Eaton U227 MTB Meter Breakers - UL Listed, 10 kAIC
Part Number: U227 MTB
Quick Summary
Eaton U227 MTB meter breakers protect electrical meters and distribution panels in commercial and industrial facilities. This solution addresses field installation challenges such as misalignment, slow testing, and limited fault-current handling by delivering reliable protection in a compact, surface-mount package. The units carry UL certification and EUSERC approval, with a robust 200 A rating and a 10 kAIC interrupt capability, reinforced by galvanized steel construction and ANSI 61 gray finish. Designed for B-Line series meter mounting, these breakers provide long-term durability while helping simplify maintenance, installation planning, and regulatory compliance. By combining strong protection with practical installation features, they support safer, more efficient power distribution and reduced total cost of ownership.
Product Information
Extended Description
U227 MTB Eaton: Eaton B-Line series meter breakers, 200 A, Test block, #6-250 MCM, MCB, 7 jaws, 1 Position, 10 kAIC, Galvanized steel, Surface mount, 3Ø/4W, Ring, 3R, Z3614
Product Name
Eaton B-Line series meter breakers
Catalog Number
U227 MTB
UPC
782051591552
Product Length/Depth
6 in
Product Height
30 in
Product Width
22 in
Product Weight
67 lb
Compliances
EUSERC Approved
Certifications
UL
Amperage rating
200 A
Interrupt rating
10 kAIC
Material
Galvanized steel
Finish
ANSI 61 gray paint Mill-galvanized
continuous rating meter socket jaws
continuous rating meter socket jaws
Eaton Specification Sheet - U227 MTB
Feature → Business Impact → Application: The 200 A amperage rating supports high-demand service feeds without needing multiple devices, reducing panel footprint and wiring complexity in commercial buildings and light-industrial facilities. This translates to faster installation, lower labor costs, and improved panel density in constrained spaces. Feature → Business Impact → Application: A 10 kAIC interrupt rating provides superior fault-current protection, improving safety and minimizing equipment damage during short-circuit events in industrial mains and commercial feeders. Feature → Business Impact → Application: Galvanized steel with ANSI 61 gray paint delivers corrosion resistance and a durable finish for long service life in surface-mounted meters, ideal for indoor or protected environments in data centers and manufacturing floors. Feature → Business Impact → Application: 3Ø/4W configuration with 7 jaws and a 1-position ring system ensures quick, reliable mounting and conductor termination for complex three-phase layouts common in modern power distribution. Feature → Business Impact → Application: The included test block accelerates preventive maintenance and testing, reducing downtime during commissioning and routine checks in utility and building management applications. Feature → Business Impact → Application: The compact 6 in depth, 22 in width, and 30 in height footprint combined with 67 lb weight support sturdy, field-ready installation in B-Line meter assemblies, speeding up onboarding and integration with existing low-voltage distribution frameworks.
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FAQs
The U227 MTB is designed for surface-mount installation in B-Line meter assemblies. It supports 3Ø/4W configurations with up to #6-250 MCM conductors and uses a 7-jaw, 1-position ring design for secure termination. Ensure proper alignment with the meter socket and connect conductors per the panel manufacturer's installation instructions to maintain UL and EUSERC compliance.
Key specs include a 200 A amperage rating and a 10 kAIC interrupt rating, UL listing, and EUSERC approval. These ratings indicate strong fault-current protection for medium-scale commercial or light-industrial metering applications, helping to minimize damage and downtime during short circuits.
The unit features galvanized steel construction with ANSI 61 gray finish, offering corrosion resistance suitable for indoor or protected environments. For outdoor exposure or harsh conditions, verify enclosure protection and installation practices per your facility’s environmental and local code requirements.
The U227 MTB carries UL certification and EUSERC approval, aligning with United States electrical safety standards and utility metering requirements. Its 3Ø/4W configuration and rugged build further support compliance in common commercial and industrial metering installations.
A test block included with the unit simplifies commissioning and routine testing, reducing downtime. The durable galvanized steel housing and high interrupt rating lower the risk of equipment damage, contributing to longer service life and lower replacement costs, delivering measurable total cost of ownership benefits for facilities with high metering demand.