Eaton CVS3125Y CV Molded Case Breaker - UL 489, 42 kAIC
Part Number: CVS3125Y
Quick Summary
Eaton CVS3125Y CV Molded Case Breaker provides reliable overload protection for industrial control panels and commercial power distribution. Engineers often wrestle with space constraints, complex field wiring, and regulatory pushback when upgrading sleek control enclosures. These devices are built to meet UL 489 and CSA Std. C22.2 No. 5, with a three-pole CV frame that suits demanding distributions. The combination of compact footprint, clear labeling, and robust termination helps reduce panel depth while speeding commissioning. This translates to lower installation costs and longer service life across high-demand facilities.
Product Information
Extended Description
CVS3125Y Eaton: Eaton Type CV Molded Case Circuit Breaker,Molded case circuit breaker,125 A,42 kAIC,Three-pole,#6 - 4/0 Al/Cu,CV,#4/0 kcmil maximum line
Product Name
Eaton CCV tenant main breaker
Catalog Number
CVS3125Y
UPC
786685704456
Product Length/Depth
7.5 in
Product Height
5 in
Product Width
5 in
Product Weight
4.4 lb
Warranty
Limited lifetime
Certifications
UL 489 CSA Std. C22.2 No. 5
Type
Molded case circuit breaker
Amperage Rating
125 A
Circuit breaker frame type
CV
Terminals
#4/0 kcmil maximum line
Interrupt rating
42 kAIC
Wire size
#6-4/0 AWG Cu/Al
Number of poles
Three-pole
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - CVS3125Y
Feature: Compact CV frame and three-pole design. Benefit: Maximizes panel space and simplifies wiring without compromising protection. Application: Control panels in machine-building and heavy equipment where footprint matters. Feature: 125 A rating with a 42 kAIC interrupt capacity. Benefit: Strong fault-current handling reduces equipment damage and downtime. Application: Industrial power distribution and motor control centers in manufacturing lines. Feature: Terminals rated for #6-4/0 AWG Cu/Al with maximum line of #4/0 kcmil. Benefit: Flexible, fast termination reduces installation time and errors. Application: Main feeds and distribution bus connections in upgraded panels. Feature: Certifications UL 489 and CSA Std. C22.2 No. 5. Benefit: Streamlines regulatory approvals and field validation. Application: North American safety compliance for panel builders. Feature: Limited lifetime warranty. Benefit: Lower long-term maintenance costs and asset protection. Application: Critical process environments requiring dependable, long-life protection.
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FAQs
Installation requires mounting the CVS3125Y into a CV frame enclosure, securing with mounting hardware, and wiring to the #6-4/0 AWG Cu/Al conductors. Ensure termination is within the #4/0 kcmil maximum line limit, observe proper torque specifications on lugs, and verify alignment with UL 489 and CSA requirements during commissioning.
CVS3125Y is a 125 A molded case circuit breaker with a 42 kAIC interrupt rating. It is a three-pole device designed for CV frame applications and supports termination of #6-4/0 AWG Cu/Al conductors, with a maximum line of #4/0 kcmil.
Yes. With the 125 A rating and 42 kAIC interrupt capacity, CVS3125Y is well-suited for industrial control panels, motor control centers, and load centers where compact CV-frame protection and reliable trip performance are required.
The CVS3125Y carries UL 489 and CSA Std. C22.2 No. 5 certifications, which verify safety and performance to North American standards. These approvals help streamline approvals with inspectors and ensure compliance in regulated environments.
The device offers a limited lifetime warranty, providing long-term protection and reducing lifecycle maintenance concerns. For mission-critical applications, this translates to lower replacement costs and greater asset availability over time.