Eaton U1M1R Meter Breakers - 10 kAIC, UL Listed
Part Number: U1M1R
Quick Summary
Eaton U1M1R meter breakers provide reliable single-meter protection for commercial and light-industrial panels. Engineers often face space constraints and wiring complexity when upgrading service equipment, making compact, field-friendly solutions essential. This unit carries UL Listed and EUSERC Approved certifications, ensuring code-compliant performance, plus a 100 A rating and 10 kAIC interrupt rating for robust fault protection. With a galvanized steel enclosure, ANSI 61 gray finish, and an aluminum bus, the U1M1R delivers a rugged, long-lived solution that fits B-Line series configurations while simplifying installation, serviceability, and maintenance, ultimately reducing labor costs and project risk.
Product Information
Extended Description
U1M1R Eaton: Eaton B-Line series meter breakers, Ring, 3R, ANSI 61 gray paint, 10 kAIC, Galvanized steel, 3, Single meter position, 100 A, Suface, 18, 120/240 V, Single-phase, None, Aluminum Underground, (1) 100 A, 2P, 4
Product Name
Eaton B-Line series meter breakers
Catalog Number
U1M1R
UPC
782051430608
Product Length/Depth
4.625 in
Product Height
24 in
Product Width
14 in
Product Weight
28 lb
Compliances
EUSERC Approved
Certifications
UL
Application
Single meter position
Amperage Rating
100 A
Voltage rating
120/240V
Phase
Single-phase
Interrupt rating
10 kAIC
Main circuit breaker
(1) 100 A, 2P
Bus material
Aluminum
Material
Galvanized steel
Finish
ANSI 61 gray paint
continuous rating meter socket jaws
continuous rating meter socket jaws
Eaton Specification Sheet - U1M1R
Single-meter-position design keeps the enclosure footprint tight, enabling denser power-distribution layouts. This configuration supports a 100 A main, 2P, 120/240 V with a 10 kAIC interrupt rating, delivering reliable fault protection in space-constrained panels. Galvanized steel housing with ANSI 61 gray paint and aluminum bus delivers corrosion resistance and dependable service life. This combination reduces maintenance costs and improves field reliability for Eaton B-Line series installations in harsh environments. UL Listed and EUSERC Approved certifications provide audit-ready compliance and streamline utility approvals. This minimizes project risk and helps secure fast approvals for panel upgrades and new builds. Compact dimensions—14 in wide, 24 in high, 4.625 in deep—and a 28 lb weight simplify shipping, handling, and installation. The unit’s surface-mount design offers straightforward integration with standard mounting rails and meter sockets. Compatibility with single-meter sockets and related meter-mounting accessories ensures smooth integration in a variety of service equipment configurations. For guidance, Eaton provides dedicated datasheets and ring-vs-ringless metering resources that reduce field-configuration pitfalls. Operationally, the U1M1R supports reliable protection for utility-grade service equipment, with predictable lifecycle costs and easy maintenance.
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FAQs
Designed for surface-mount, single-meter systems, the unit measures 14 in wide, 24 in tall, and 4.625 in deep, weighing 28 lb. Plan mounting location and lifting with proper supports, ensure front-access clearance for wiring, and use compatible meter sockets or ring-type accessories per Eaton's documentation to avoid field-fitting issues.
The U1M1R provides a 100 A amperage rating, operates at 120/240 V, is single-phase, and offers a 10 kAIC interrupt rating. The main circuit breaker is (1) 100 A, 2P. The device uses an aluminum bus and a galvanized steel enclosure with ANSI 61 gray finish for robust, utility-grade protection.
The U1M1R is designed for single-meter-position service equipment. For ring vs ringless metering compatibility, consult Eaton’s ring-vs-ringless metering documentation (WP307008EN) to verify jaw and socket arrangements and ensure correct accessory selection for your installation.
The U1M1R is UL Listed and EUSERC Approved, which supports utility-grade acceptance and code compliance in North American installations. These certifications help reduce validation time with inspectors and align with utility service equipment requirements.
The combination of UL/EUSERC-certified build, robust 10 kAIC protection, and durable galvanized steel with an aluminum bus translates to longer service life, fewer field reworks, and lower maintenance labor. Its compact footprint and straightforward installation also reduce commissioning time and enable scalable panel upgrades.