Eaton 3MM612RRL Residential Meter Stack - UL Listed
Part Number: 3MM612RRL
Quick Summary
Eaton residential meter stack provides compact, three-phase metering for group metering in multi-tenant and campus applications. Facilities teams often wrestle with space limitations, wiring complexity, and coordinating utility approvals for building-wide metering. This unit carries UL Listed safety certification and aligns with active utility approvals across Dominion, Entergy, and Georgia Power networks, supporting compliant deployments. Its indoor/outdoor enclosure, 125A device rating with an 800A bus, and five-jaw design make installation faster while optimizing space and lifecycle costs. In addition, the modular architecture allows future expansion and streamlined maintenance.
Product Information
Extended Description
3MM612RRL Eaton: Three-Phase Residential Meter Stack Module, Group Metering, 125A, 800 Ampere Bus, Indoor/outdoor, Five-jaws, 6 sockets, Three-phase in, single-phase out, Ringless, 120/208V
Product Name
Eaton residential meter stack
Catalog Number
3MM612RRL
UPC
786849052171
Product Length/Depth
64.5 in
Product Height
8 in
Product Width
14.5 in
Product Weight
78 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
Group Metering
Utility approvals
NC : Dominion VA : Dominion AR : Entergy LA : Entergy MS : Entergy TX : Entergy GA : Georgia Power FL : Tallahassee City Electric
Interrupt rating
Depends on selected main circuit breaker
Enclosure
Indoor/outdoor
Secondary circuit breaker
BR2_, BRH2_, BRHH2_
Bus Rating
800 A
Phase
Three-phase in, single-phase out
Voltage rating
120/208V
Amperage Rating
125A
Bus material
Aluminum
Bypass
None
Number of jaws
Five-jaw
Number of sockets
6
Phase balance
A-B
Security
Ringless
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 3MM612RRL
Feature: Three-phase in, single-phase out design enables consolidated metering for group metering scenarios; Business Impact: reduces wiring complexity and helps maintain phase balance; Application: ideal for multi-tenant buildings and campuses. Feature: 125A operating amperage with an 800A bus rating; Business Impact: supports higher headroom for grouped service feeders; Application: scalable metering for growing facilities. Feature: Five-jaw, six sockets configuration and ringless security; Business Impact: flexible wiring, safer, easier service entry; Application: accommodates multi-circuit connections while maintaining neat installation. Feature: Aluminum bus material; Business Impact: reduces weight, improves thermal performance, corrosion resistance; Application: easier installation and longer life in indoor/outdoor environments. Feature: Indoor/outdoor enclosure versatility; Business Impact: enables flexible mounting in diverse environments; Application: suitable for residential and light commercial meter cabinets. Feature: Compatibility with secondary breakers BR2_, BRH2_, BRHH2_; Business Impact: simplifies upgrades within Eaton’s protection family; Application: retrofit or new construction. Feature: UL Listed certification and utility approvals; Business Impact: supports regulatory compliance and utility acceptance; Application: reliable interconnection in regulated markets.
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FAQs
The 3MM612RRL is designed for compatibility with Eaton secondary breakers BR2_, BRH2_, BRHH2_. It supports three-phase in, single-phase out metering and a flexible five-jaw, six-socket configuration, enabling straightforward integration into Eaton protection schemes while maintaining a clean, compliant install.
Key specs incluyen 125A amperage rating, 800A bus rating, 120/208V voltage, aluminum bus material, and five-jaw with six sockets. The unit is rated for indoor/outdoor use and provides three-phase in, single-phase out metering suitable for group metering in multi-tenant applications.
This meter stack excels in multi-tenant residential buildings, campuses, and light commercial facilities requiring group metering. Its indoor/outdoor enclosure and scalable bus make it ideal for installations that need space efficiency, reliable utility approvals, and future expansion without major rewiring.
The 3MM612RRL carries UL Listed certification and supports utility approvals across several jurisdictions, including Dominion, Entergy, and Georgia Power. These credentials help streamline interconnection processes and ensure adherence to safety and regulatory requirements for utility-backed installations.
Its compact footprint, modular design, and compatibility with Eaton breakers reduce wiring complexity and labor time during installation. The UL Listed certification, robust enclosure, and scalable bus rating also contribute to lower maintenance costs and a longer lifecycle, delivering measurable ROI for multi-unit or campus projects.