Eaton meter breakers 225 MTBH MS45 - UL 22 kAIC
Part Number: 225 MTBH MS45
Quick Summary
Eaton meter breakers 225 MTBH MS45 safeguard utility meters and zone distribution in commercial electrical panels. When upgrading metering protection, installers often face compatibility gaps, limited mounting options, and time-consuming field verification. This unit is UL listed and EUSERC approved, with a 22 kAIC interrupt rating and a 200 A capacity to support typical service feeders while maintaining safe operation. Built for the Eaton B-Line series, these meters offer easy integration with 6 in depth, 14 in width, and 48 in height footprints, simplifying retrofit projects and new installations alike. The combination of robust steel construction with ANSI 61 gray finish delivers durable protection in demanding environments and supports efficient maintenance planning.
Product Information
Extended Description
225 MTBH MS45 Eaton: Eaton B-Line series meter breakers, 200 A, #6-250 MCM, MCB, 1 Position, Ring, 3R, 5 jaws, Z3614, 22 kAIC, Steel, Surface mount, Test block, 1Ø/3W
Product Name
Eaton B-Line series meter breakers
Catalog Number
225 MTBH MS45
UPC
782051590890
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
continuous rating meter socket jaws
continuous rating meter socket jaws
Eaton Specification Sheet - 225 MTBH MS45
Feature: 200 A amperage rating and a 22 kAIC interrupt rating provide robust protection for feeder circuits, reducing fault-related downtime and downstream equipment damage. This rating supports higher short-circuit fault tolerance in commercial and industrial metering configurations, enabling safer utility feeds and longer service life for downstream transformers and switches. In practice, engineers specify the MTBH MS45 for meter-and-breaker assemblies that must withstand utility fault currents while meeting space and mounting constraints. Business impact includes improved reliability, reduced upstream protection upgrades, and easier regulatory compliance across new installations.
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FAQs
The 225 MTBH MS45 is designed for Eaton B-Line meter mounting configurations and meter socket installations. It supports 1Ø/3W service scenarios and a 3R enclosure, with a 6 in depth, 14 in width, and 48 in height footprint that aligns with standard commercial/industrial meter rooms. It accepts #6-250 MCM conductors via its 5-jaw, ring connection arrangement.
Key specs include a 200 A amperage rating and a 22 kAIC interrupt rating, enabling safe interruption of high fault currents. It is a 1Ø/3W meter breaker with a 3R enclosure, surface-mount capability, and a 6 in depth by 14 in width by 48 in height footprint. The unit weighs approximately 56 lb and uses steel construction with ANSI 61 gray finish.
Yes. The MTBH MS45 is UL listed, ensuring compliance with safety standards for electrical protection devices. It is also EUSERC approved, supporting utility meter installations and metering equipment in accordance with utility procurement and permitting requirements.
The design includes a built-in test block, 1 position, and 5 jaws for secure terminations to #6-250 MCM conductors, which reduces field wiring errors and speeds commissioning. Surface-mount capability and a 3R enclosure simplify mounting in dense equipment rooms, enabling faster installations and more predictable maintenance schedules.
You can access Eaton’s continuous rating meter socket jaw catalogs, the ring-vs-ringless metering guide, and the Eaton Specification Sheet for 225 MTBH MS45. These documents provide installation instructions, accessory compatibility, and performance data to assist procurement and field engineering.