Eaton 37MM240R1240C39 Commercial Meter Stack - UL Listed
Part Number: 37MM240R1240C39
Quick Summary
Eaton commercial meter stack delivers modular power distribution for multi-circuit meter banks in commercial facilities. Engineers often wrestle with space constraints, complex phase balance, and ensuring safe, code-compliant installation. UL Listed safety certification supports reliable operation in demanding electrical environments, helping facilities stay compliant while reducing risk. Designed for commercial metering and power distribution, this unit enables faster contractor onboarding, streamlined maintenance, and scalable capacity for growing electrical loads across offices, retail, or light industrial applications. Beyond safety, the meter stack offers robust features that shorten project timelines and lower lifecycle costs, making it a dependable foundation for energy management programs and smarter building operations.
Product Information
Extended Description
37MM240R1240C39 Eaton: Eaton commercial meter stack, 37MM-3-Phase, Modules, 400A, Copper Bus, K-frame (1) 300A and (1) 200A 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
37MM240R1240C39
UPC
786689064204
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
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 37MM240R1240C39
Feature: 400 A amperage rating and 208Y/120V three-phase service align with common commercial loads while leaving headroom for growth. Business impact: supports reliable power delivery with minimal panel upgrades, reducing downtime and extending asset life. Application: new builds and retrofits in offices, retail centers, and light industrial facilities. Feature: two sockets plus a 400A socket, ringless cover, lever bypass, and seven-jaws simplify wiring, enable faster field installation, and reduce commissioning time. Business impact: lower labor costs and quicker time-to-energize, improving project ROI. Application: rapid metering installations and service upgrades. Feature: copper bus with Aluminum 1200A bus design enhances conductivity and fault tolerance, delivering robust performance in demanding environments. Business impact: improved reliability, lower heat rise, and longer service intervals. Application: large floor‑space commercial occupancies and data‑driven facilities. Feature: factory A-B phase balance supports accurate metering and reduced imbalance losses. Business impact: improved billing accuracy and energy management insights, enabling better demand management. Application: energy analytics programs and utility‑driven metering schemes. Feature: substantial dimensions and weight (66.625 in L, 19.375 in W, 8.75 in H, 320 lb) provide a rigid, secure enclosure suitable for mechanical rooms and stairwell penetrations. Business impact: stable installation with predictable maintenance access and fewer field adjustments. Application: retrofit and new construction in constrained spaces. Feature: UL Listed certification and included Eaton warranty (1 year from installation or 18 months from shipment) deliver regulatory confidence and support longevity. Business impact: simplifies compliance audits, enhances resale value, and lowers lifecycle risk. Application: regulated commercial projects and cross‑site deployments.
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FAQs
Yes. This meter stack is designed for 208Y/120V three‑phase service and can be integrated into existing commercial feeders. Plan for a deep, dry, accessible service area with adequate vertical clearance and enough space to accommodate the 66.625 inches of length and 19.375 inches of width. Ensure proper mounting surface and adequate headroom for lever bypass operation and maintenance access.
Key specs include a 400A amperage rating, 208Y/120V three‑phase service, two sockets plus one 400A socket, and a ringless cover. It features copper bus with Aluminum 1200A bus, lever bypass, seven‑jaw design, and factory A‑B phase balance. The unit also comes with one 300A and one 200A breaker installed, supporting flexible configuration and reliable metering.
Ideal for office buildings, retail centers, and light industrial facilities that require reliable, scalable metering and compact power distribution. Its modular design and phase balance capabilities support energy management programs, utility coordination, and future-load growth without extensive rework. It also suits retrofit projects where minimizing space and downtime is critical.
The product is UL Listed, providing recognized safety certification for electrical equipment and helping ensure compliance with applicable codes and standards in commercial installations. While other certifications are not listed in the data, UL Listing is a strong indicator of safety and reliability for metering equipment in professional settings.
The meter stack is covered under Eaton's warranty policy (25-000), offering one year from installation or eighteen months from shipment, whichever occurs first. This provides protection against manufacturing defects and supports ongoing maintenance planning. For repairs, replacements, or upgrades, Eaton's product support and catalog resources are available via official channels.