Eaton 37MM240R124043 Commercial Meter Stack - UL Listed
Part Number: 37MM240R124043
Quick Summary
Eaton 37MM240R124043 commercial meter stack delivers 3-phase power metering and distribution for industrial facilities. Engineers often struggle with space constraints, complex phase balancing, and coordinating metering with main feeders during upgrades. UL Listed safety certification supports electrical compliance in commercial environments, while the 208Y/120V configuration aligns with common building feeds. The ringless cover, lever bypass, and factory A-B phase balance streamline maintenance and reduce downtime. This solution delivers measurable business value by enabling faster installs, safer serviceability, and scalable power management for growing facilities. Secondary keywords such as commercial meter stack, 3-phase power distribution, and Eaton meet the needs of procurement and engineering teams seeking reliable, standards-compliant hardware.
Product Information
Extended Description
37MM240R124043 Eaton: 37MM-3-Phase Commercial Meter Stack Modules, 400A, K-frame included secondary breaker, (1) 400A and (1) 300A 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
37MM240R124043
UPC
782116995714
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 → Business Impact → Application: The 400A amperage rating with an installed 400A and 300A breaker provides a robust main distribution path that minimizes field wiring complexity and reduces the need for additional subpanels, accelerating project timelines for data centers, manufacturing lines, and large commercial facilities. This translates to lower installation labor costs and improved load handling during peak demand periods. Application: Industrial facilities requiring dependable, scalable metering for fast commissioning. Feature → Business Impact → Application: Ringless cover design enhances access for maintenance while reducing enclosure contamination risk and improving safety during servicing. This supports safer, quicker maintenance cycles and consistent meter accuracy in high-traffic electrical spaces. Application: Retrofit projects and new builds where serviceability is paramount. Feature → Business Impact → Application: Lever bypass and seven-jaws arrangement simplify disconnects and conductor routing, reducing commissioning time and potential wiring errors. Application: Typical commercial sites upgrading to 208Y/120V three-phase service. Feature → Business Impact → Application: Factory A-B phase balance provides verified phase alignment, improving load balancing and minimizing voltage imbalance across feeders, which sustains equipment efficiency. Application: Data, light manufacturing, and retail infrastructure that require stable power quality. Feature → Business Impact → Application: Two sockets enable modular feeder deployment, enabling phased expansion without replacing the entire stack. Application: Expansion-ready facilities seeking scalable power distribution with minimal downtime.
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FAQs
Installation requires a surface capable of supporting a 320 lb assembly and space for the unit’s 66.625 in length. Plan for 208Y/120V service routing, adequate clearance for the ringless cover and access to the two sockets. Comply with UL Listed safety requirements and refer to the Eaton specification sheet for exact wiring guidelines and torque specs.
The 400A rating supports substantial service at a single stack, reducing the need for multiple subpanels. The 208Y/120V configuration matches common commercial loads, enabling straightforward connection of transformers, breakers, and feeders. This improves reliability, minimizes voltage drop, and shortens project timelines during upgrades or new builds.
Yes, it is designed for commercial 208Y/120V systems and uses standard bus and connector interfaces. The unit’s Al 1200A bus and 2-socket arrangement simplify integration with common switchgear configurations. Always verify compatibility with your site’s feeder schematics and consult Eaton’s data sheet for exact connector and clearance requirements.
The product is UL Listed, confirming adherence to recognized electrical safety standards for commercial metering equipment. This designation supports compliance with applicable codes and procurement requirements, easing the approval process for new installations or upgrades in regulated facilities.
The unit follows Eaton’s warranty policy: one year from the date of installation or eighteen months from the date of shipment, whichever occurs first. This coverage addresses manufacturing defects and ensures timely support for field issues, contributing to predictable maintenance budgeting and reduced downtime.