Eaton 1MM520RRL Residential Meter Stack - UL Listed
Part Number: 1MM520RRL
Quick Summary
Eaton residential meter stack is an outdoor metering solution for single-phase residential power distribution. Installers often struggle with weatherproof enclosures that still allow easy service and metering access, especially in outdoor locations. This unit carries UL Listed certification and is aligned with utility approvals across Dominion, Entergy, Georgia Power, and SCE&G markets. By combining rugged outdoor design with standard metering capabilities, it supports efficient residential metering while simplifying procurement and installation for contractors and utilities alike.
Product Information
Extended Description
1MM520RRL Eaton: Eaton residential meter stack, Amperage rating: 200A, Bus rating: 800A, Outdoor, Interrupt rating depends on selected main circuit breaker, Single-phase in/single-phase out, 5 Sockets, Aluminum, Ringless, 120/240 Vac
Product Name
Eaton residential meter stack
Catalog Number
1MM520RRL
UPC
782116883851
Product Length/Depth
6.87 in
Product Height
74.96 in
Product Width
13.5 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
Multiple metering
Utility approvals
NC : Dominion VA : Dominion AR : Entergy LA : Entergy MS : Entergy TX : Entergy GA : Georgia Power SC : South Carolina Electric and Gas (SCE&G)
Interrupt rating
Depends on selected main circuit breaker
Enclosure
Outdoor
Bus Rating
800 A
Phase
Single-phase in, single-phase out
Voltage rating
120/240 V
Amperage Rating
200A
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 1MM520RRL
Outdoor enclosure design provides reliable weather resistance for long-term outdoor use, reducing corrosion risk and maintenance costs while protecting critical metering equipment in harsh environments. This translates to fewer field failures and lower total cost of ownership for property managers and utilities seeking durable power management solutions. The 200 A amperage rating paired with an 800 A bus rating enables flexible multi-meter configurations, supporting future load growth without replacing the enclosure or meters, which drives downstream savings during upgrades or tenant changes. Multiple metering capability simplifies installation in multi-tenant facilities, reducing hardware counts and on-site labor while improving metering accuracy and reliability. The单-phase in/out design with 120/240 V compatibility ensures broad applicability for standard residential feeders and service entrances, accelerating project timelines and improving vendor support. Utilities value UL Listed certification, robust warranty coverage, and established utility approvals, which help meet regulatory requirements and reduce project risk while enabling faster permitting and inspection processes. Overall, the product’s compatibility and installation advantages translate into reduced commissioning time and lower lifecycle costs for metering projects in both new builds and retrofits.
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FAQs
For outdoor installation, ensure the unit is mounted in a suitable weatherproof location with adequate clearance for service access. The meter stack features an outdoor aluminum enclosure, 74.96 in height, 13.5 in width, and 6.87 in depth, with a total weight of 78 lb. Plan for 120/240 V single-phase in/out connections and verify compatibility with the main circuit breaker to determine the final interrupt rating. The enclosure is designed to resist environmental exposure while providing easy socket access for metering and maintenance. Adhere to local utility requirements and Eaton’s warranty policy during installation to maximize reliability and compliance.
The stack supports a 200 A amperage rating with an 800 A bus rating, enabling multiple meters or higher-load scenarios within a single enclosure. This configuration allows contractors to consolidate metering points without upgrading the housing. The interrupt rating depends on the selected main circuit breaker, so planners can choose the appropriate breaker to meet site demands while maintaining safety and code compliance.
Yes. The unit is UL Listed and configured for utility approvals across multiple markets, including Dominion regions, Entergy territories, and Georgia Power, along with SCE&G. This makes it a viable choice for residential and light-commercial metering projects in areas governed by these utilities, aiding in permit and inspection processes and reducing regional deployment risk.
The 1MM520RRL carries UL Listed certification, ensuring compliance with safety and performance standards for metering equipment. Warranty coverage follows Eaton’s policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This provides a clear risk-management window and helps drive project confidence during procurement and deployment.
The outdoor-rated aluminum enclosure, rugged construction, and 78 lb weight enable straightforward field handling and durable performance in harsh environments, reducing maintenance visits. The 120/240 V single-phase design aligns with common residential feeders, speeding electrical connections and commissioning. Utility approvals and UL Listing further reduce permitting hurdles, resulting in faster project completion and lower lifecycle costs for metering deployments.