Eaton 35MM240R1240C23 Commercial Meter Stack - UL Listed
Part Number: 35MM240R1240C23
Quick Summary
The Eaton 35MM240R1240C23 is a plug-in meter stack for three-phase in, single-phase out metering in commercial installations. Engineers often face downtime and wiring errors during panel upgrades, which this unit helps mitigate with a plug-in socket design and flexible feeder exits. Built to withstand outdoor conditions and demanding service, it carries UL Listed certification and a NEMA 3R-rated enclosure, supporting reliable performance in varied environments. With a 400A rating and 120/240V single-phase metering, it scales to mid-size loads while keeping installation time and risk to a minimum. For project teams and maintenance crews, this meter stack delivers faster commissioning, safer maintenance, and better visibility into energy use—key values for commercial energy management and procurement.
Product Information
Extended Description
35MM240R1240C23 Eaton: Eaton 35MM commercial meter stack, Plug-in socket, 400A, Cu, Bus:1200A, Lever bypass, NEMA 3R, Depends on selected MCB, Five-jaw, Sockets:2, Three-phase in, single-phase out, A-B, 400A, K-frame included, Ringless, Socket:400A, 120/240 Vac
Product Name
Eaton 35MM commercial meter stack
Catalog Number
35MM240R1240C23
UPC
786689166083
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
Number of jaws
Five-jaw
Number of sockets
2
Phase
Three-phase in, single-phase out
Amperage Rating
400A
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 35MM240R1240C23
Feature: Plug-in socket design and five-jaw main reduce on-site wiring complexity and accelerate installation, which directly lowers labor costs and minimizes commissioning timelines. Business impact: faster project turnover and fewer wiring errors translate to quicker ROI on metering upgrades. Application: ideal for new commercial builds and retrofit metering where reliability and speed matter. Feature: Amperage rating of 400A with two sockets and three-phase in, single-phase out support aligns with common commercial service configurations, delivering scalable energy monitoring and load management. Business impact: enables precise tracking of multi-load hardware while maintaining safety margins; Application: mid-size commercial facilities and data centers. Feature: NEMA 3R-rated enclosure plus UL Listed certification ensure outdoor readiness and compliance, reducing weather-related failures and audit findings. Business impact: greater uptime and regulatory confidence; Application: exterior equipment rooms and outdoor installations. Feature: Flexible main feeder exits (top, bottom, or back) and ringless design streamline retrofit and cabinet integration, cutting site modification time. Business impact: simplified retrofits; Application: upgrade projects and modular energy systems. Feature: 120/240V metering and 208Y/120 network compatibility support diverse building architectures, enabling cross-site deployment. Business impact: standardization across sites; Application: multi-site facilities and energy management programs.
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FAQs
This meter stack offers top, bottom, and back exit options, plus a plug-in socket design and five-jaw main. The combination simplifies feeder routing, minimizes field wiring, and reduces the risk of mis-wiring in cramped cabinets, enabling faster, safer installations for retrofit or new-build projects.
It is specified for three-phase in and single-phase out with a 400A rating and two sockets, supporting 120/240V metering. This configuration aligns with common commercial power systems and enables accurate monitoring of individual phase loads while maintaining compatibility with standard MCB selections.
Yes. The enclosure is NEMA 3R-rated, and the product carries UL Listed certification, providing reliable outdoor performance and electrical safety in variable weather conditions typical of commercial applications.
The plug-in socket design reduces field-wiring work and risk, while the lever bypass and flexible exit options cut maintenance time and improve service continuity. These features collectively shorten commissioning, simplify fault isolation, and lower lifecycle maintenance costs for facilities teams.
Key documentation includes the Residential and Light Commercial metering catalog, plus the Eaton specification sheet for model 35MM240R1240C23. UL Listed certification and NEMA 3R enclosure details provide regulatory confidence for procurement and audit readiness.