Eaton 37MM140R1240250 Commercial Meter Stack - UL Listed
Part Number: 37MM140R1240250
Quick Summary
Eaton commercial meter stack is a compact, three-phase metering and distribution solution for industrial and large commercial facilities. It addresses space constraints and integration challenges by delivering metering, switching, and phase balance in a single module. UL Listed safety certification supports compliance, while Eaton’s warranty policy adds risk protection across install and operation. With 208Y/120V support and a 400A rating, it meets demanding commercial loads without excessive footprint. The 1200A bus and seven-jaw socket simplify service entry and future expansion. For procurement teams, the system offers predictable performance, simpler maintenance, and faster service restoration in critical power environments.
Product Information
Extended Description
37MM140R1240250 Eaton: 37MM-Three-Phase Commercial Meter Stack Modules, 400A, K-frame included secondary breaker, 400A socket, 208Y/120V, Ringless, Aluminum 1200A bus, 250A breaker trip, Lever bypass, Seven-jaws, 1 socket, Factory A-B phase balance
Product Name
Eaton commercial meter stack
Catalog Number
37MM140R1240250
UPC
782116995448
Product Length/Depth
52.63 in
Product Height
8.75 in
Product Width
18.25 in
Product Weight
218 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
Bus Rating
1200 A
Number of jaws
Seven-jaw
Amperage Rating
400A
Number of meter socket
1
Eaton Specification Sheet - 37MM140R1240250
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: High-capacity bus rating and main amperage. Business Impact: Supports substantial load while reducing the number of separate devices, cutting installation time and ongoing maintenance costs. Application: Ideal for large commercial and light-industrial facilities that require robust metering and distribution in one enclosure. Long-tail keywords: three-phase meter stack, 1200A bus, 400A amperage rating. Feature: Ringless seven-jaw meter socket with lever bypass. Business Impact: Simplifies meter changes and future upgrades with minimal downtime and fewer field rewires. Application: Suitable for facilities with frequent metering changes or service upgrades. Long-tail keywords: seven-jaw meter socket, lever bypass, ringless design. Feature: 208Y/120V compatibility. Business Impact: Ensures compatibility with standard electrical equipment and reduces compatibility risk in mixed-use facilities. Application: Commercial buildings and data centers. Long-tail keywords: 208Y/120V systems, standard electrical distribution. Feature: Physical footprint and build quality. Business Impact: A compact yet sturdy module (52.63 in L x 18.25 in W x 8.75 in H; 218 lb) enables easier installation in restricted spaces. Application: Retrofit projects and new builds with space constraints. Long-tail keywords: space-saving electrical distribution, modular meter stack, field-ready enclosure. Feature: UL Listed certification and warranty. Business Impact: Improves safety compliance and provides a defined warranty window for procurement risk reduction. Application: Regulated environments and maintenance planning. Long-tail keywords: UL Listed, safety compliance, Eaton warranty policy. Feature: Phase balance and expandability. Business Impact: Factory A-B phase balance features support accurate metering and simplified future expansion. Application: Industrial plants needing precise phase alignment. Long-tail keywords: phase balance, metering accuracy, future expansion.
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FAQs
This meter stack is designed for 208Y/120V systems and requires a suitable enclosure with mounting provisions for a six to eight inch deep module. Ensure proper grounding, conductor sizing for 400A feeders, and clear access for the lever bypass. The compact dimensions support straightforward retrofit in medium-to-large facilities while maintaining serviceability.
Key specs include a 400A amperage rating, a 1200A bus rating, one meter socket, seven jaws, and a three-phase 208Y/120V configuration. The unit measures 52.63 in long, 18.25 in wide, and 8.75 in high, with an approximate weight of 218 lb, suitable for robust, space-conscious installations.
Yes. The 1200A bus rating and 400A metering capability make it appropriate for large commercial and industrial facilities. The design supports phasing balance and future expansion, while a UL Listed certificate provides safety compliance for regulated power environments and reduces installation risk.
The product is UL Listed, indicating compliance with recognized safety standards for electrical equipment. While other certifications like SIL, CE, or IP ratings are not listed in the provided data, ensure regional code checks and consult Eaton documentation for any additional regional approvals required for your project.
Warranty follows Eaton Selling Policy 25-000, offering one year from the date of installation or eighteen months from shipment, whichever occurs first. This coverage supports post-installation protection, with Eaton providing service guidance and replacement parts as needed to minimize downtime.