Eaton 3MM312RC2AC Residential Meter Stack - UL Listed
Part Number: 3MM312RC2AC
Quick Summary
Eaton 3MM residential meter stack is designed for efficient multi-meter management in outdoor electrical panels. When space and wiring complexity threaten project timelines, this stack simplifies field integration with a configurable five-jaw design and compatibility with MCB selections. Key certifications include UL Listed safety compliance, ensuring dependable operation in harsh outdoor environments. The solution also supports 125A service with an 800A bus and copper construction, delivering robust performance for residential and light commercial applications. By enabling flexible metering configurations, it helps simplify installation, improve reliability, and reduce long-term maintenance costs for utilities and builders.
Product Information
Extended Description
3MM312RC2AC Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Copper, Bus:800A, No bypass, Outdoor, Depends on selected MCB, Five-jaw, Sockets:3, Three-phase in, single-phase out, A-C, BR2_, BRH2_, BRHH2_, BRX2, Ring, Socket:125A, 120/208 Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM312RC2AC
UPC
782114632031
Product Length/Depth
12.26 in
Product Height
41.8 in
Product Width
7.01 in
Product Weight
57 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. To change in field from ring to ringless-order 1MMRC200.
Type
Multiple metering
Feature → Business Impact → Application: Five-jaw design provides flexible ring or ringless configurations, reducing field modification time and enabling rapid deployment in outdoor meter enclosures used for multifamily or commercial-residential properties. This translates to lower labor costs and faster commissioning in multi-tenant buildings. Feature → Business Impact → Application: 125A service with an 800A copper bus supports current demand growth and future upgrades without reworking the enclosure, minimizing upgrade cycles for new developments and retrofits in residential communities and small commercial sites. Feature → Business Impact → Application: Three-phase in, single-phase out capability simplifies mixed-load feeders, reducing miswiring risk and improving power quality across feeders in outdoor meter stacks for mixed-use developments and campuses. Feature → Business Impact → Application: UL Listed certification provides safety assurance and inspector-friendly compliance, streamlining approvals for building permits and utility integrations in both new builds and renovations. Feature → Business Impact → Application: Field-configurable with selectable MCBs and documented field-change option (order 1MMRC200 for ring-to-ringless), reducing inventory complexity and improving procurement efficiency in contractor-led installations. Feature → Business Impact → Application: Outdoor-rated construction with a copper bus and sturdy 41.8 in height and 12.26 in depth supports durable, long-term service in harsh weather conditions, lowering maintenance costs and downtime for property managers and utilities.
Get a Quick Quote for a Eaton 3MM312RC2AC
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton 3MM312RC2AC?
Enquire Now
FAQs
This meter stack is designed for outdoor installations and requires proper mounting in an outdoor enclosure. Consider the overall dimensions (41.8 in height, 7.01 in width, 12.26 in depth) and weight (57 lb) for rack space and labor planning. It supports 125A service with an 800A bus and offers five-jaw sockets for flexible ring or ringless configurations, including the option to convert via the 1MMRC200 catalog change. Ensure UL Listed compliance and correct MCB selection for the desired configuration.
The Eaton 3MM312RC2AC is built for multiple metering with three socket positions and a five-jaw design, allowing ring or ringless configurations. This enables simultaneous metering of different circuits or tenants without extra enclosures. Compatibility with various MCBs and the option to reconfigure in the field helps simplify installation and reduces the need for additional cabinets, saving space and capital expenditure on multi-tenant properties.
Yes, the unit is UL Listed, indicating compliance with recognized safety standards for electrical equipment. This certification supports safe outdoor operation and simplifies inspection and permitting processes for residential, mixed-use, and light commercial installations. Always follow installation instructions and Eaton’s warranty terms to maintain compliance and service reliability.
Field configurability, including the option to switch from ring to ringless (order 1MMRC200) and compatibility with various MCBs, reduces procurement complexity and inventory needs. It also minimizes downtime during commissioning and future reconfigurations, lowering long-term maintenance and upgrade costs. The UL Listed build and copper bus design contribute to durable performance, extending service life in outdoor environments.
This meter stack excels in residential and light commercial outdoor metering scenarios requiring multiple meters, such as multi-tenant housing, small campuses, and mixed-use developments. With 125A service, 800A bus, 120/208 VAC capability, and three-phase in, single-phase out capability, it supports diverse feeders and load types while maintaining a compact footprint and robust field serviceability.