Eaton 227 MTBH MS45 Meter Breaker - UL
Part Number: 227 MTBH MS45
Quick Summary
The Eaton 227 MTBH MS45 meter breaker is a high-capacity meter mounting solution for protecting 3Ø/4W electrical distributions in commercial and industrial facilities. It addresses common project challenges such as limited space, compatibility with ring and ringless metering, and lengthy commissioning by delivering a robust steel enclosure with a compact surface-mount design. This unit is UL listed and EUSERC approved, with an ANSI 61 gray finish and mill-galvanized protection that withstands harsh environments. With a 200 A rating and a 22 kAIC interrupt capability, it meets utility-grade protection requirements while maintaining procurement efficiency and lifecycle cost advantages for your B-Line meter mounting installations.
Product Information
Extended Description
227 MTBH MS45 Eaton: Eaton B-Line series meter breakers, 200A, Test block, # 6-250 MCM, MCB, 7 jaws, 1 Position, Ring, 3R, Finish Z3614, 22 kAIC, Steel, Surface mount, 3Ø/4W
Product Name
Eaton B-Line series meter breakers
Catalog Number
227 MTBH MS45
UPC
782051590975
Product Length/Depth
6 in
Product Height
48 in
Product Width
14 in
Product Weight
56 lb
Compliances
EUSERC Approved
Certifications
UL
Amperage rating
200 A
Interrupt rating
22 kAIC
Material
Steel
Finish
ANSI 61 gray paint Mill-galvanized
Feature → Business Impact → Application: The 200 A amperage rating paired with a 22 kAIC interrupt rating provides robust fault protection for heavy-load commercial and industrial feeders, reducing upstream faults and downstream equipment damage in 3Ø/4W systems. This translates to fewer outages and lower maintenance costs in data centers, manufacturing floors, and large offices where reliability is critical. Feature → Business Impact → Application: Ring and ringless metering compatibility with a test block and 7 jaws enables flexible metering configurations and simplifies commissioning, cutting project lead times and minimizing rework in retrofit projects or new builds. Feature → Business Impact → Application: Steel construction with ANSI 61 gray paint and mill-galvanized finish delivers long-term corrosion resistance, reducing repaint and touch-up requirements in damp or industrial environments. Feature → Business Impact → Application: Surface-mount, 3R enclosure design optimizes space utilization in limited panel footprints, making it easier to integrate into existing switchgear layouts and reducing enclosure rack requirements. Feature → Business Impact → Application: Conductors range up to #6-250 MCM supports large feeders and diverse cabling strategies, improving install flexibility for service entrances and distribution panels. Feature → Business Impact → Application:UL listing and EUSERC approval provide regulatory confidence and streamlined procurement, helping with long-lead projects and compliance documentation while standardizing parts across facilities. Feature → Business Impact → Application: The included test block and clear labeling simplify routine testing and maintenance, lowering commissioning risk and accelerating preventive maintenance programs.
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FAQs
The 227 MTBH MS45 is designed for meter mounting with both ring and ringless configurations, featuring a test block and 7 jaws to accommodate multiple metering jaw arrangements. This flexibility minimizes retrofit risk and reduces installation time when switching metering types within commercial or industrial panels.
Key specs include a 200 A amperage rating and a 22 kAIC interrupt rating, suitable for standard service entrances and feeders in 3Ø/4W systems. It supports #6-250 MCM conductors, and its 3R surface-mount enclosure is engineered for durable, high-current applications in challenging environments.
Yes. The unit is UL listed and EUSERC approved, which facilitates regulatory compliance, simplifies documentation for projects, and aligns with utility and code requirements in many commercial and industrial installations.
Plan for a robust mounting surface to support the 56 lb unit in a 3R enclosure, with adequate clearance for cable termination up to #6-250 MCM. Its surface-mount design reduces field assembly steps, but ensure proper venting and environmental protection per site conditions to maintain finish longevity.
The MTBH MS45 consolidates high-current protection with a durable steel build and approved finishes, reducing repainting and corrosion costs. UL/EUSERC approvals simplify procurement and compliance paperwork, while the reliable test block and compatibility with common metering approaches help minimize downtime during maintenance and inspections.