Eaton 3MM Residential Meter Stack - UL Listed
Part Number: 3MM412RRLBACBC
Quick Summary
Eaton 3MM residential meter stack provides multi-metering capability for outdoor distribution in multi-tenant and residential developments. Engineers and procurement teams often wrestle with space constraints and wiring complexity in centralized panels, which this stack helps simplify. UL Listed safety certification supports compliance with electrical standards for outdoor installations and metering accuracy. The design accommodates 125A service with an 800A bus, 120/208 VAC, and four sockets, offering reliable submetering with scalable deployment and reduced field labor. In practice, this translates to faster installations, lower retrofit costs, and improved energy auditing for tenants and building operators.
Product Information
Extended Description
3MM412RRLBACBC Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Al, Bus:800A, Horn bypass, Outdoor, Depends on selected MCB, 5-jaw, Sockets:4, 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
3MM412RRLBACBC
UPC
782116890774
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
Type
Multiple metering
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 3MM412RRLBACBC
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Multi-metering with four sockets enables precise submetering across units. Business Impact: Reduces the need for multiple separate enclosures, cutting material and labor costs while improving load visibility. Application: Ideal for multi-tenant residential complexes and mixed-use buildings that require accurate tenant billing and energy management. Feature: Outdoor-rated construction with 125A service and 800A bus delivers weather-resistant reliability. Business Impact: Minimizes maintenance visits and extends service life in external installations, reducing downtime. Application: Exterior meter stacks for building perimeters, parking structures, and outdoor distribution zones. Feature: 120/208 VAC capability with 3-phase in, 1-phase out support. Business Impact: Simplifies wiring topology, lowers panel congestion, and accelerates commissioning. Application: Utilities, small commercial loads, and retrofit projects. Feature: UL Listed certification provides safety compliance. Business Impact: Enhances regulatory confidence, aids utility approvals, and supports safer metering deployments. Application: Any outdoor metering scenario requiring standards-based certification. Feature: Compatibility with MCB selections and 5-jaw sockets ensures flexible configuration. Business Impact: Reduces design variance and accelerates procurement by supporting common modular components. Application: New builds and retrofits where fast, reliable metering integration matters.
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FAQs
The 3MM412RRLBACBC is designed for outdoor mounting with four sockets and a 125A service, supported by an 800A bus. It fits standard submetering setups and is compatible with common MCB configurations. Expect a footprint around 48.5 in height by 7.01 in width and 12.26 in depth, with a weight near 98 lb for straightforward handling and secure installation.
Key specs include 125A service, 800A bus rating, 120/208 VAC, and a 3-phase in with 1-phase out configuration. It supports four sockets and aluminum conductors (Al), suitable for outdoor metering. This combination enables reliable multi-tenant submetering while maintaining safe, code-compliant operation.
Best suited for outdoor, multi-tenant or light commercial metering, the 3MM412RRLBACBC consolidates meters in a single enclosure. It reduces wiring complexity in exterior panels, streamlines tenant billing, and supports energy management initiatives in residential towers, townhomes, and mixed-use developments.
The product is UL Listed, a cornerstone certification for safety and compliance in electrical distribution equipment. This listing supports acceptance by utilities and compliance with safety standards for outdoor metering installations.
Warranty follows Eaton policy 25-000, providing one year from the date of installation or eighteen months from shipment, whichever occurs first. This coverage helps mitigate risk during early operation and supports maintenance planning for building operators.