Eaton 37MM240R124054 Commercial Meter Stack - UL Listed
Part Number: 37MM240R124054
Quick Summary
The Eaton commercial meter stack is a 3‑phase metering solution for commercial buildings. It is designed to streamline metering installation and reduce field wiring complexity during upgrades or expansions. UL Listed certification underscores safety and performance compliance, while features such as the aluminum 1200A bus, lever bypass, seven-jaws, and factory A‑B phase balance support reliable, balanced power delivery. With its substantial dimensions and two sockets, the unit fits utility rooms and service enclosures without compromising accessibility for maintenance. This meter stack aligns with broader power management and distribution strategies, delivering scalable metering for mid-market commercial projects and streamlining lifecycle asset management.
Product Information
Extended Description
37MM240R124054 Eaton: 37MM-3-Phase Commercial Meter Stack Modules, 400A, K-frame included secondary breaker, (1) 350A and (1) 400A breaker installed, 400A socket, 208Y/120V, Ringless, Al 1200A bus, Lever bypass, Seven-jaws, 2 sockets, Factory A-B phase balance
Product Name
Eaton commercial meter stack
Catalog Number
37MM240R124054
UPC
782116995752
Product Length/Depth
66.625 in
Product Height
8.75 in
Product Width
19.375 in
Product Weight
320 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
Number of sockets
2
Amperage Rating
400A
Cover
Ringless
Feature: 400A amperage rating enables higher service capability without needing oversized infrastructure. Business Impact: Supports power-intensive loads while minimizing initial system upgrades and equipment footprints. Application: Suitable for 3‑phase commercial facilities planning future growth. The Eaton meter stack is designed for reliability and efficiency in everyday operations. Feature → Business Impact → Application: Lever bypass provides seamless service isolation during maintenance, reducing downtime and accelerating repair work in busy facilities. Feature → Business Impact → Application: Two sockets and 208Y/120V availability simplify distribution wiring and metering across zones, improving measurement accuracy and fault isolation in retail centers. Feature → Business Impact → Application: Ringless cover enhances safety and serviceability, allowing faster access without compromising enclosure integrity in mechanical rooms. Feature → Business Impact → Application: Aluminum 1200A bus and seven-jaws increase hardware durability and fault tolerance, supporting long-term reliability in institutional settings. Feature → Business Impact → Application: Factory A‑B phase balance helps maintain even load distribution, reducing peak demand penalties and improving energy management programs. Feature → Business Impact → Application: UL Listed certification reinforces compliance with electrical safety standards, which mitigates risk during audits and installations.
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FAQs
Begin by confirming service rating and space for the 66.625 in L x 8.75 in H x 19.375 in W enclosure. Power down, mount the unit in a suitable electrical room, connect the 208Y/120V feeders to the two sockets, and verify the 400A socket and bus connections. Use the lever bypass for safe isolation during maintenance and test for proper phase balance.
Key specs include a 400A amperage rating, two sockets, 208Y/120V service, ringless cover, 66.625 in length, 8.75 in height, 19.375 in width, 320 lb weight, aluminum 1200A bus, and UL Listed certification. It ships with factory A‑B phase balance and includes a secondary breaker configuration (one 350A and one 400A).
Yes. It’s designed for 3‑phase 208Y/120V systems and features factory A‑B phase balance, a ringless design for safer enclosure access, and a robust 1200A bus. Its dimensions and mounting footprint accommodate many standard service cabinets, while the two sockets support flexible metering arrangements.
The unit is UL Listed, indicating compliance with recognized safety standards for electrical equipment. This certification supports regulatory compliance, simplifies code inspections, and reduces risk during commissioning and audits in commercial facilities.
Warranty follows Eaton policy 25-000, offering one year from installation or 18 months from shipment, whichever occurs first. For service, field support, or replacement parts, contact Eaton’s technical support or your AutomationDatabase account manager to coordinate next steps and ensure minimal downtime.