Eaton 3MM220RRLBC Residential Meter Stack - UL Listed
Part Number: 3MM220RRLBC
Quick Summary
Eaton 3MM220RRLBC residential meter stack enables multiple metering for outdoor service entrances. Building owners and maintenance teams often struggle with wiring complexity, space constraints, and safety when mounting meters outdoors. The UL Listed safety certification supports regulatory compliance, while a rugged outdoor enclosure design withstands weather and vandal exposure. This solution also integrates with standard Eaton MCBs and metering products, delivering predictable installation performance and service life. For engineers and procurement leaders, it translates into faster approvals, easier field commissioning, and lower total installed cost while supporting scalable, multi-tenant energy management.
Product Information
Extended Description
3MM220RRLBC Eaton: Eaton 3MM residential meter stack, Multiple metering, 200A, Cu, Bus:800A, Horn by, Outdoor, Depends on selected MCB, 5-jaw, Sockets:2, 3-ph in, 1-ph out, B-C, CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM, CVH2_XMM, Ringless, Socket:200A, 120/208Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM220RRLBC
UPC
782114990704
Product Length/Depth
13.5 in
Product Height
52.35 in
Product Width
7.01 in
Product Weight
69 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 - 3MM220RRLBC
Feature: Multiple metering capability for 200A service with an 800A bus. Business Impact: Enables precise sub-metering for tenants or circuits, reducing external metering points and simplifying bill consolidation. Application: Outdoor building entrances and multi-tenant facilities. Feature: Outdoor-rated enclosure. Business Impact: Withstands weather exposure and minimizes outdoor safety concerns, improving reliability and reducing maintenance visits. Application: Exterior meter stacks on commercial and residential buildings. Feature: 3-ph in, 1-ph out with ringless sockets and 2 sockets at 200A. Business Impact: Simplifies electrical connections, speeds installation, and lowers wiring errors. Application: Flexible distribution in outdoor meters and multi-meter configurations. Feature: Compatibility with Eaton MCCBs/MCBs (CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM, CVH2_XMM). Business Impact: Inventory optimization and design flexibility for project-specific protection schemes. Application: Customized sub-feed arrangements in mixed-load installations. Feature: Documentation and warranty. Business Impact: Access to Eaton catalogs and spec sheets accelerates design reviews, while a one-year warranty reduces project risk. Application: Procurement workflows and service continuity planning.
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FAQs
The 3MM220RRLBC is designed for outdoor installations with 3-phase in and single-phase out connections. Begin by confirming the 200A service and 800A bus rating, mount the enclosure outdoors per local code, and wire the 3PH inputs and 1PH output through the ringless, 5-jaw sockets. Use the appropriate MCBs compatible with CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM, or CVH2_XMM families to ensure proper protection and coordination.
Key specs include 200A service, copper (Cu) conductors, a bus rating of 800A, outdoor-rated enclosure, 120/208Vac operation, and 2 sockets with 3-ph in and 1-ph out. The meter stack is UL Listed, supports ringless socket configurations, and is compatible with specified Eaton MCB families for tailored protection.
Yes. The multiple metering capability at 200A service with a robust outdoor enclosure makes it ideal for multi-tenant residential complexes and light commercial buildings, enabling centralized metering, simplified billing, and scalable expansion as occupancy or load increases.
The 3MM220RRLBC carries UL Listed certification, which supports safety and regulatory compliance for electrical installations. This reduces project risk during reviews and procurement and helps meet compliance requirements for outdoor metering assemblies.
The stack measures 13.5 inches in depth, 52.35 inches in height, and 7.01 inches in width, with an approximate weight of 69 pounds. This footprint should be accounted for in exterior wall or pedestal mounting plans and allows for straightforward integration with existing outdoor electrical layouts.