Eaton U1M1R F Meter Breaker - UL Listed, 10 kAIC
Part Number: U1M1R F
Quick Summary
U1M1R F meter breaker provides reliable single-meter protection for residential and light commercial power distribution. Many projects struggle with space constraints and retrofits in existing panels, but this unit offers a compact footprint and straightforward installation. UL-listed and EUSERC-approved to meet utility-grade standards, it also features a rugged galvanized steel enclosure for durable outdoor and underground service conditions. Designed for B-Line series meter mounting and a single-meter position, it reduces field labor and simplifies maintenance, delivering predictable performance and long-term cost savings for facilities and control teams.
Product Information
Extended Description
U1M1R F Eaton: Eaton B-Line series meter breakers, Ring, 3R, ANSI 61 gray paint, 10 kAIC, Galvanized steel, 3, Single meter position, 100 A, Flush, 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 F
UPC
782051430707
Product Length/Depth
4.63 in
Product Height
24 in
Product Width
14 in
Product Weight
30 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 F
Feature → Business Impact → Application: The U1M1R F delivers a 10 kAIC interrupt rating, providing robust fault-current protection that minimizes equipment damage and arc-flash risk. This translates to fewer field repairs and lower downtime for service entrances in light commercial and residential facilities. Application: Ideal for service feeders and single-meter distributions in B-Line enclosures, improving reliability and safety. Feature → Business Impact → Application: With a 100 A, 120/240 V single-phase rating, it aligns with common utility service profiles, simplifying procurement and panel planning. Application: Enables quick integration into standard metering setups without bespoke wiring modifications. Feature → Business Impact → Application: The galvanized steel enclosure and ANSI 61 gray finish offer corrosion resistance and a durable exterior. Application: Suitable for underground or exposed installations where long-term enclosure integrity matters. Feature → Business Impact → Application: UL certification and EUSERC approval support utility acceptance and code compliance. Application: Facilitates permit approval and standardized commissioning across sites. Feature → Business Impact → Application: Single main circuit breaker configuration (1) 100 A, 2P reduces hardware count and shortens wiring time. Application: Streamlines installation in single-meter, two-pole protection scenarios.
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FAQs
Plan for a single-meter position with flush mounting in Eaton B-Line series enclosures. Verify enclosure compatibility with a 4.63 in depth and 14 in width, confirm the main breaker is (1) 100 A, 2P, and ensure the aluminum bus connections are used per spec. Follow UL installation guidelines and ensure the enclosure is suitable for indoor, outdoor, or underground service.
The unit is rated 100 A at 120/240 V with a 2P main and a 10 kAIC interrupt rating, designed for single-phase service entrances. This combination simplifies panel design for residential and light commercial loads, reduces mismatches with standard metering equipment, and supports reliable protection for branch circuits fed from a single-meter position.
Yes. The U1M1R F uses galvanized steel with ANSI 61 gray finish and an aluminum bus, providing durability for underground or exposed environments. When deployed in appropriate B-Line enclosures, it supports underground service connections while maintaining protection performance and longevity.
The U1M1R F is UL-listed and EUSERC-approved, supporting utility-grade acceptance and compliance with electrical codes. These certifications facilitate utility interconnections, streamline permitting, and help ensure standardized procurement across multiple sites.
The combination of a durable galvanized enclosure, high interrupt rating, and compact single-meter design reduces maintenance downtime and field labor. Fast installation in standard B-Line configurations shortens project timelines, while UL and EUSERC approvals minimize compliance-related retrofit work and expedite commissioning across facilities.