Eaton 37MM240R1240C43 Meter Stack - UL Listed
Part Number: 37MM240R1240C43
Quick Summary
Eaton 37MM240R1240C43 Meter Stack is a three-phase metering solution designed for commercial service entrances. It provides reliable, balanced metering in a compact footprint to help facilities manage energy use efficiently. A common challenge for engineers is delivering accurate phase balance and safe, fast installation in crowded electrical rooms or outdoor enclosures. UL Listed certification supports safety compliance, while the copper bus and ringless construction enable durable, low-loss power distribution in demanding environments. For businesses, this stack combines a plug-in socket design with a robust 208Y/120V network metering capability, supporting cost-effective tenant metering, simplified maintenance, and scalable expansion in retail, office, and multi-tenant facilities.
Product Information
Extended Description
37MM240R1240C43 Eaton: Eaton commercial meter stack, 37MM-3-Phase, 400A, Copper Bus, K-frame (1) 400A 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
37MM240R1240C43
UPC
786689213244
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 - 37MM240R1240C43
Feature: The 37MM240R1240C43 provides a 37MM, 3-phase, 400A commercial meter stack with copper bus and a sturdy K-frame. It arrives with one 400A and one 350A breaker installed, a 400A socket, and 208Y/120V metering. Business Impact: This pre-configured capability reduces field modification time and commissioning risk, delivering predictable protection and current sharing. Application: Ideal for new builds and retrofit metering in offices, retail spaces, and multi-tenant facilities that demand reliable energy measurement and fast project turnover. Feature: Plug-in socket design, ringless copper bus, lever bypass, seven-jaws, and two sockets support quick service isolation and simple maintenance. Business Impact: Operators realize shorter downtime during feeder swaps and easier phase-balancing adjustments, lowering labor costs. Application: Particularly advantageous in data centers and industrial suites where uptime matters and metering must be swapped without disconnecting main power. Feature: Dimensions measure 66.625 inches long, 8.75 inches tall, and 19.375 inches wide, weighing about 320 pounds. Business Impact: Clear space planning and installation sequencing are improved, reducing scaffolding and crane time on site. Application: Suitable for dedicated meter rooms and wall-mounted arrays in commercial properties. Feature: Mounting exits top, bottom, or back; outdoor use with rainproof cap; Myer type hubs recommended for top exits. Business Impact: Flexible deployment reduces enclosure needs and simplifies site wiring, saving upfront costs. Application: Great for exterior facilities and campus-scale metering installations. Feature: UL Listed certification and A-B phase balance with two sockets and seven-jaws, supporting balanced metering and regulatory compliance. Business Impact: Delivers safe, code-compliant metering in a scalable system, with low maintenance due to durable copper bus and built-in fault tolerance. Application: Serves commercial, retail, and industrial metering applications.
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FAQs
The unit supports main feeders exiting top, bottom, or back. For outdoor installations at the top exit, use a rainproof cap and, if needed, Myer type hubs to ensure weather protection and compliant wiring routes.
It provides 3-phase, 400A service with 208Y/120V metering, plus 120/240V single-phase options. The assembly uses a copper bus, is ringless, features a lever bypass, two sockets, and seven-jaws to support balanced phase connections.
Yes, the 37MM240R1240C43 is UL Listed, designed for commercial metering. Always verify local codes and any regional certifications required for your project to ensure full compliance.
The assembly measures 66.625 inches in length, 19.375 inches in width, and 8.75 inches in height, with an approximate weight of 320 pounds. Plan for suitable hoisting and access in the equipment room or enclosure.
Expect considerations for room space, wiring routes, and mounting orientation. This meter stack offers top, bottom, or back exit options, a plug-in socket configuration for quick installs, and lever bypass for easier maintenance, reducing downtime and enabling faster tenant metering deployments.