Eaton 1MM320RRLC Residential Meter Stack - UL Listed
Part Number: 1MM320RRLC
Quick Summary
Eaton 1MM320RRLC Residential Meter Stack is a compact outdoor single‑phase metering solution designed for multi‑tenant and light commercial applications. It helps address weather exposure, wiring complexity, and utility acceptance—common challenges in exterior installations. UL Listed certification plus utility approvals in Florida, North Carolina, and Virginia provide safety compliance and local acceptance for field deployments. This meter stack delivers reliable, scalable metering with straightforward installation, reducing on-site time and management overhead. For engineers and property managers, it translates to predictable performance, improved energy visibility, and a clearer path to code compliance in outdoor environments. This solution is particularly beneficial for residential metering in outdoor enclosures requiring single‑phase in/out, with rugged reliability for long-term operation.
Product Information
Extended Description
1MM320RRLC 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, 3 Sockets, Copper, Ringless, 120/240 Vac
Product Name
Eaton residential meter stack
Catalog Number
1MM320RRLC
UPC
782114989913
Product Length/Depth
7.01 in
Product Height
52.35 in
Product Width
13.5 in
Product Weight
63 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
FL : Tallahassee City Electric NC : Dominion VA : Dominion
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 - 1MM320RRLC
Outdoor, rugged enclosure with UL Listed safety certification minimizes weather-related risk and maintenance costs while enabling code-compliant outdoor installations. The 200 A amperage rating and 800 A bus rating support scalable metering for typical residential feeders and small commercial properties, reducing the need for early service upgrades and streamlining utility interconnection. Single-phase in, single-phase out configuration simplifies wiring, accelerates installation, and lowers commissioning time for field crews. The three sockets offer straightforward, organized connections, improving reliability and ease of inspection. Utility approvals in FL, NC, and VA accelerate site acceptance and reduce permutation delays during permit processes. With dimensions and weight chosen for practical rooftop or wall-mount installations, this stack enables efficient space planning and predictable maintenance cycles. Energy visibility is enhanced by a purpose-built metering solution that aligns with Eaton’s broader metering ecosystem, improving procurement and spare-part planning.
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FAQs
Installation requires outdoor mounting space for a single‑phase metering cabinet with access for three sockets, 120/240 V equipment, and a main breaker that determines the interrupt rating. The unit is UL Listed and designed for outdoor use, so ensure weatherproof clearances, proper grounding, and compliance with local utility interconnection requirements. Plan for service-entrance cabinet proximity and adequate ventilation to maintain longevity.
Yes, but the interrupt rating depends on the main circuit breaker selected. The meter stack is intended for single‑phase in/out configurations and works with Eaton metering products and typical residential service equipment. Confirm compatibility with local utility requirements and coordinate with the breaker rating to ensure safe, code-compliant interconnection and optimal protection coordination.
This meter stack is ideal for multi‑tenant residential buildings and light commercial outdoor installations that require reliable, outdoor metering. Its outdoor enclosure and 120/240 V single‑phase design support feeders for apartment complexes, townhomes, and small commercial properties, offering scalable metering with minimal space impact and straightforward maintenance.
The product is UL Listed, ensuring fundamental safety compliance. It also has utility approvals for Florida (Tallahassee City Electric), North Carolina (Dominion), and Virginia (Dominion), which facilitates local acceptance and faster interconnection in those jurisdictions. Always verify current utility requirements for your project, as approvals can vary by utility and project scope.
Maintenance is minimized by a rugged outdoor enclosure and straightforward wiring; routine inspections focus on connections and enclosure integrity. The UL Listed certification and utility approvals help reduce compliance risk and potential delays, contributing to faster project completion and lower risk of costly retrofit work. Overall ROI stems from reduced field visits, predictable energy visibility, and scalable metering for growing properties.