Eaton 3MM212RRL Residential Meter Stack - UL Listed

Three-phase in, single-phase out design with a 125A rating simplifies load distribution and phase balancing for group metering in multi-dwelling and commercial-residential projects. The 800A bus rating provides headroom for higher demand periods, reducing the need to reconfigure equipment as occupancy grows. This metering module is purpose-built for group-metering applications where reliable service and compact footprint matter most. Aluminum bus construction coupled with an 800A rating delivers robust current handling while keeping weight manageable for field installs. The durable bus material supports long service life and consistent electrical performance, even in environments with vibration or temperature changes. Engineers appreciate the ease of routing conductors through a five-jaw assembly, paired with two sockets for flexible service connections. Indoor/outdoor enclosure versatility enables installation in basements, rooftops, or exterior walls without compromising safety. Five-jaw configurations and ringless security provide reliable, tamper-resistant metering while reducing cabinet clutter and maintenance checks. The module supports three-phase in, single-phase out service models, helping contractors meet space constraints while preserving precise metering accuracy across phases. Compatibility with secondary breakers BR2_, BRH2_, BRHH2_ offers upgrade paths without replacing the entire enclosure, keeping retrofit programs on schedule. The absence of bypass reduces potential fault paths while maintaining straightforward diagnostics and serviceability. Manufacturers and utilities benefit from a standard, scalable footprint that aligns with common metering practices and site-specific electrical codes. UL Listed certification, robust warranty terms, and broad utility approvals support project timelines and risk management. The one-year warranty from installation or eighteen months from shipment helps quantify total cost of ownership, while the meter stack’s solid build minimizes downtime for service providers and end users alike. Equipped for future expansion, the 3MM212RRL stands ready to integrate with additional metering and distribution equipment as buildings grow, reducing the need for major retrofits. In practice, installers appreciate the straightforward wiring pathways, consistent labeling, and Eaton's support network that keeps commissioning on track across diverse sites.