Eaton 37MM240R124023 Commercial Meter Stack - UL Listed
Part Number: 37MM240R124023
Quick Summary
Eaton commercial meter stack provides a compact, multi-meter solution for 3-phase electrical distribution in industrial facilities. Engineering teams often contend with limited space, commissioning delays, and access challenges when installing metering enclosures. UL Listed safety certification supports regulatory compliance, while the one-year warranty adds financial protection during commissioning and first-year operation. This model also aligns with power-management and industrial automation initiatives, delivering reliable metering with scalable 400A capacity and robust bussing for long-term facility reliability.
Product Information
Extended Description
37MM240R124023 Eaton: 37MM-3-Phase Commercial Meter Stack Modules, 400A, K-frame included secondary breaker, (1) 250A 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
37MM240R124023
UPC
782116995639
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
The 400A amperage rating supports high-demand loads while the two sockets enable independent metering or advanced load segmentation, improving accuracy and maintenance planning in commercial and industrial spaces. This feature translates to tangible business impact by reducing energy costen and enabling precise billing for tenants or production lines. In practice, this configuration is ideal for data centers or large facilities where phased power distribution and quick isolation are crucial for uptime and safety. Ringless cover and lever bypass simplify service access, accelerating maintenance windows and minimizing downtime during upgrades or fault isolation. The seven-jaws design enhances fault tolerance and reduces nuisance trips, helping facilities maintain continuous operation with fewer interruptions. The 208Y/120V output matches common utility services, simplifying panel integration and reducing wiring complexity, while the Al 1200A bus ensures durable, low-resistance power delivery for sustained performance. Factory A-B phase balance supports balanced loading, improving voltage regulation and equipment longevity. With included K-frame secondary breakers (1x 250A and 1x 300A) and overall footprint suited for narrow enclosures, this meter stack delivers scalable metering with straightforward installation in space-constrained environments.
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FAQs
The unit measures 66.625 inches in length, 8.75 inches in height, and 19.375 inches in width, and weighs about 320 pounds. These dimensions influence enclosure selection, mounting clearances, and shipping considerations for installation planning and site readiness.
Yes. This meter stack is specified for 208Y/120V output, aligning with common commercial and light industrial utility services. This compatibility simplifies interconnection to downstream panels and reduces wiring complexity during commissioning.
The unit comes with a 400A socket and factory-installed secondary breakers comprising one 250A and one 300A. This configuration supports staggered metering and balanced distribution while enabling selective load shedding and improved fault isolation.
The meter stack is UL Listed, ensuring conformance to recognized safety standards for electrical equipment. While CE/SIL/IP ratings are not listed in the provided data, UL Listing provides a baseline for market approvals, supplier qualification, and installation safety in many North American facilities.
Eaton supplies a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever comes first. Regular maintenance should prioritize verifying lever bypass functionality, inspecting the ringless cover for integrity, and confirming phase balance to maintain optimal voltage regulation and reliability.