Eaton 3MM320R12RLBCPS Residential Meter Stack - UL Listed
Part Number: 3MM320R12RLBCPS
Quick Summary
Eaton 3MM320R12RLBCPS residential meter stack enables centralized metering for multi-tenant buildings. Without a robust meter stack, coordinating service drops, ensuring accurate energy accounting, and consolidating readings can be error‑prone and costly. The unit carries UL Listed safety certification to support critical electrical projects, and Eaton’s warranty policy provides protection: one year from installation or eighteen months from shipment, whichever comes first. In practice, this stack supports a 200A service, 120/208V operation, and a 3‑phase in, 1‑phase out arrangement with SS meter guides and a fifth jaw for reliable, scalable metering in modern distribution layouts.
Product Information
Extended Description
3MM320R12RLBCPS Eaton: Eaton 3MM residential meter stack, SS meter guides, Multiple meter, 200A, Al, Bus:1200A, Horn by, Out, Depends on MCB, 5-j, Sockets:3, 3-ph in, 1-ph out, A-B, CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM, CVH2_XMM, Ringless, Socket:200A, 120/208V
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM320R12RLBCPS
UPC
786685494692
Product Length/Depth
13.5 in
Product Height
52.35 in
Product Width
7.01 in
Product Weight
143 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
Catalog Notes
Fifth jaw included at 9oclock position
Special features
SS meter guides
Type
Multiple metering
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 3MM320R12RLBCPS
Feature: SS meter guides provide precise alignment for meters and rails, reducing misreads and stubborn misalignments during installation. Business Impact: faster commissioning, fewer reworks, and improved data integrity for energy accounting programs. Application: residential high-rise meter rooms and multi‑tenant commercial spaces where multiple meters share a common enclosure benefit from consistently positioned sockets and guides that speed service setup and ongoing readings. The result is a more reliable metering backbone that supports ongoing energy analytics and bill accuracy. Feature: Type is multiple metering with 3‑phase in, 1‑phase out, and a 200A socket arrangement. Business Impact: enables flexible split‑phase billing and scalable channelization without duplicating equipment, reducing capital and maintenance costs. Application: apartment complexes, mixed-use buildings, and campus facilities where single enclosure must serve several tenants while preserving isolation between meters. Feature: Bus rating 1200A and the fifth jaw included at 9 o'clock position, plus socket 200A. Business Impact: allows heavy bus loading and future capacity expansion with minimal field modification. Application: new builds with long service life and retrofit projects where meter stacks must adapt to evolving electrical demand without extensive rewiring. Feature: UL Listed certification and Eaton's established warranty policy provide safety and financial assurance. Business Impact: lowers risk of compliance violations, supports warranty provisioning, and simplifies procurement with documented standards. Application: critical buildings such as data centers, schools, and healthcare facilities where metering reliability and documented standards underpin operations. Feature: 120/208V compatibility and the tall footprint of 52.35 in height and 7.01 in width. Business Impact: simplifies integration with existing distribution panels, reduces installation time, and preserves space planning in constrained rooms. Application: retrofit projects in building cores where space efficiency and voltage compatibility are essential.
Get a Quick Quote for a Eaton 3MM320R12RLBCPS
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton 3MM320R12RLBCPS?
Enquire Now
FAQs
The 3MM320R12RLBCPS supports 120/208V operation and a 200A service configuration with 3‑phase in, 1‑phase out. It includes a 1200A bus and a 200A socket, along with SS meter guides and a fifth jaw at 9 o'clock, making it suitable for multi‑meter rooms in residential or light commercial settings while preserving phase isolation and accurate metering.
This model is designed for multiple metering with 3‑phase in, 1‑phase out configuration, enabling separate measurement channels for multiple tenants without duplicating equipment. The arrangement improves billing accuracy by isolating each meter’s readings, reduces commissioning time, and simplifies later expansions as demand grows in multi‑tenant properties.
Facilities in regulated environments—such as multifamily buildings, data centers, schools, and healthcare—benefit from UL Listed certification, which validates safety and performance. The warranty, per Eaton policy, provides one year from installation or eighteen months from shipment, whichever comes first, reducing risk and supporting long-term ownership costs.
The fifth jaw included at the 9 o'clock position and the 200A socket arrangement simplify alignment and secure connections during assembly. This reduces field adjustments, speeds up immersion into service, and enhances reliability for high‑density meter banks common in multi‑tenant or campus installations.
Yes. With a 1200A bus rating and a 200A socket, the stack is designed to accommodate future growth without major rework. Its modular metering configuration supports scalable channels, enabling straightforward upgrades as electrical demand increases in retrofit or new-build projects.