Eaton 227 MTB/150A Meter Breakers - 10 kAIC UL Listed
Part Number: 227 MTB/150A
Quick Summary
Eaton 227 MTB/150A meter breakers provide reliable, factory-protected metering for commercial and industrial panels. Engineers often confront meter socket mismatches and the risk of under-rated interrupt protection during upgrades; this unit addresses both by delivering a robust 150 A rating with a 10 kAIC interrupt. UL listed and EUSERC approved, it aligns with North American code requirements while maintaining the rugged B-Line construction. Designed for surface-mount installations, the galvanized steel finish and ANSI 61 gray coating resist corrosion in demanding environments. The product's compatibility with ring and ringless metering, 3Ø/4W configurations, and large-conductor lugs supports quick, reliable retrofits.
Product Information
Extended Description
227 MTB/150A Eaton: Eaton B-Line series meter breakers, 150 A, Test block, #6-250 MCM, 7 jaws, 1 Position, Ring, 3R, Finish-Z3614, 10 kAIC, MCB, Galvanized steel, Surface mount, Number of wires 3Ø/4W
Product Name
Eaton B-Line series meter breakers
Catalog Number
227 MTB/150A
UPC
782051590968
Product Length/Depth
6 in
Product Height
48 in
Product Width
14 in
Product Weight
58 lb
Compliances
EUSERC Approved
Certifications
UL
Amperage rating
150 A
Interrupt rating
10 kAIC
Material
Galvanized steel
Finish
ANSI 61 gray paint Mill-galvanized
Feature: 150 A amperage rating with a 10 kAIC interrupt rating → Business Impact: Provides strong fault protection for critical loads, reducing downtime and potential equipment damage in commercial and industrial panels. Application: Ideal for factory feeders and large commercial installations where reliable interruption is essential. Feature: UL listing and EUSERC approval → Business Impact: Ensures code compliance and simplifies utility interconnections across North American installations. Application: Required for metering systems in regulated environments and panel shops that demand vetted protection. Feature: Galvanized steel construction with ANSI 61 gray finish → Business Impact: Improves corrosion resistance and long-term reliability in harsh environments. Application: Surface-mount metering installations in factories, warehouses, and outdoor enclosures. Feature: Ring vs ringless metering compatibility with test block and #6-250 MCM lugs → Business Impact: Delivers installation flexibility and faster retrofit timelines while reducing inventory needs. Application: Meter sockets and service disconnects needing adaptable metering configurations. Feature: 6 in depth, 14 in width, 48 in height, 58 lb weight → Business Impact: Predictable footprint and manageable handling for planning and on-site mounting. Application: Wall or panel mounting in constrained spaces. Feature: Heavy-conductor readiness for #6-250 MCM lugs and test block → Business Impact: Enables high-capacity terminations with safer, faster wiring connections. Application: Industrial feeders and large-service installations.
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FAQs
The 227 MTB/150A is designed for ring and ringless metering configurations in 3Ø/4W systems. It supports #6-250 MCM conductors and a test block, enabling straightforward retrofits or new installations in commercial and industrial panels while maintaining compliance with UL and EUSERC requirements.
Verify the amperage rating of 150 A and the interrupt rating of 10 kAIC to ensure it matches system fault levels. Confirm UL listing and EUSERC approval for code compliance, and check conductor sizes up to #6-250 MCM to ensure proper termination and safe operation within a 3Ø/4W configuration.
Yes. The 227 MTB/150A is UL listed and EUSERC approved, which supports compliance for utility-driven and field-installed metering solutions in North American panels. This combination simplifies procurement and reduces integration risk in regulated installations.
Upgrading to a 150 A, 10 kAIC meter breaker reduces downtime risk during faults, improves protection for high‑demand loads, and can lower total cost of ownership through longer service life from galvanized steel construction and a durable ANSI 61 gray finish. The unit’s compatibility with retrofit metering configurations also minimizes field labor and inventory costs.
Consult Eaton's official resources, including the Eaton Specification Sheet for 227 MTB/150A and the ring-versus-ringless metering PDFs. These documents provide installation steps, lug sizing, compliance notes, and wiring examples to support accurate selection and safe field installations.