Eaton U4042MCC Meter Breakers - UL Listed
Part Number: U4042MCC
Quick Summary
Eaton U4042MCC meter breakers deliver reliable protection for commercial and light industrial panels. Engineers often struggle with mounting constraints, metering accuracy, and code compliance in compact distribution setups. UL-listed and EUSERC approved, with ANSI 61 gray paint finish and galvanized steel construction, these breakers meet utility and building requirements while withstanding harsh environments. The unit also integrates smoothly with Eaton's B-Line series metering solutions, delivering practical value for procurement teams and technicians seeking durable, compliant protection in a compact footprint. Its surface-mount design simplifies installation and service in demanding panel layouts.
Product Information
Extended Description
U4042MCC 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, Manual circuit closing
Product Name
Eaton B-Line series meter breakers
Catalog Number
U4042MCC
UPC
782051815177
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
320 A amperage rating delivers the load capacity required for modern commercial and light-industrial feeds, enabling safer, more predictable distribution without oversizing protective devices. This means lower operational risk during peak demand and improved protection coordination across feeders, ultimately reducing nuisance trips and downtime in busy switchgear rooms. 10 kAIC interrupt rating provides robust fault current protection for typical utility faults, helping you meet stringent safety and reliability targets while preserving downstream equipment. The galvanized steel enclosure with ANSI 61 gray paint offers superior corrosion resistance and high-visibility identification, improving maintenance planning and field auditing in challenging environments. The combination of 4 jaws, ring terminals, and ring-style connections on a 1Ø/3W circuit supports dependable, low- resistance terminations and simplified meets-in-meter installations. Surface mounting and a 3R enclosure enable fast, space-efficient installations in constrained panels, reducing labor time and disturbance to adjacent circuits. The unit’s dimensions (6 in depth, 24 in width, 38 in height) and 100 lb weight facilitate secure handling and stable mounting in rack-and-rail or wall-mounted configurations, while the 320 A rating aligns with common feeder sizes for metering applications. Compatibility with Ring vs Ringless metering configurations provides installation flexibility to match site requirements and utility preferences. Built-in manual circuit closing supports field testing and commissioning without extra equipment, improving commissioning timelines and reducing project risk. Overall, these features translate into measurable benefits: improved efficiency, compliance assurance, and reduced total cost of ownership for meter-focused electrical protection strategies.
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FAQs
U4042MCC is designed for integration with Eaton’s B-Line meter mounting family. It supports 1Ø/3W configurations and features surface-mount installation with a 3R enclosure, simplifying mounting in compact distribution panels. The 6 inch depth and 24 by 38 inch footprint help align with standard meter socket layouts, reducing field modification needs and enabling quicker commissioning.
The unit provides a 320 A amperage rating with a 10 kAIC interrupt rating, enabling strong fault-current protection for feeder circuits. It is UL listed and designed for durable service in commercial and light-industrial environments. Its ring and jaw connection system supports secure terminations, while its galvanized steel construction ensures long-term reliability under typical maintenance cycles.
Yes. U4042MCC carries EUSERC approval and UL listing, aligning with utility interfaces and local code requirements. This makes it a reliable choice for projects where metering and protection coordination must satisfy utility company standards, inspections, and commissioning procedures without compromising on performance or safety.
U4042MCC is UL-listed and finished in ANSI 61 gray paint on galvanized steel, with 3R enclosure protection. The finish provides corrosion resistance and high visibility for field inspections. These certifications and coating choices help ensure compliance with industry standards while supporting durable operation in exposed or harsh environments.
The combination of 320 A protection, 10 kAIC rating, and surface-mount 3R enclosure facilitates faster installation and easier service access, reducing labor costs during commissioning and maintenance. Galvanized steel and ANSI 61 finish minimize corrosion-related maintenance, extending service life. Overall, these features support lower lifecycle costs and improved system reliability for meter-focused protection strategies.