Eaton U4042MC Meter Breakers UL
Part Number: U4042MC
Quick Summary
Eaton U4042MC meter breakers protect commercial and industrial metering circuits with reliable, UL-listed performance. In tight electrical rooms, space limitations and durability demands can complicate installs and increase downtime. This unit is UL-listed and EUSERC approved, with ANSI 61 gray paint and a mill-galvanized finish to resist corrosion in harsh environments. Designed for 1Ø/3W service and surface mounting, it integrates with the Eaton B-Line family for scalable, code-compliant metering installations that support long-term service life and reduced maintenance.
Product Information
Extended Description
U4042MC Eaton: Eaton B-Line series meter breakers, 320 A, Studs, 4 jaws, Ring, 3R, Mill-galvanized, ANSI 61 gray paint,10 kAIC, Galvanized steel, Surface mount, Number of wires 1Ø/3W
Product Name
Eaton B-Line series meter breakers
Catalog Number
U4042MC
UPC
782051815153
Product Length/Depth
6 in
Product Height
38 in
Product Width
24 in
Product Weight
100 lb
Compliances
EUSERC Approved
Certifications
UL
Amperage rating
320 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 - U4042MC
320 A amperage rating with a 10 kAIC interrupt rating provides robust fault protection for utility-grade service connections, enabling safer, more reliable metering in commercial facilities. This translates to lower risk of damage during transient faults and improved uptime for critical processes. The galvanized steel construction finished with ANSI 61 gray paint delivers excellent corrosion resistance, extending service life in humid or industrial environments and reducing repainting costs over time. At a compact 6 in depth, 24 in width, and 38 in height with a 100 lb weight, the unit remains manageable to install in standard meter rooms and on-wall configurations, while the surface-mount capability speeds up commissioning and reduces field labor. The 1Ø/3W configuration and compatibility with Studs, 4 jaws, Ring, and 3R enclosures simplify termination and alignment with existing meter sockets and group metering setups. UL listing and EUSERC approval address utility acceptance and compliance requirements, helping streamline procurement and site approvals. This product is designed to work with the Eaton B-Line family for seamless integration and future-proofed upgrades, while the downloadable catalogs and datasheets (continuous rating meter socket jaws, ring vs ringless meters, and the U4042MC specification sheet) support accurate planning and minimal field rework.
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FAQs
Install the U4042MC in a standard meter mounting enclosure using the surface-mount capability. Utilize the 6 in depth, 24 in width, and 38 in height footprint, with 100 lb weight for ballast. Terminations use studs, 4 jaws, and ring connectors to secure conductors, aligning with UL requirements and EUSERC-approved practices.
Yes. The unit is designed for meter socket integration with 1Ø/3W service and supports multiple termination methods including ring and ringless configurations. Compatibility with the Eaton B-Line series simplifies upgrades and group metering installations while maintaining a robust 320 A rating and 10 kAIC interrupt rating.
The U4042MC is UL-listed and EUSERC approved, ensuring compliance with national safety standards and utility interconnection requirements. These certifications facilitate utility acceptance, reduce project risk, and support code-compliant metering installations in commercial and industrial environments.
The galvanized steel construction, finished with ANSI 61 gray paint, provides superior corrosion resistance in challenging environments. This reduces maintenance needs, extends service life, and preserves a clean exterior, which is especially important in outdoor or damp meter rooms.
The combination of a high 320 A rating, 10 kAIC interrupt capability, UL/EUSERC certification, and a durable finish reduces field failures and maintenance cycles. Quick installation via surface mounting and compatible termination methods lowers labor costs and accelerates project timelines, delivering measurable lifecycle savings.