Eaton U404430MC Meter Breakers - UL Listed
Part Number: U404430MC
Quick Summary
Eaton B-Line series meter breakers provide rugged, code-compliant metering solutions for commercial and industrial panels. Tackling metering integration often stalls projects because jaw configurations, mounting options, and space requirements vary across installations. These units are UL listed and EUSERC approved, reinforcing regulatory compliance, while the galvanized steel housing resists damage in demanding environments. With surface-mount capability and 1Ø/3W functionality, they enable efficient, scalable metering in compact enclosures, reducing wiring complexity and field time. For engineers and procurement teams, this translates to predictable performance, better lifecycle costs, and smoother integration into B-Line systems using compatible meters and rings. The product supports high-availability power distribution, with 320 A capacity and 22 kAIC interrupt rating. Its compatibility with standard grounding and mounting hardware helps ensure a fast, reliable deployment.
Product Information
Extended Description
U404430MC Eaton: Eaton B-Line series meter breakers, 320A, None, Studs, # 6-250 MCM, Material-Galvanized steel, Surface mount, 1Ø/3W, 4 jaws, 1 Position, Ring, Z3614
Product Name
Eaton B-Line series meter breakers
Catalog Number
U404430MC
UPC
782051772302
Product Length/Depth
6 in
Product Height
47 in
Product Width
34 in
Product Weight
165 lb
Compliances
EUSERC Approved
Certifications
UL
Amperage rating
320 A
Interrupt rating
22 kAIC
Material
Galvanized steel
Finish
ANSI 61 gray paint Mill-galvanized
Feature: 320 A amperage rating with a 22 kAIC interrupt rating. Business Impact: Delivers high-capacity protection for demanding feeders, reducing fault-related downtime and improving system reliability. Application: Ideal for mid- to high-load commercial and light-industrial distribution panels where metering accuracy and protection matter. Feature: 1Ø/3W configuration with four jaws and a ring option. Business Impact: Provides flexible metering connections and simplifies field wiring, cutting install time. Application: Suitable for meter mounting in B-Line enclosures and compact utility panels. Feature: Galvanized steel construction with ANSI 61 gray finish. Business Impact: Delivers corrosion resistance and long-term durability in harsh environments. Application: Best for outdoor, damp, or highly conditioned spaces inside electrical rooms. Feature: Surface mount with a single position and 6-250 MCM studs. Business Impact: Space-efficient installation and wide conductor compatibility, reducing enclosure footprint and material cost. Application: Meter sockets and group metering setups in new builds and refurbishments. Feature: UL certified and EUSERC approved. Business Impact: Ensures regulatory compliance and utility program acceptance, smoothing procurement and acceptance testing. Application: Widely adopted in utility-ready metering and distribution installations. Feature: Dimensions and weight (47 in height x 34 in width x 6 in depth; 165 lb). Business Impact: Clear spatial planning and mounting feasibility for standard electrical rooms and meter rooms. Application: Planning stages, enclosure specification and rack-fit verification. Feature: Ring jaw mounting compatibility and metering documentation alignment. Business Impact: Reduces design risk with proven jaw configurations and documented metering approaches. Application: Meter mounting product lines in documentation and installer training.
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FAQs
The U404430MC supports surface mounting for 1Ø/3W service with four jaws and a ring jaw option, plus connection to conductors via 6-250 MCM studs. This enables flexible metering connections in B-Line enclosures and simplifies retrofit projects by accommodating multiple wiring configurations.
Yes, the U404430MC is UL listed and also carries EUSERC approval. This combination ensures regulatory compliance for utility-connected metering installations and facilitates procurement and acceptance testing in regulated markets.
It is designed for meter mounting in B-Line series enclosures, supporting group metering and commercial/industrial distribution panels. Its 320 A rating and 22 kAIC interrupt capacity make it suitable for feeder protection and metering in demanding power distribution environments.
Key specs include a 320 A amperage rating and a 22 kAIC interrupt rating, along with a 1Ø/3W configuration. The unit also accommodates #6–250 MCM conductors, offering robust protection for mid-to-high-load applications in low-voltage systems.
With a galvanized steel body finished in ANSI 61 gray, surface-mount capability, and a defined footprint (47 in x 34 in x 6 in) weighing 165 lb, the U404430MC fits standard meter rooms and B-Line systems. This supports predictable installation timelines and straightforward maintenance planning.