Eaton 37MM240R124055 Commercial Meter Stack - UL Listed
Part Number: 37MM240R124055
Quick Summary
Eaton commercial meter stack is a modular 400A three-phase metering solution for commercial power distribution. Facilities struggle with bulky, non-integrated meters that complicate maintenance and phase balance. UL Listed safety certification underpins reliability in commercial environments, while built-in features like factory-installed secondary breakers and a ringless cover simplify service and upgrades. This product aligns with Eaton's power management & distribution portfolio, supporting scalable metering for office campuses, retail centers, and light industrial facilities. By streamlining installation and improving fault isolation, it delivers measurable business value through reduced downtime and easier compliance.
Product Information
Extended Description
37MM240R124055 Eaton: 37MM-3-Phase Commercial Meter Stack Modules, 400A, K-frame included secondary breaker, (1) 350A and (1) 350A 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
37MM240R124055
UPC
782116995769
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 with a 400A socket and two sockets. Business Impact: Supports heavy-load distribution with fewer external components, reducing wiring complexity and total installed cost. Application: Ideal for 208Y/120V three-phase commercial installations such as multi-tenant office buildings and retail complexes. Feature: Factory-installed secondary breakers (two 350A breakers). Business Impact: Accelerates commissioning and simplifies field configuration, lowering labor time during installation. Application: Retrofit projects and new builds requiring quick, reliable metering integration. Feature: Ringless cover and lever bypass. Business Impact: Enhances safety during maintenance while minimizing service interruptions and equipment exposure. Application: Critical facilities like data centers and healthcare campuses where uptime matters. Feature: Three-phase, 208Y/120V compatibility. Business Impact: Ensures seamless integration with standard building electrical systems, reducing adapters and custom wiring. Application: Commercial office spaces, clinics, and educational facilities with shared electrical loads. Feature: Dimensional and weight specifications (66.625 in L, 8.75 in H, 19.375 in W; 320 lb). Business Impact: Predictable footprint aids in room and rack planning, supporting efficient layout and ventilation. Application: Utility rooms and mechanical spaces with limited access. Feature: UL Listed certification and Eaton warranty. Business Impact: Elevates regulatory compliance and risk mitigation; warranty coverage provides post-installation support. Application: Environments requiring formal safety validation and reliable service terms for ongoing operations.
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FAQs
The 37MM240R124055 is designed for 208Y/120V, three-phase systems with a 400A rating. It features a ringless cover, lever bypass, and two sockets, with factory-installed secondary breakers. Plan for a 66.625 in long, 19.375 in wide footprint and ensure adequate clearance for access, ventilation, and service. Confirm mounting and bus connections align with the Al 1200A bus specification for reliable phase balance.
This meter stack supports a 400A amperage rating, two sockets, and 208Y/120V three-phase supply. It comes with a 400A socket and includes secondary breakers (two 350A installed). The design includes a ringless cover and lever bypass for safer maintenance. It is UL Listed, aligning with recognized safety standards for commercial electrical installations.
Yes. The unit’s 400A, two-socket configuration with lever bypass and ringless cover supports high-uptime environments where rapid maintenance and safe access are critical. Its UL Listed certification reinforces compliance with safety standards, and its A-B phase balance capability aids in maintaining balanced loads in critical facilities like data centers and medical campuses.
The product is UL Listed, providing recognized safety compliance for commercial electrical installations. It carries Eaton’s warranty policy, stated as one year from installation or eighteen months from shipment, whichever occurs first, offering coverage during early-use and deployment phases.
With factory-installed breakers, lever bypass, and a ringless design, the 37MM240R124055 reduces on-site labor and simplifies routine servicing. The compact footprint and defined dimensions aid in space planning, while UL Listing reduces regulatory risk. Together, these factors translate to lower maintenance costs and faster return on investment for mid-size commercial and light-industrial projects.