Eaton 1MM512RRLBCPS Residential Meter Stack - UL Listed
Part Number: 1MM512RRLBCPS
Quick Summary
The Eaton residential meter stack enables compact, multi-meter monitoring and distribution for multi-tenant or mixed-load buildings. It addresses cluttered enclosures and access challenges that complicate service upgrades and metering configurations. This unit carries UL Listed recognition, a NEMA 3R enclosure, and CPSB regulatory approvals, reinforcing safety and code compliance in outdoor or semi-exposed settings. Built to accommodate single-phase in and out with a four-jaw main, it supports 125 A service and an 800 A bus, while offering horn bypass and ringless operation for easy maintenance. With aluminum bus material and proven Eaton compatibility, it delivers scalable metering while reducing footprint and installation time, translating into faster projects and lower total cost of ownership.
Product Information
Extended Description
1MM512RRLBCPS Eaton: Eaton resi meter stack, SS meter guides, Multiple metering, 125A, Al, Bus: 800A, Horn bypass, NEMA 3R, Depends on selected main circuit breaker, Four-jaw, 5, Single-phase in/single-phase out, BR2_, BRH2_, BRHH2_, Ringless, 120/240V
Product Name
Eaton residential meter stack
Catalog Number
1MM512RRLBCPS
UPC
786685380407
Product Length/Depth
12.26 in
Product Height
57.5 in
Product Width
7.01 in
Product Weight
68 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
Special features
SS meter guides
Type
Multiple metering
Amperage Rating
200A
Bus material
Aluminum
Bus Rating
800 A
Bypass
Horn
Number of jaws
Four-jaw
Number of sockets
5
Phase
Single-phase in, single-phase out
Security
Ringless
Voltage rating
120/240 V
Utility approvals
TX : City Public Service of San Antonio (CPSB)
Enclosure
NEMA 3R
Interrupt rating
Depends on selected main circuit breaker
Secondary circuit breaker
BR2_, BRH2_, BRHH2_
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 1MM512RRLBCPS
Feature → Business Impact → Application: Multi-meter capability enables concurrent monitoring of up to five sockets within a single enclosure, reducing the need for separate panels and saving space in multi-tenant or mixed-use facilities. This translates to faster commissioning and lower installation costs, especially in retrofit projects. Feature → Application: Horn bypass and four-jaw main design improves reliability and minimizes downtime during service restoration, supporting rapid fault isolation and safer maintenance in commercial or residential complexes. Feature → Application: NEMA 3R outdoor-rated enclosure with UL Listed certification provides weather resistance and regulatory confidence for exterior installations, aligning with CPSB requirements in Texas. Feature → Application: Aluminum bus with an 800 A bus rating and 125 A service supports scalable metering for growing load profiles, enabling easy future expansion without rewiring. Feature → Application: Compatibility with BR series secondary breakers (BR2_, BRH2_, BRHH2_) simplifies integration into existing Eaton systems, reducing procurement complexity and improving field serviceability. Feature → Application: Ringless, single-phase in/out configuration supports straightforward wiring and safer maintenance practices, accelerating project timelines and reducing lifecycle costs for multi-tenant buildings and light commercial sites.
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FAQs
The 1MM512RRLBCPS is designed for single-phase in/out use with compatible BR2, BRH2, and BRHH2 secondary breakers. It mounts in a NEMA 3R enclosure and uses a four-jaw main. Ensure the main breaker rating matches system requirements, align bus connections correctly, and follow Eaton installation guidelines. Verify UL Listed status and CPSB compliance for your project location.
Key specs include an amperage rating of 200 A, a 125 A service, and an 800 A bus rating. It uses an aluminum bus, features a four-jaw main, horn bypass, and ringless design. It operates at 120/240 V with single-phase in and out, includes 5 sockets, and is enclosed in a NEMA 3R housing with UL Listed certification.
Yes. The 1MM512RRLBCPS is UL Listed and carries CPSB utility approvals for Texas, ensuring compliance with local utility requirements. Its NEMA 3R enclosure is suited for exterior installations, and the unit’s design supports safe, code-compliant multi-meter configurations in Texas markets.
The NEMA 3R enclosure offers weather-resistant protection suitable for outdoor or semi-exposed environments, reducing the need for additional weatherproof enclosures. It pairs with an aluminum bus and horn bypass features to streamline installation, improve serviceability, and withstand outdoor conditions while meeting UL Listed standards for reliability and safety.
The meter stack reduces footprint and simplifies metering by hosting multiple meters in one enclosure, speeding up installation and future expansions. Fewer components and straightforward maintenance lower labor costs, while ringless operation and horn bypass improve uptime during service. Overall, these factors translate into faster projects, lower long-term operating costs, and improved regulatory compliance.