Eaton 37MM240R1240C93 Industrial Meter Stack - UL Listed
Part Number: 37MM240R1240C93
Quick Summary
The Eaton commercial meter stack is designed for robust 3-phase metering and feeder protection in commercial facilities. Many projects struggle with space constraints, wiring complexity, and downtime during maintenance when upgrading service entrances. This unit leverages UL Listed safety certification and copper 400A bus configuration, with a ringless cover and lever bypass to simplify safe isolation. With 208Y/120V compatibility, factory A-B phase balance, and a ready-to-wire K-frame, it supports faster installations and reliable load management for facility upgrades. By reducing field labor and improving phase balance, it lowers total cost of ownership for engineers and procurement teams.
Product Information
Extended Description
37MM240R1240C93 Eaton: Eaton commercial meter stack, 37MM-3-Phase, 400A, Copper Bus, K-frame (1) 200A and (1) 300A 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
37MM240R1240C93
UPC
786689064242
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 - 37MM240R1240C93
Feature: Pre-installed breakers and a 400A socket enable quick commissioning by reducing field wiring and assembly time, delivering faster project turnover. Business impact: Cuts labor costs, minimizes on-site faults, and accelerates handover to operations. Application: Ideal for new commercial builds and retrofit metering where schedule and safety are paramount. Feature: Copper bus with 1200A aluminum backplane provides low-resistance paths and durable performance under peak loads, improving voltage stability. Business impact: Enhances service reliability, reduces heat buildup, and supports scalable load growth in office, retail, and light industrial settings. Application: Suitable for mid-to-large load profiles with future growth expectations. Feature: Ringless cover and lever bypass facilitate safer maintenance and quicker isolation without excessive downtime. Business impact: Improves safety compliance, reduces maintenance windows, and simplifies lockout/tagout procedures. Application: Frequent access points for metering upgrades or fault isolation. Feature: K-frame design with 66.625 in length, 19.375 in width, 8.75 in height, and 320 lb weight provides sturdy mounting and straightforward integration with existing switchgear. Business impact: Lower installation risk and predictable installation planning for retrofit projects. Application: Heavy-duty commercial environments requiring durable enclosures. Feature: Factory A-B phase balance and 208Y/120V capability support balanced loading and compatible customer loads. Business impact: Reduces neutral currents, enhances efficiency, and simplifies panel coordination. Application: Multi-load commercial facilities with mixed lighting and power circuits. Warranty and certifications: UL Listed warranty coverage from Eaton adds assurance for long-term performance and supplier support, reducing risk for procurement teams during sourcing.
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FAQs
Plan for its 66.625 in length, 19.375 in width, 8.75 in height footprint and 320 lb weight. Ensure adequate mounting clearance, a solid base for the K-frame, and compatible wiring to the 400A socket with two sockets and present 200A/300A breakers. Verify space for safe access to the ringless cover and lever bypass.
The unit supports 208Y/120V operation with factory A-B phase balance and seven-jaw capability, plus one 200A and one 300A breaker in a 400A framework. This configuration promotes balanced loading, reduces neutral currents, and improves overall efficiency for commercial feeders handling diverse 3-phase loads.
Yes. The meter stack is UL Listed, ensuring adherence to recognized safety standards for electrical equipment used in commercial metering. This certification underpins reliability, traceable compliance, and safer field operations during installation and maintenance.
Warranty terms follow Eaton Selling Policy 25-000, offering one year from the date of installation or eighteen months from shipment, whichever occurs first. Coverage includes defects in materials and workmanship under normal use, with Eaton support for logistical and service needs during the warranty period.
Retrofits and new commercial deployments with 400A service needs benefit from pre-installed breakers, copper bus, and ready wiring. The 208Y/120V capability and ringless cover with lever bypass minimize downtime, while phase balancing supports efficient load distribution in offices, retail spaces, and light industrial facilities.