Eaton commercial meter stack 37MM240R124022 - UL Listed
Part Number: 37MM240R124022
Quick Summary
Eaton commercial meter stack provides three-phase metering and integrated secondary protection for commercial power systems. Facilities often struggle with bulky, nonstandard meter stacks that complicate installation, phase balance, and service upgrades. UL Listed safety certification underpins compliance for electrical equipment used in commercial buildings. This solution also aligns with a heavy-duty power management workflow by offering a 400A rating, ringless cover, and factory A‑B phase balance. With robust compatibility for 208Y/120V systems and a straightforward installation footprint, this meter stack supports efficient procurement and faster project delivery. Its proven reliability reduces field rework and downtime, optimizing maintenance budgets. Engineers can specify Eaton for consistent performance across multi-tenant facilities and new builds.
Product Information
Extended Description
37MM240R124022 Eaton: 37MM-Three-Phase Commercial Meter Stack Modules, 400A, K-frame included secondary breaker, (2) 250A breakers installed, 400A socket, 208Y/120V, Ringless, Aluminum 1200A bus, Lever bypass, Seven-jaws, 2 sockets, Factory A-B phase balance
Product Name
Eaton commercial meter stack
Catalog Number
37MM240R124022
UPC
782116995622
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 two installed 250A breakers and a 400A socket. Benefit: Supports high-load commercial feeds while keeping critical infrastructure protected, reducing the need for mid-project upgrades. Application: Large office campuses and data-center mezzanines requiring reliable three-phase distribution. Feature: Ringless cover and compact footprint. Benefit: Easier access during metering services and faster installation with minimal panel intrusion. Application: Retrofit projects and new builds where space is at a premium. Feature: Aluminum 1200A bus and robust mechanical construction. Benefit: Durable, corrosion-resistant power paths with long-term reliability, lowering maintenance costs. Application: Outdoor or harsh environments common in industrial facilities. Feature: 208Y/120V secondary distribution and factory A‑B phase balance. Benefit: Simplified wiring topology and improved phase balance, enhancing equipment protection and energy measurement accuracy. Application: Commercial facilities with mixed-use electrical systems. Feature: UL Listed certification. Benefit: Clear compliance status for safety and performance; supports procurement approvals and regulatory alignment. Application: Public and private sector projects requiring documented safety standards.
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FAQs
The Eaton 37MM240R124022 is suited for three-phase commercial power applications, including large office campuses, multi-tenant facilities, and light-industrial environments. It provides integrated metering and secondary protection for reliable energy measurement, phase balance, and scalable distribution. Its 400A rating and 208Y/120V capability support high-efficiency load management across varied commercial loads.
The 400A rating handles substantial commercial feeders, reducing the need for early-upgrade metering solutions. The 208Y/120V secondary distribution enables standard low-voltage lighting and receptacle circuits to be wired directly from the meter stack, simplifying installation, improving power quality, and accelerating project timelines in offices, retail centers, and data-ready environments.
Yes. The 37MM240R124022 includes a K-frame supplied secondary breaker and factory A-B phase balance configuration. It accommodates ringless mounting and two sockets, enabling seamless integration with existing switchgear layouts while preserving protective coordination. This compatibility minimizes rework and ensures dependable protection for critical loads.
The product is UL Listed, confirming safety and performance compliance for commercial electrical equipment. While additional standards may apply by jurisdiction, UL Listing is a widely recognized baseline for metering and distribution equipment in the United States and many global markets, aiding procurement and audit readiness.
Plan for heavy-wall installation handling due to its 320 lb weight and 66.625 in depth. The meter stack’s durable aluminum bus and ringless design reduce long-term maintenance and exposure. The one-year warranty from installation or 18 months from shipment supports risk reduction, while the UL Listed certification aids faster commissioning and predictable ROI for ongoing facility operations.