Eaton 37MM240R1240C35 Meter Stack - UL Listed
Part Number: 37MM240R1240C35
Quick Summary
Eaton 37MM240R1240C35 meter stack is a plug-in socket solution for 3-phase metering in commercial and light-industrial panels. Engineers often struggle with mounting flexibility and reliable phase balance when expanding metering capacity. This UL Listed unit combines a copper bus, ringless 400 A socket, and a ready-to-use A‑B phase balance configuration to simplify installation and improve accuracy. For regional compliance, verify additional certifications like CE or IP ratings with Eaton documentation. By supporting top, bottom, or back entry and outdoor rainproof hub compatibility, it reduces installation risk and delivers faster, safer metering deployments in commercial panels and metering projects.
Product Information
Extended Description
37MM240R1240C35 Eaton: Eaton commercial meter stack, 37MM-3-Phase, 400A, Copper Bus, K-frame (1) 300A and (1) 350A breaker installed, 400A socket, 208Y/120V, Ringless, Al 1200A bus, Lever bypass, Seven-jaws, 2 sockets, Factory A-B phase balance
Product Name
Eaton 35MM commercial meter stack
Catalog Number
37MM240R1240C35
UPC
786689213220
Product Length/Depth
66.625 in
Product Height
8.75 in
Product Width
19.375 in
Product Weight
320 lb
Certifications
UL Listed
Catalog Notes
Main tenant feeders can exit top, bottom, or back, If being used in outdoor application and exiting the top, mount Myer type hubs on rainproof cap. 120/240V, single-phase, three-wire systems and 208Y/120V network metering
Type
Plug-in socket
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 37MM240R1240C35
Feature: Plug-in socket meter stack with a 400 A main socket and a pre-installed combination of 1 x 300 A and 1 x 350 A breakers. Business Impact: Accelerates panel wiring and reduces on-site labor while maintaining robust fault tolerance and metering accuracy. Application: Ideal for 208Y/120 V networks in commercial or light-industrial buildings. Feature: Copper bus and ringless design deliver low-resistance power distribution with simplified maintenance. Business Impact: Improves reliability and lowers heat rise, contributing to energy efficiency and longer component life. Application: Suitable for high-amp metering in 3-phase panels. Feature: Multiple feeder exit options (top, bottom, or back) and rainproof hub compatibility for outdoor use. Business Impact: Flexible installation reduces rework and protects metering hardware in harsh environments. Application: Outdoor meter stacks and indoor/outdoor metering projects. Feature: Lever bypass and seven-jaws with two sockets provide versatile metering configurations. Business Impact: Facilitates safe maintenance and adaptable metering layouts, cutting downtime. Application: Commercial panel metering where serviceability matters. Feature: Dimensions and weight (66.625 in L x 19.375 in W x 8.75 in H; 320 lb) support precise planning and retrofit fit. Business Impact: Streamlines procurement and space planning for new builds and renovations. Application: Industrial and large-branch commercial installations. Safety/Compliance: UL Listed certification ensures adherence to safety standards for electrical distribution equipment; confirm any regional certifications required by your project.
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FAQs
This meter stack supports top, bottom, or back entry for main tenant feeders, with optional Myer-type hubs for outdoor rainproof installation. The flexible exit options simplify mounting in both new panels and retrofits, reducing wiring complexity and speeding up commissioning.
Key specs include a 400 A socket with one 300 A and one 350 A breaker installed, 208Y/120 V network metering, and a 120/240 V single-phase capability. The unit uses a copper bus and is UL Listed, designed for plug-in socket metering in commercial applications.
Yes, it supports outdoor deployments when paired with rainproof hubs and appropriate weatherproofing. Mounting can be top, bottom, or back exit, and outdoor use is facilitated by the hub options specified in the catalog notes.
The product is UL Listed, providing recognized safety compliance for electrical distribution equipment. For projects in other regions, consult Eaton documentation to confirm CE or IP ratings as required by local regulations and installation standards.
It accelerates installation with a plug-in socket design, ensures accurate A-B phase balance, and offers flexible feeder exits and outdoor readiness. The robust copper bus, lever bypass, and multiple sockets support scalable metering, reducing downtime and improving overall panel reliability.