Eaton CVH3225KY3 Molded Case Circuit Breaker - UL 489
Part Number: CVH3225KY3
Quick Summary
CVH3225KY3 is a molded case circuit breaker that protects electrical distribution in industrial panels, delivering reliable, fast-acting overcurrent protection. Engineers confront nuisance trips, arc flash risk, and space constraints when upgrading switchgear, making a compact, high-availability device essential. Certified to UL 489 and CSA Std. C22.2 No. 5, the CVH3225KY3 also aligns with regulatory requirements for North American installations. With a 225 A rating, three poles, and a CV frame, it supports #6-4/0 Cu/Al conductors and a maximum line of #300 kcmil, simplifying wiring. The option to add a terminal shield for large conductors adds 1.50 inches in length, while a limited lifetime warranty reinforces long-term value.
Product Information
Extended Description
CVH3225KY3 Eaton: Eaton Type CV Molded Case Circuit Switch,Molded case circuit breaker,225 A,Three-pole,#6 - 4/0 Al/Cu,CV,#300 kcmil maximum line
Product Name
Eaton CCV tenant main breaker
Catalog Number
CVH3225KY3
UPC
786685759364
Product Length/Depth
11.7 in
Product Height
6.2 in
Product Width
6.3 in
Product Weight
5.5 lb
Warranty
Limited lifetime
Certifications
UL 489 CSA Std. C22.2 No. 5
Catalog Notes
#300 kcmil options use a terminal shield and add 1.50 inches (38.1 mm) to the length of the breaker
Type
Molded case circuit breaker
Amperage Rating
225 A
Circuit breaker frame type
CV
Terminals
#300 kcmil maximum line
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 - CVH3225KY3
Feature: 225 A, three-pole design with the CV frame delivers dependable main protection for demanding load centers. Business impact: It provides robust overload and short-circuit protection while preserving selectivity, reducing downtime in manufacturing operations. Application: Suitable for industrial panels and motor control centers where reliable protection is essential. Feature: Terminals rated for #6-4/0 AWG Cu/Al with a maximum line of #300 kcmil and the option for a terminal shield. Business impact: Enables flexible wiring, supports future capacity upgrades, and simplifies field installation while maintaining secure connections. Application: Useful in feeders and main-branch connections in compact or retrofit installations. Feature: UL 489 and CSA Std C22.2 No. 5 certifications plus a limited lifetime warranty. Business impact: Ensures compliance with national standards and reduces lifecycle cost through warranty coverage. Application: Procurement and compliance documentation for North American facilities; preferred for regulated environments. Feature: Compact dimensions 11.7 in length, 6.2 in height, 6.3 in width; weight 5.5 lb. Business impact: Fits tight panel envelopes and simplifies rack mounting, speeding installation and reducing space-related costs. Application: Space-constrained panels, retrofit projects, and compact load centers. Feature: Catalog notes indicate 300 kcmil option length increase of 1.50 in with a terminal shield. Business impact: Plan layout and ordering accurately, avoiding field fit issues and minimizing on-site rework. Application: Panel design, engineering planning, and procurement for large-conductor applications.
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FAQs
Installation requires confirming a three-pole CV frame MCCB with 225 A rating fits the panel bus and connectors. Use copper or aluminum conductors up to #6-4/0 AWG and observe torque specs on the terminal lugs. If upgrading from a smaller unit, verify clearances and bus standoff to preserve proper trip time and coordination. For large conductors, consider the terminal shield which adds 1.50 in length to the unit.
CVH3225KY3 is a three-pole molded case circuit breaker with a 225 A rating and a CV frame. It accepts #6-4/0 AWG Cu/Al conductors and allows a maximum line size of #300 kcmil. It is certified to UL 489 and CSA Std C22.2 No. 5, with a lightweight profile of 11.7 in length, 6.2 in height, and 6.3 in width, weighing 5.5 lb.
Yes. With a three-pole design and 225 A protection, CVH3225KY3 is well suited for distribution panels, load centers, and motor control centers that require reliable main protection. Its Cu/Al termination options and CV frame support straightforward integration into standard panel layouts and offer consistent trip performance under motor starting transients.
CVH3225KY3 carries UL 489 and CSA Std C22.2 No. 5 certifications, confirming compliance with North American electrical safety standards. This matters for regulatory approvals, procurement documentation, and ensuring consistent safety practices across facilities that rely on certified protective devices in critical electrical infrastructure.
The device carries a limited lifetime warranty, reducing long-term maintenance concerns and replacement costs. For lifecycle value, plan for standard inspections, verify torque at terminations, and track trip settings. The unit's robust construction and standard mounting simplify retrofits and minimize downtime during panel upgrades, supporting predictable maintenance budgeting.