Eaton 37MM240R124034 Meter Stack - UL Listed
Part Number: 37MM240R124034
Quick Summary
Eaton commercial meter stack provides centralized metering for three-phase power distribution in commercial facilities. For engineers and procurement teams, coordinating multiple meters and ensuring reliable secondary protection can be costly and error-prone. This product is UL Listed and designed with a ringless cover, two sockets, and built-in 400A service with a 208Y/120V configuration to support safe, scalable installations. The design also features a 1200A aluminum bus, lever bypass, seven-jaws, and factory A-B phase balance to streamline commissioning and reduce field wiring. By consolidating meters and protection in a single assembly, it lowers installed cost, shortens project timelines, and improves ongoing maintenance in commercial power management and distribution workflows.
Product Information
Extended Description
37MM240R124034 Eaton: 37MM-3-Phase Commercial Meter Stack Modules, 400A, K-frame included secondary breaker, (1) 300A 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
37MM240R124034
UPC
782116995684
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: Centralized two-socket meter stack integrates metering and protection in a compact footprint. Business Impact: Reduces panel space needs and simplifies wiring, cutting installation time and labor costs. Application: Ideal for 208Y/120V three-phase commercial feeders where space is at a premium. Feature: 400A amperage rating with a 400A socket and a 300A/400A installed split. Business Impact: Enables scalable load handling and safe, staged upgrades without reconfiguring upstream gear. Application: Suitable for growing commercial facilities requiring robust service capability. Feature: Ringless cover and lever bypass for quick service access. Business Impact: Improves safety and minimizes downtime during maintenance or metering changes. Application: Routine commissioning and emergency servicing in busy commercial environments. Feature: Aluminum 1200A bus with 7-jaw configuration and factory A-B phase balance. Business Impact: Enhances electrical performance, reduces voltage imbalance, and supports reliable parallel operation. Application: Critical for predictable load distribution in multi‑breaker assemblies. Feature: UL Listed certification and standard compliance alignment. Business Impact: Facilitates regulatory acceptance and simplifies site audits. Application: Required in regulated markets and healthcare/education portfolios. Feature: 66.625 in length, 19.375 in width, 8.75 in height, and 320 lb weight. Business Impact: Clear installation planning data for rack mounting, clearance, and transport logistics. Application: Project scoping for large commercial power distribution installations.
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FAQs
The meter stack measures 66.625 in long, 19.375 in wide and 8.75 in high, weighs about 320 lb, and includes two sockets with a built-in 400A/300A‑400A arrangement. Plan for clearance, adequate support for the enclosure, and routing of 208Y/120V feeders. The ringless cover and lever bypass facilitate quick service access during commissioning and maintenance.
This model is rated for 400A with a 208Y/120V three-phase service. It features a 400A socket, two sockets total, seven-jaw configuration, and an aluminum 1200A bus. Compatibility with standard commercial feeders and distribution panels is supported, and the A-B phase balance aids in reducing voltage imbalance across phases during operation.
Yes. Designed for 208Y/120V three-phase systems, the Eaton 37MM240R124034 provides centralized metering with two sockets and an integrated secondary protection pathway. Its 400A rating and phase-balancing features make it appropriate for mid-range commercial facilities and light industrial environments requiring reliable, centralized metering.
The meter stack is UL Listed, a key safety certification widely recognized in North America. This certification supports compliance with electrical safety standards and simplifies acceptance tests, inspections, and commissioning in regulated settings such as commercial buildings and campuses.
Eaton provides a warranty per policy 25-000: one year from the date of installation or eighteen months from shipment, whichever occurs first. Support includes access to Eaton's specification sheets and field services through authorized channels, with the unit designed for straightforward maintenance and long-term reliability in demanding environments.