Eaton 1MM320RRLBC Residential Meter Stack - UL Listed
Part Number: 1MM320RRLBC
Quick Summary
The Eaton 1MM320RRLBC Residential Meter Stack enables multi-point metering in a compact enclosure for multi-tenant facilities. In shared buildings, engineers often battle wiring clutter, miswired circuits, and longer project timelines when upgrading metering. This unit is UL Listed and housed in a rugged NEMA 3R enclosure, with copper bus rated at 600 A and a 120/240 V supply, ensuring reliable operation through weather exposure. By consolidating meters into a single, scalable solution, it reduces install risk and supports accurate energy visibility across tenants. Ideal for residential, mixed-use, and light commercial developments, it complements existing distribution gear and supports future metering strategies.
Product Information
Extended Description
1MM320RRLBC Eaton: Eaton resi meter stack, Multiple metering, 200A, Cu, Bus: 800A, Horn bypass, NEMA 3R, Depends on selected main circuit breaker, Four-jaw, 3, Single-phase in/single-phase out, CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM, CVH2_XMM, Ringless, 120/240V
Product Name
Eaton residential meter stack
Catalog Number
1MM320RRLBC
UPC
782114989906
Product Length/Depth
13.5 in
Product Height
52.35 in
Product Width
7.01 in
Product Weight
63 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
Amperage Rating
200A
Bus material
Copper
Bus Rating
600 A
Bypass
Horn
Number of jaws
Four-jaw
Number of sockets
3
Phase
Single-phase in, single-phase out
Security
Ring
Voltage rating
120/240 V
Enclosure
NEMA 3R
Interrupt rating
Depends on selected main circuit breaker
Secondary circuit breaker
CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM, CVH2_XMM
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 1MM320RRLBC
Feature: Multiple metering capability with 200 A service and a 600 A bus rating. Business Impact: Enables precise submetering across tenants while accommodating future expansion, reducing rework and external metering adapters. Application: Multi-tenant residential buildings and small commercial properties seeking scalable energy visibility. Feature: Four-jaw, ringless sockets with horn bypass. Business Impact: Streamlines installation and maintenance, minimizes wiring errors, and enhances fault isolation. Application: Fast field upgrades and reliable service restoration in busy utility corridors. Feature: Single-phase in/out and 120/240 V operation. Business Impact: Simplifies integration with standard residential service equipment, reducing panel clutter and upgrade costs. Application: Typical apartment buildings and mixed-use developments. Feature: NEMA 3R enclosure and UL Listed certification. Business Impact: Provides weather resistance and regulatory compliance for outdoor or exposed installations. Application: Outdoor meter stacks and exposed indoor locations. Feature: Compatibility with CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM, CVH2_XMM secondary breakers. Business Impact: Enables coordinated protection and flexible metering schemas without replacing existing breakers. Application: Integrated energy management within Eaton’s metering family. Additional: Dimensions 13.5 in depth, 7.01 in width, 52.35 in height; Weight 63 lb. Business Impact: Predictable footprint, easier site planning, and manageable installation payloads. Application: Site design for multi-tenant or light commercial projects.
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FAQs
The 1MM320RRLBC uses a four-jaw, ringless socket design and single-phase in/out with 120/240 V operation, compatible with standard residential service gear. It supports a 200 A service and a 600 A bus, and its horn bypass facilitates service continuity during metering updates. Ensure the main circuit breaker rating matches project requirements and confirm enclosure placement meets NEMA 3R outdoor or indoor conditions.
Key specs include 200 A Amperage Rating, copper Bus Material, 600 A Bus Rating, Four-jaw configuration, and 120/240 V voltage. The Interrupt Rating depends on the main circuit breaker installed. The combination supports reliable submetering, scalable capacity for future tenants, and compatibility with secondary breakers CCV2_X, CCVH2_X, CVS2_XMM, CV2_XMM, and CVH2_XMM for coordinated protection.
Yes. Designed for multi-point metering in a single enclosure, it suits multi-tenant residential buildings and light commercial developments. Its 200 A service, copper bus, NEMA 3R enclosure, and UL Listed certification provide reliable, code-compliant operation, whileĺ…Ľ supporting straightforward upgrades and clear energy visibility for tenants and building managers.
The Eaton 1MM320RRLBC is UL Listed, and housed in a NEMA 3R enclosure, which offers weather resistance suitable for outdoor or exposed installations. The combination of these certifications ensures regulatory compliance, safety, and durability in varied environments, supporting reliable metering across multiple tenants.
The product is covered under Eaton’s warranty policy 25-000: one year from the date of installation or eighteen months from shipment, whichever occurs first. This warranty addresses manufacturing and material defects and is complemented by Eaton's technical support and available specification sheets to aid installation and ongoing maintenance.