Eaton 227 MTB/125A Meter Breakers - UL 10 kAIC
Part Number: 227 MTB/125A
Quick Summary
Eaton 227 MTB/125A meter breakers provide reliable overload protection for electrical metering panels in commercial and industrial facilities. This compact, surface-mount solution addresses the annoyance of space constraints and field rework during meter upgrades. The B-Line series is UL listed and EUSERC approved, with a 10 kAIC interrupt rating that supports demanding feeder protection. Crafted from galvanized steel with ANSI 61 gray finish, these breakers resist corrosion while simplifying installation. When paired with compatible test blocks and meter sockets, they streamline commissioning and improve first-time right outcomes. Ideal for 3Ø/4W configurations, #6-250 MCM terminations, and 1-position mounting, they deliver dependable performance with scalable installation options.
Product Information
Extended Description
227 MTB/125A Eaton: Eaton B-Line series meter breakers, 125 A, Test block, #6-250 MCM, MCB, 1 Position, Ring, 3R, Z3614, 10 kAIC, Galvanized steel, Surface mount, Number of wires 3Ø/4W, 7 jaws
Product Name
Eaton B-Line series meter breakers
Catalog Number
227 MTB/125A
UPC
782051590944
Product Length/Depth
6 in
Product Height
48 in
Product Width
14 in
Product Weight
62.5 lb
Compliances
EUSERC Approved
Certifications
UL
Amperage rating
125 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 - 227 MTB/125A
High-performance protection delivers 125 A with a 10 kAIC interrupt rating, reducing fault-related downtime and shielding sensitive equipment. This translates to improved system reliability and lower maintenance costs in critical facilities. The 227 MTB/125A unit is designed for straightforward integration with meter sockets and test blocks, enabling faster commissioning and easier future upgrades, particularly in B-Line series installations. The galvanized steel construction and ANSI 61 gray finish provide robust corrosion resistance in demanding environments, extending service life in data centers, manufacturing floors, and utility buildings. Its surface-mount, 1-position design accommodates space-constrained panels, while 3Ø/4W wiring, #6-250 MCM terminations, and 7 jaws ensure flexible, code-compliant connections. Compatibility with ring-vs-ringless configurations minimizes installation risk and stock variety for procurement teams. This approach addresses common objections about retrofit complexity and long lead times by delivering a proven, field-ready solution.
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FAQs
The 227 MTB/125A meter breaker supports surface mounting in a 1-position configuration and is designed for 3Ø/4W systems. It accommodates ring and 3R enclosures and works with standard test blocks and meter sockets, enabling streamlined commissioning and flexible panel layouts.
It is rated for 125 A with a 10 kAIC interrupt rating, allowing safe interruption of short-circuit currents. The unit supports 6 in depth, 14 in width, and 48 in height framing, with #6-250 MCM terminations and 7 jaws for robust, reliable connections.
Yes. The breaker carries UL certification and is EUSERC approved, meeting stringent utility and code requirements for meter mounting equipment and downstream protection in commercial and industrial applications.
It is designed for meter mounting equipment in commercial and industrial facilities, including data centers and manufacturing environments. Its 3Ø/4W configuration and compatible test blocks simplify integration with meter sockets and B-Line series mounting solutions.
The unit offers durable galvanized steel construction with ANSI 61 gray finish for long life in harsh environments, UL/EUSERC compliance for reduced rework, and ease of installation that lowers labor costs. Its reliable protection minimizes nuisance trips and improves system uptime, contributing to a favorable total cost of ownership.