Eaton CVS3090W Molded Case Circuit Breaker - 42 kAIC
Part Number: CVS3090W
Quick Summary
The Eaton CVS3090W molded case circuit breaker protects three-phase power circuits in commercial and light industrial switchboards. Engineers often face compatibility gaps, undersized interrupt ratings, and wiring challenges within CV frame assemblies. This unit carries CSA Std. C22.2 No. 5 and UL 489 listings, ensuring regulatory compliance and safer panel builds. Its compact CV frame design simplifies installation, reduces panel depth, and supports cost-efficient project execution. With a 90 A rating in a three-pole configuration, it delivers reliable protection for Cu/Al feeders in load centers and similar distribution systems.
Product Information
Extended Description
CVS3090W Eaton: Eaton Type CV Molded Case Circuit Breaker,Molded case circuit breaker,90 A,42 kAIC,Three-pole,#6 - 4/0 Al/Cu,CV,Without terminals
Product Name
Eaton CCV tenant main breaker
Catalog Number
CVS3090W
UPC
786685704111
Product Length/Depth
7.5 in
Product Height
5 in
Product Width
5 in
Product Weight
4.4 lb
Warranty
Limited lifetime
Certifications
CSA Std. C22.2 No. 5 UL 489
Type
Molded case circuit breaker
Amperage Rating
90 A
Circuit breaker frame type
CV
Terminals
Without
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 - CVS3090W
Feature: 90 A amperage rating in a 3-pole CV frame. Business Impact: Provides robust overcurrent protection for mid-sized commercial and light industrial circuits, reducing nuisance trips and safeguarding downstream equipment. Application: Ideal for three-phase load centers with Cu/Al conductors using #6-4/0 AWG wiring. Feature: Interrupt rating of 42 kAIC. Business Impact: Improves fault clearance capability, minimizing arc flash risk and equipment damage under high fault currents. Application: Suitable for panel boards and switchboards in demanding power distribution scenarios. Feature: Without terminals design. Business Impact: Simplifies field wiring by allowing installer-preferred lug assemblies or kit options, reducing installation time in constrained spaces. Application: Common in OEM builds and retrofit projects where terminal configurations are customized. Feature: 7.5 in length, 5 in height, 5 in width; Weight 4.4 lb. Business Impact: Compact footprint and manageable weight enable easier handling, rail mounting, and minimal panel space consumption. Application: Fits standard panel enclosures and CV frame assemblies with straightforward mounting. Feature: Certifications include UL 489 and CSA Std. C22.2 No. 5. Business Impact: Ensures regulatory compliance, streamlined audits, and safer panel commissioning. Application: Essential for North American electrical installations and panel approvals. Feature: Limited lifetime warranty. Business Impact: Lowers life-cycle cost by reducing replacement and service expenditures, supporting long-term ownership value. Application: Beneficial for mission-critical applications in manufacturing and distribution facilities.
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FAQs
CVS3090W is a three-pole molded case breaker built on the CV frame, compatible with Cu/Al conductors sized #6-4/0 AWG and installations that require a no-terminal option. It fits standard load centers and CV-series panels, enabling straightforward mounting and field wiring using installer-preferred terminal configurations. Always verify panel clearance and rail spacing prior to installation.
The 42 kAIC interrupt rating indicates the maximum fault current the breaker can interrupt without sustaining damage. This enhances protection for downstream equipment by reliably interrupting high-energy faults, reducing arc exposure and potential panel or equipment damage. Use this rating as a key spec when selecting devices for panels expected to encounter high fault currents.
CVS3090W supports Cu/Al conductors sized #6-4/0 AWG, but the terminals are listed as Without, meaning field-installed lugs or termination blocks are required. Confirm compatibility with your preferred lug kit and ensure proper torque and conductor preparation. This approach provides flexibility for mixed-metal installations while maintaining safe, code-compliant terminations.
The CVS3090W carries UL 489 and CSA Std. C22.2 No. 5 listings, signaling compliance with major North American electrical standards. These certifications support code acceptance, simplify inspections, and reduce project risk by confirming essential performance and safety criteria are met for panel boards, switchgear, and distribution systems.
With a limited lifetime warranty and a straightforward, rugged design, CVS3090W minimizes maintenance needs and replacement intervals. For ROI, focus on the 90 A rating and 42 kAIC interrupt capability to avoid unplanned downtime, select the CV frame for compatibility with existing panels, and factor in long-term savings from reduced panel rework and robust fault protection.