Eaton 37MM240R124029 Meter Stack - UL Listed
Part Number: 37MM240R124029
Quick Summary
Eaton commercial meter stack enables integrated three-phase metering for commercial facilities. This design addresses common integration challenges by consolidating metering and protection in a single, scalable enclosure. UL Listed certification validates safety and compliance with standard electrical practices, while the rugged build supports long service life in demanding environments. The solution is optimized for 208Y/120V service with a 400A capacity, offering space efficiency and straightforward installation. For projects requiring reliable metering with adaptable wiring and protection, this model delivers measurable business value through reduced install time and improved system observability. Leveraging Eaton's metering heritage, it aligns with modern power management and distribution workflows.
Product Information
Extended Description
37MM240R124029 Eaton: Eaton commercial meter stack, 37MM-3-Phase Module, 400A, K-frame included secondary breaker, (1) 250A and (1) 200A breaker installed, 400A socket, 208Y/120V, Ringless, Al 1200A bus, Lever bypass, Seven-jaws, 2 sockets
Product Name
Eaton commercial meter stack
Catalog Number
37MM240R124029
UPC
786689061753
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 - 37MM240R124029
Feature: 400A amperage rating with two installed breakers (1 x 250A, 1 x 200A) and a 400A socket. Business Impact: Supports high-load commercial three-phase service while enabling targeted upstream protection, reducing separate panel needs and freeing enclosure space for ancillary equipment. Application: Ideal for large commercial sites and data centers requiring compact, integrated metering and protection within a single enclosure. Feature: Ringless cover and 208Y/120V availability. Business Impact: Enhances safety and ease of access during installation and maintenance, while minimizing enclosure penetration risks. Application: Suitable for tight electrical rooms where enclosure integrity and safe bussing are critical. Feature: Al 1200A bus, lever bypass, and seven-jaws. Business Impact: Improves fault isolation, bypass capabilities, and connection reliability, lowering maintenance time and improving fault response. Application: Useful in retrofit or new-build projects needing robust bus connectivity and swift emergency handling. Feature: Heavy-duty dimensions and weight (66.625 in L x 19.375 in W x 8.75 in H; 320 lb). Business Impact: Provides a rigid, vibration-resistant asset that remains securely in place through service life, reducing reworks. Application: Suitable for floor-based or wall-mounted installations in commercial distribution spaces. Feature: 2 sockets and a 400A socket with UL Listed certification. Business Impact: Streamlines metering and load distribution with built-in versatility, while meeting safety compliance for regulated facilities. Application: Common in utility-adjacent metering centers and switchgear rooms. Feature: Catalog number 37MM240R124029 and UPC 786689061753. Business Impact: Facilitates procurement, traceability, and inventory control for engineering teams. Application: Supports standardized specification across multiple sites. Insight: The unit ships with a 1-year warranty from installation or 18 months from shipment, ensuring post-installation support and reducing lifecycle risk. Application: Aligns with project warranties and procurement SLAs.
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FAQs
The meter stack utilizes a 400A socket and includes space for two sockets, with a ringless cover design that simplifies enclosure mounting. Plan for the 66.625 in length, 19.375 in width, and 8.75 in height, and ensure mounting surfaces and supports can bear the 320 lb weight. The unit integrates with 208Y/120V service and requires standard wiring practices for 3‑phase distribution.
Key specs include a 400A amperage rating, 208Y/120V three-phase service, two sockets, a 400A socket, ringless cover, aluminum 1200A bus, and lever bypass with seven-jaw design. The assembly measures 66.625 inches long, 19.375 inches wide, and 8.75 inches high, weighing 320 pounds, with one 250A and one 200A breaker installed.
Yes, the 37MM240R124029 is UL Listed, ensuring recognized safety compliance. Warranty terms follow Eaton's policy: one year from installation or eighteen months from shipment, whichever occurs first, providing post-installation protection against defects.
This meter stack is designed for commercial environments requiring integrated metering and load protection in a 208Y/120V, 3‑phase setup. It is ideal for office buildings, retail centers, or data centers where space optimization, reliable fault isolation, and straightforward procurement are priorities.
Plan for a large, vibration-resistant mounting area to accommodate the 66.625 in length and 320 lb weight. Ensure compatibility with 400A distribution, space for two sockets, and access for ringless cover maintenance. Consider bus compatibility with aluminum 1200A, and allocate room for lever bypass operation and service wiring to minimize downtime during commissioning.