Eaton 3MM512R2RLBACBC Residential Meter Stack - UL Listed
Part Number: 3MM512R2RLBACBC
Quick Summary
The Eaton 3MM residential meter stack is a multi-metering distribution solution ideal for residential and light commercial panels. Field wiring and space constraints can complicate installations, but this stack consolidates metering into a compact, outdoor enclosure, reducing footprint and installation time. It carries UL Listed safety certification, supporting compliance across many markets, and Eaton designs often align with CE or IP standards where applicable. The solution accommodates 125 A service with an 800 A bus and five-jaw sockets, enabling efficient metering layouts while offering reliable, long-life operation. For contractors and utilities, this translates to faster commissioning, easier maintenance, and predictable performance in diverse environments.
Product Information
Extended Description
3MM512R2RLBACBC Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Al, Bus:800A, Horn bypass, Outdoor, Depends on selected MCB, Five-jaw, Sockets:5, 3-phase in, 1-phase out, A-C/B-C, BR2_, BRH2_, BRHH2_, BRX2, Ringless, Socket:125A, 120/208 Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM512R2RLBACBC
UPC
782116940691
Product Length/Depth
12.26 in
Product Height
57.5 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
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 3MM512R2RLBACBC
Multiple metering capability enables precise sub-metering and streamlined billing across tenants, reducing disputes and enabling accurate energy accounting. This translates to faster approvals for multi-tenant projects and improved cash flow visibility for building owners. The 125 A service with an 800 A bus supports scalable metering, allowing easy upgrades during project expansion without replacing the entire assembly, saving time and capital. Outdoor installation in a weather-resistant enclosure eliminates indoor space requirements and simplifies compliance in exterior wall or equipment yards. Five-jaw sockets, including a fifth jaw at the 9 o’clock position, minimize wiring errors and speed up field terminations, reducing commissioning risk. Compatibility with BR2_, BRH2_, BRHH2_, BRX2 breakers enables flexible integration with existing Eaton MCB configurations, lowering spare parts inventory and maintenance complexity. UL Listed certification underpins safety compliance, while the rugged construction supports long service life in demanding environments, reducing lifecycle costs. The design supports ringless operation and straightforward replacement of metering components, improving uptime and serviceability for utilities and building managers.
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FAQs
The 3MM512R2RLBACBC is designed for multiple metering with a 125 A service and 800 A bus, featuring five-jaw sockets and sockets rated at 125 A. It supports common Eaton MCB families such as BR2_, BRH2_, BRHH2_, and BRX2, enabling straightforward integration into existing panels without extensive rewiring. This compatibility minimizes field modifications and helps maintain project timelines.
Key specifications include a 125 A service rating, 800 A bus, 120/208 VAC, and 3-phase in with 1-phase out. It is designed for outdoor installation and uses five-jaw sockets to accommodate multiple metering points. The unit is UL Listed, ensuring compliance with established safety standards and reliable performance in harsh environments.
Yes. The 3MM stack provides multiple metering channels in a single outdoor enclosure, ideal for sub-metering across tenants. Its rugged outdoor design, 125 A service rating, and flexible bus arrangement support scalable meter layouts while maintaining a compact footprint, reducing installation time and enhancing billing accuracy for multi-tenant properties.
The unit carries UL Listed certification, reinforcing safety compliance for electrical equipment in outdoor or indoor installations. Eaton’s policy 25-000 provides a one-year warranty from installation or eighteen months from shipment, whichever comes first. This combination supports long-term reliability and predictable post-sale support for projects.
Install the stack in a weather-protected outdoor location with proper enclosure rating and secure mounting to minimize exposure to moisture and temperature swings. Use the included fifth jaw at 9 o’clock position and follow the recommended MCB compatibility (BR2_, BRH2_, BRHH2_, BRX2) to ensure secure terminations. Regular inspections and torque checks on connections help maintain performance over the product lifecycle.