Eaton 3MM212C2BC Residential Meter Stack - UL Listed
Part Number: 3MM212C2BC
Quick Summary
The Eaton 3MM residential meter stack enables multi-metering for residential and light commercial service panels. This design addresses the challenge of aggregating meters in confined spaces while maintaining clear labeling and reliable data. UL Listed certification provides safety assurance, aligning with standard electrical codes and field practices. With indoor installation and compatibility with standard MCB configurations, this product supports scalable metering programs, accurate energy billing, and streamlined maintenance. For developers, property managers, and integrators, it delivers a dependable, future-ready solution that reduces total cost of ownership while improving energy visibility across tenants and circuits.
Product Information
Extended Description
3MM212C2BC Eaton: Eaton 3MM residential meter stack, Multiple metering, 125A, Copper, Bus:800A, No bypass, Indoor, Depends on selected MCB, Five-jaw, Sockets:2, Three-phase in, single-phase out, B-C, BR2_, BRH2_, BRHH2_, BRX2, Ring, Socket:125A, 120/208 Vac
Product Name
Eaton 3MM residential meter stack
Catalog Number
3MM212C2BC
UPC
782114631904
Product Length/Depth
12.26 in
Product Height
41.8 in
Product Width
7.01 in
Product Weight
52 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
Type
Multiple metering
Feature → Business Impact → Application: Multiple metering enables simultaneous measurement across circuits or tenants, delivering precise energy data for usage-based billing and demand management. This improves revenue assurance and enables smarter load balancing across the distribution panel. Application: ideal for multi-tenant residential buildings, student housing, or small commercial deployments where separate sub-metering is required. Feature → Business Impact → Application: 125A service with a copper bus rated for 800A provides high fault tolerance and future-proofing for evolving loads. Benefit: enhanced reliability and reduced need for early panel upgrades. Application: supports robust service-entry metering in mid-size installations and retrofits where expansion is anticipated. Feature → Business Impact → Application: Sockets:2, five-jaw design with ring capability and BR-series compatibility enables flexible wiring configurations and easy MCB integration. Benefit: faster commissioning and reduced field wiring errors. Application: retrofit or new-build metering enclosures in apartments or mixed-use facilities. Feature → Business Impact → Application: Three-phase in, single-phase out with 120/208 VAC supports common building service configurations while maintaining indoor protection and no bypass. Benefit: dependable metering fidelity and simplified electrical distribution planning. Application: suitable for indoor metering stacks serving mixed loads and multi-circuit panels. Feature → Business Impact → Application: UL Listed certification plus standard warranty provides safety confidence and post-sale support, mitigating regulatory risk and warranty claims. Benefit: smoother procurement, faster project sign-off, and clearer maintenance expectations. Application: asset procurement across building portfolios where safety and service continuity are priorities.
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FAQs
The Eaton 3MM212C2BC is designed for indoor use in multi-tenant residential and light commercial service panels. With its multiple metering capability and 125A main, it supports separate sub-metering for tenants while fitting within standard indoor cabinets. The unit's 120/208 VAC compatibility makes it suitable for common utility configurations found in modern buildings.
Key specs include a 125A service rating, copper bus rated for 800A, sockets:2, five-jaw design, and 120/208 VAC operation. It supports three-phase in and single-phase out, with no bypass, making it ideal for accurate measurement. The unit is UL Listed, ensuring compliance with established safety standards.
Multi-metering provides per-tenant or per-circuit energy data, enabling precise usage-based billing and better demand management. It reduces data gaps between tenants, improves load balancing, and supports utility and occupancy optimization. The integrated design also simplifies data collection and reporting for facilities managers.
Yes, the product carries UL Listed certification, indicating compliance with recognized safety standards for electrical equipment. This certification supports regulatory approval during procurement and reduces commissioning risk. Always confirm local code requirements, but UL Listed is a strong indicator of reliability and safety for indoor meter stacks.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Regular maintenance should focus on verifying MCB compatibility and ensuring proper labeling. Given the UL Listed status and Eaton’s warranty policy, you’ll have predictable support and replacement options if issues arise during the warranty period.