constraints and wiring complexity that commonly arise when expanding metering in existing enclosures. Key certifications bolster confidence in safety and compliance, notably UL Listed certification and CPS approval, with practical implications for field reliability and regulatory alignment. By consolidating meters in a single exterior-ready enclosure, this stack delivers tangible business value through faster installations, streamlined maintenance, and improved energy management for building owners and operators. It also aligns with practical keywords such as residential metering and outdoor metering for informed procurement discussions.
Product Information
Extended Description
3MM212R12RLBCPS Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Al, Bus:1200A, Horn bypass, Outdoor, Depends on selected MCB, 5-jaw, Sockets:2, Three-phase in, single-phase out, A-B, BR2_, BRH2_, BRHH2_, BRX2, Ringless, Socket:125A, 120/208Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM212R12RLBCPS
UPC
786685494654
Product Length/Depth
12.26 in
Product Height
41.8 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, CPS approved
Type
Multiple metering
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 3MM212R12RLBCPS
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Multiple metering with 125A service and bus:1200A enables centralized billing and load profiling; Business Impact: reduces metering points, simplifies revenue management, and supports scalable capacity planning; Application: ideal for multi-tenant residential or light commercial installations where accurate sub-metering is required. The Eaton design accelerates commissioning and minimizes field modifications. Feature: Outdoor aluminum enclosure with 98 lb weight provides durable, weather-resistant housing; Business Impact: lowers maintenance costs and extends service life in harsh environments; Application: outdoor installations, rooftops, and exterior panels where robust protection is essential. Feature: 3-phase in, single-phase out with 120/208Vac operation offers flexible integration; Business Impact: supports mixed-phase systems and reduces inventory needs for diverse projects; Application: building distribution where both three-phase inputs and single-phase outlets are used. Feature: Fifth jaw included at 9 o'clock (CPS approved) and 2 sockets with a 5-jaw configuration improves alignment and reduces installation time; Business Impact: speeds setup and minimizes mis-wiring risk; Application: quick-turn installs in new builds and retrofit projects. Feature: Ringless sockets and CPS-approved components enhance safety and serviceability; Business Impact: safer maintenance and easier retrofits; Application: long-term asset management in commercial and residential feeders. Feature: Comprehensive warranty and Eaton support policy provide lifecycle assurance; Business Impact: reduces total cost of ownership and supports procurement planning; Application: procurement for developers, property managers, and electrical contractors.
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FAQs
Yes. The 3MM212R12RLBCPS is designed for outdoor use with a rugged aluminum enclosure and ringless sockets, supporting 120/208V systems and a 125A service. It features a 1200A bus arrangement and a fifth jaw at 9 o'clock for quick, safe alignment. This makes outdoor installations in multi-tenant or residential settings straightforward and compliant with field requirements.
Key specifications include a 125A service rating, 120/208Vac operation, bus rating of 1200A, and two sockets with a 5-jaw configuration. It supports three-phase in and single-phase out, enabling flexible metering for mixed-use facilities. The unit is UL Listed and CPS approved, ensuring performance and regulatory compliance in standard distribution applications.
Yes. The Eaton 3MM212R12RLBCPS is UL Listed and CPS approved, with catalog notes reinforcing its field-readiness. These certifications confirm safety, reliability, and compliance for outdoor residential and light commercial metering installations, reducing risk during commissioning and ongoing operation.
The meter stack is ideal for outdoor, multi-tenant, or residential-commercial mixed-use environments requiring multiple metering channels. With three-phase in and single-phase out capability, 120/208V operation, and a 125A service, it supports scalable energy management, simplified billing, and rapid deployment in new builds or retrofit projects.
The product carries Eaton’s standard warranty policy, typically one year from installation or eighteen months from shipment, whichever occurs first. Eaton’s support channels provide assistance with installation considerations, field compatibility, and access to specification sheets and CPS-approved documentation to maximize uptime and lifecycle value.