Eaton 37MM420R12C Commercial Meter Stack - UL Listed
Part Number: 37MM420R12C
Quick Summary
Eaton commercial meter stack solutions simplify three-phase metering for commercial buildings. This model consolidates multiple metering points into a single, secure enclosure, reducing installation time and space requirements. UL Listed certification and MEG/Xcel energy approvals support safe, compliant deployment across diverse utility programs. By pairing robust electrical performance with Eaton’s metering ecosystem, you gain streamlined installation, reliable phase balance, and improved energy management for business-wide efficiency.
Product Information
Extended Description
37MM420R12C Eaton: Eaton 37MM Three-Phase Commercial Meter Stack Modules, 225A, Copper Bus 1200 Ampere, Lever bypass Seven-jaws 4 Socket Three-phase in, three-phase out Factory A-B Phase Balance, Ringless Security , 225 Ampere Socket, Ampere 208Y/120V
Product Name
Eaton commercial meter stack
Catalog Number
37MM420R12C
UPC
786685481067
Product Length/Depth
8.75 in
Product Height
66.63 in
Product Width
18.25 in
Product Weight
200 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
Utility approvals
IL : Ameren MO : Ameren 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) CO : Xcel Energy MI : Xcel Energy MN : Xcel Energy ND : Xcel Energy NM : Xcel Energy SD : Xcel Energy TX : Xcel Energy WI : Xcel Energy
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 37MM420R12C
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 225A input with a 1200A copper bus; Business Impact: Enables high-current metering for large commercial loads with reduced conductor congestion; Application: Shopping centers, office complexes, and light industrial facilities. Feature: Lever bypass and seven-jaws with four sockets; Business Impact: Improves service flexibility and rapid maintenance without compromising safety; Application: Active metering points needing swift isolation. Feature: 208Y/120V output; Business Impact: Supports common lighting and receptacle circuits within a single stack; Application: Mixed-use facilities and data centers. Feature: Ringless security design; Business Impact: Enhances physical security and simplifies installation clearance; Application: Outdoor and building-perimeter metering enclosures. Feature: Utility approvals (Ameren, MEG, Xcel Energy); Business Impact: Accelerates interconnection and reduces permitting risk; Application: Municipal and utility-coordinated deployments. Feature: UL Listed certification; Business Impact: Demonstrates compliance with recognized safety standards, lowering risk of field failures; Application: All commercial metering installations requiringä¸Ąć Ľ safety compliance. Feature: Dimensions and weight (66.63 in x 18.25 in x 8.75 in, 200 lb); Business Impact: Informed space planning and handling during onsite assembly; Application: Retrofit projects and new-build commercial panels.
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FAQs
The 37MM420R12C is designed for straightforward integration with Eaton low-voltage distribution assemblies and compatible commercial panels. Plan for the 8.75 in depth, 18.25 in width, and 66.63 in height, ensuring clearance for the lever bypass and seven-jaws sockets. Use appropriate conductors for 225A input and copper bus capable of 1200A, and verify 208Y/120V output aligns with local panel schedules. Adhere to UL Listed installation guidelines and secure ringless housing for added safety.
Key ratings include a 225A input, copper bus rated for 1200A, and a 208Y/120V output. These specs enable reliable three-phase metering for high-demand commercial loads, with ample headroom for startup surges. The unit’s three-phase in/out architecture supports accurate phase balance and energy measurement, improving billing accuracy and energy management across multi-tenant facilities.
Yes. The 37MM420R12C is purpose-built for commercial power distribution, offering three-phase metering with robust security features and utility approvals. Its size, current rating, and phase balance capabilities make it ideal for office complexes, shopping centers, and similar installations where accurate metering and dependable operation are critical.
The product is UL Listed, providing recognized safety compliance. It also supports utility approvals through programs like MEG and Xcel Energy, which streamline interconnection in participating regions. Always verify local utility requirements to ensure full acceptance in your specific service territory.
Eaton terms include Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This warranty reduces ownership risk and supports uptime. The ROI comes from improved energy visibility, reduced maintenance time due to accessible bypass features, and faster interconnection with utilities, all contributing to lower operating costs over the asset life.