Eaton 35MM220R12 Meter Stack - UL Listed, 120/240 V
Part Number: 35MM220R12
Quick Summary
The Eaton 35MM220R12 meter stack provides plug-in metering for commercial power distribution, enabling centralized monitoring and control. Installers often face bulky, mismatched meter assemblies that slow commissioning and increase wiring error risk. UL Listed safety certification underpins compliance, while a 1200 A bus and 120/240 V capability support scalable, code‑compliant installations across facilities. Designed with a 3R enclosure, three-phase in and single-phase out topology, and a 225 A socket rating, it reduces design decisions and field variability. In practice, this OEM-backed solution speeds site readiness, improves BOM clarity, and enhances energy analytics for ongoing energy management and reporting. For engineers and procurement teams, the integrated approach with Eaton meter products simplifies maintenance and long-term total cost of ownership.
Product Information
Extended Description
35MM220R12 Eaton: Eaton 35MM commercial meter stack, Plugin socket, Al, 200A, Bus:1200A, Lever, 3R, Depends on selected MCB, 5-jaw, Sockets:2, 3-phase in, 1-phase out, A-B, EHD2_, CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM,CVH2_XMM, Ringless, Socket:225A, 120/240Vac
Product Name
Eaton 35MM commercial meter stack
Catalog Number
35MM220R12
UPC
786849052966
Product Length/Depth
18.25 in
Product Height
11 in
Product Width
8.75 in
Product Weight
100 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
Plug-in socket
Utility approvals
IN : Indiana Michigan Power (IMP) (AEP East) MI : Indiana Michigan Power (IMP) (AEP East) OH : AEP Ohio (AEP East) TN : Appalachian Power (AEP East) VA : Appalachian Power (AEP East) WV : Appalachian Power (AEP East) AL : Alabama Power IL : Ameren MO : Ameren IA : Alliant (IP&L and WP&L) WI : Alliant (IP&L and WP&L) DC : Atlantic City Electric / Delmarva (Connectiv) DE : Atlantic City Electric / Delmarva (Connectiv) MD : Atlantic City Electric / Delmarva (Connectiv) NJ : Atlantic City Electric / Delmarva (Connectiv) MD : Baltimore Gas and Electric ME : Central Maine Power IL : Commonwealth Edison (ComEd) / CECHA OH : Dayton Power and Light (DP&L) ME : Emera Maine (Bangor Hydro Electric Co./ Maine Public Service Company) MD : First Energy (Potomac Edison) VA : First Energy (Potomac Edison) WV : First Energy (Mon Power) NJ : First Energy (Jersey Central Power and Light) OH : First Energy (Ohio Edison, Toledo Edison, The Illuminating Company) PA : First Energy (Allegheny Power, MET ED, Penelec, West Penn Power) GA : Georgia Power FL : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) IN : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) KY : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) NC : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) OH : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) SC : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) TN : Middle Tennessee EMC NY : Orange & Rockland Utilities NY : PSE&G Long Island NM : Public Service Company of New Mexico (PNM) FL : Tallahassee City Electric CT : United Illuminating (UI) WI : WE Energies / Wisconsin Public Service (WPS) PA : Pennsylvania Power & Light (PPL) NY : Rochester Gas & Electric (RG&E) CT : Eversource (Connecticut Light and Power Co./Nstar/PSC New Hampshire/Western Mass Electric) MA : Eversource (Connecticut Light and Power Co./Nstar/PSC New Hampshire/Western Mass Electric) NH : Eversource (Connecticut Light and Power Co./Nstar/PSC New Hampshire/Western Mass Electric) CO : Xcel Energy MI : Xcel Energy MN : Xcel Energy ND : Xcel Energy NM : Xcel Energy SD : Xcel Energy TX : Xcel Energy WI : Xcel Energy KY : Louisville Gas & Electric/Kentucky Utilities IN : Indianapolis Power and Light (IP&L) NC : Dominion VA : Dominion
Bus Rating
1200 A
Number of jaws
Five-jaw
Number of sockets
2
Phase
Three-phase in, single-phase out
Socket amperage
225A
Voltage rating
120/240 V
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 35MM220R12
Feature: Plug-in socket design with a five-jaw bus and two sockets. Business Impact: Reduces field wiring time and the likelihood of mis-wiring during commissioning, improving first-pass acceptance. Application: Ideal for commercial metering points, new builds, and retrofit projects where fast, repeatable meter installations are required. Feature: High bus rating of 1200 A. Business Impact: Enables support for large loads and future expansion without upgrading the entire enclosure, lowering capital expense. Application: Suitable for data centers, retail complexes, and multi-tenant facilities with growing power demands. Feature: Three-phase in, single-phase out configuration with 225 A socket amperage. Business Impact: Provides flexible metering topology to accurately monitor multi-circuit panels, reducing the need for multiple meters. Application: Common in mixed-phase distribution schemes and modular panel boards across commercial spaces. Feature: UL Listed safety and 3R enclosure. Business Impact: Enhances compliance, reliability, and installer confidence in both indoor and protected outdoor environments. Application: Widely used in regulated industrial and commercial settings where safety certifications matter most. Feature: Comprehensive physical specifications. Business Impact: Clear space planning with defined dimensions and weight supports precise mounting and transport planning, reducing site surprises. Application: Useful for retrofits and new installations where rack, cabinet, or nook constraints exist. Feature: Warranty and service terms. Business Impact: Lower total cost of ownership with defined protection from installation to shipment. Application: Procurement teams benefit from predictable servicing windows and risk management across projects.
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FAQs
The 35MM220R12 is a plug-in socket meter stack with a five-jaw bus, two sockets, and a 225 A socket amperage capable of 120/240 V operation and a 1200 A bus rating. It supports three-phase in and single-phase out metering, making it suitable for mixed-phase panels in commercial settings.
Plan for a compatible 120/240 V supply and secure the unit within a 3R enclosure. Ensure the panel bus is rated for 1200 A and that the meter’s 225 A sockets align with the installed MCBs. Follow standard LV distribution mounting practices and verify UL Listed compliance after installation.
Yes. The unit is designed for three-phase in, single-phase out configurations, supporting flexible metering topologies in commercial and industrial panels while maintaining safe, code-compliant operation.
The product carries Eaton’s warranty policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first, offering a clear coverage window for field reliability and performance.
The meter stack is UL Listed, ensuring safety compliance across multiple jurisdictions. It is designed for broad compatibility with common utility acceptance practices, including major US markets, supporting imports and site installations in regulated environments.