Eaton CHF240CS Circuit Breaker - UL 489, 2-Pole
Part Number: CHF240CS
Quick Summary
The Eaton CHF240CS is a thermal magnetic circuit breaker designed to protect residential and light commercial electrical panels. Field technicians often struggle with nuisance trips and crowded spaces inside load centers, complicating maintenance and upgrades. This CHF device is UL 489 listed and HACR rated, with 120/240V operation and a two-pole common-trip design for coordinated protection. By pairing with Type CH Loadcenters and the clamshell packaging, technicians gain faster swaps, easier stocking, and consistent protection across circuits. This translates to reduced downtime, safer installations, and clearer indication of circuit status in demanding facilities. Designed for 40 A circuits and a 10 kAIC interrupt rating, it aligns with modern panel requirements.
Product Information
Extended Description
CHF240CS Eaton: Eaton CH thermal magnetic circuit breaker,Type CHF 3/4-Inch standard circuit breaker clamshell pack,Clamshell pack,40 A,10 kAIC,Two-pole,120/240V,CHF,Trip flag, common breaker trip,#10-1/0 AWG Cu/Al,Q30,CHF,Type CH Loadcenters
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHF240CS
UPC
786685532288
Product Length/Depth
6 in
Product Height
2 in
Product Width
4 in
Product Weight
0.6 lb
Warranty
Limited lifetime residential, 1 year commercial
Compliances
HACR Rated
Certifications
UL 489
Catalog Notes
HACR Rated. Two-Pole 120/240V Common Trip Requires Two 3/4-Inch Spaces. With Trip Indication
Used with
Type CH Loadcenters
Type
Type CHF 3/4-Inch standard circuit breaker clamshell pack
Special features
Clamshell pack
Amperage Rating
40 A
Voltage rating
120/240 V
Trip Type
Trip flag
Circuit breaker type
CHF
Interrupt rating
10 kAIC
Main circuit breaker
CHF
Wire size
#10-1/0 AWG Cu/Al
Number of poles
Two-pole
Quantity
30
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - CHF240CS
Eaton type CH circuit breaker limited warranty June 2024
Feature: Two-pole CHF design with common trip ensures both poles trip together, eliminating mismatched protection and reducing backfeed risk. Business Impact: Coordination minimizes nuisance trips caused by unbalanced loads and provides safer panel operation. Application: Ideal for Type CH Loadcenters in residential or light commercial settings where space and reliability matter. Feature: 40 A rating and 120/240 V operation support typical circuits and dual-voltage panels, enabling flexible use across feeders and branch circuits. Application: Common residential and small commercial panels. Feature: 10 kAIC interrupt rating withstands higher fault currents, improving safety margins in main distribution and subpanels. Application: Environments with elevated fault potential. Feature: UL 489 certification and HACR rating ensure regulatory compliance and safe operation with HVAC and motor loads. Application: HVAC equipment and similar loads in light commercial installations. Feature: Clamshell packaging and trip indication simplify stocking and maintenance, reducing handling damage and enabling quick visual status checks. Application: Distributor and field service workflows requiring rapid replacements. Feature: Wire size compatibility #10-1/0 AWG Cu/Al provides broad wiring compatibility with standard CH Loadcenters. Application: General purpose branch circuit wiring in residential and light commercial panels.
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FAQs
The CHF240CS is designed for Type CH Loadcenters and shares the common-trip, two-pole protection architecture used in CH panels. It accepts conductors rated #10-1/0 AWG Cu/Al and fits standard 3/4-inch spaces as a two-pole device, enabling straightforward swaps in existing installations.
CHF240CS provides 40 A amperage, 120/240 V voltage rating, and a 10 kAIC interrupt rating. It is UL 489 listed and HACR rated, which ensures suitability for HVAC and similar motor loads in both residential and light commercial applications.
Yes. The device is optimized for residential panels and light commercial load centers, delivering reliable circuit protection for everyday branch circuits and HVAC-related feeders while meeting regulatory requirements for both environments.
CHF240CS carries UL 489 certification and HACR rating. UL 489 is the standard for low-voltage molded-case circuit breakers, ensuring safety and interoperability, while HACR rating confirms suitability for HVAC equipment, motors, and related loads, helping ensure compliance during inspections.
Clamshell packaging simplifies handling and stock management by protecting the breaker during shipping and storage. The built-in trip indication (trip flag) provides immediate visual status, accelerating diagnostic checks, reducing downtime, and enabling faster, more accurate replacements in field service scenarios.