Eaton CHF135CS Circuit Breaker - 10 kAIC UL 489
Part Number: CHF135CS
Quick Summary
Eaton CHF135CS thermal magnetic circuit breaker protects CH load centers in electrical panels, delivering reliable overcurrent protection for 120/240 V circuits. This solution helps engineers avoid nuisance trips and difficult field diagnostics, reducing downtime and service costs. With UL 489 certification and HACR rating, it meets regulatory requirements for residential and light commercial HVAC panels while remaining compatible with Type CH load centers. The clamshell packaging and 30-unit quantity support efficient stocking and rapid deployment, while a compact single-pole design simplifies installation in cramped enclosures and minimizes panel footprint. Secondary considerations like trip indication further streamline maintenance planning and traceability across planned outages.
Product Information
Extended Description
CHF135CS Eaton: Eaton CH thermal magnetic circuit breaker,Type CHF 3/4-Inch standard circuit breaker clamshell pack,Clamshell pack,35 A,10 kAIC,Single-pole,120/240V,CHF,Trip flag, common breaker trip,(1) #14-8 AWG, (2) #14-10 AWG Cu/Al,Q30,CHF
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHF135CS
UPC
786685532240
Product Length/Depth
8 in
Product Height
1.5 in
Product Width
4 in
Product Weight
0.5 lb
Warranty
Limited lifetime residential, 1 year commercial
Compliances
HACR Rated
Certifications
UL 489
Catalog Notes
HACR Rated, Single-Pole Requires One 2/4-Inch Space, 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
35 A
Voltage rating
120/240 V
Trip Type
Trip flag
Circuit breaker type
CHF
Interrupt rating
10 kAIC
Main circuit breaker
CHF
Wire size
(2) #14-10 AWG Cu/Al (1) #14-8 AWG
Number of poles
Single-pole
Quantity
30
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - CHF135CS
Eaton type CH circuit breaker limited warranty June 2024
Feature 35 A amperage rating → Business Impact Delivers targeted protection for one fault path, supporting predictable load management and reducing thermal stress on wiring in CH load centers. Application Ideal for 35 A feeders in residential and light commercial panels, ensuring reliable performance with minimal impedance. Feature 10 kAIC interrupt rating → Business Impact Enables robust fault clearance for high fault currents, lowering risk of equipment damage and improving system uptime. Application Suitable for installations with moderate fault levels in 120/240 V circuits within Type CH distribution configurations. Feature 120/240 V voltage rating → Business Impact Supports versatile two-voltage operation, simplifying inventory for mixed panel environments and enabling one product to cover multiple circuits. Application Common in single-phase commercial and residential panel distributions using CH load centers. Feature Single-pole CHF design → Business Impact Saves space and reduces wiring complexity, accelerating field installation and minimizing enclosure footprint. Application Preferred for single-phase circuits within CH load centers where space is at a premium. Feature Trip flag and trip indication → Business Impact Improves maintenance efficiency by clearly signaling when a breaker has tripped, enabling faster diagnostics and reduced mean time to repair. Application Critical for HVAC panels and metering applications where quick fault identification is essential. Feature Clamshell pack packaging → Business Impact Protects the device during shipping and simplifies bulk stocking, reducing damage rates and handling time. Application Beneficial for distributors and contractors ordering in batches. Feature Wire size capacity (two #14-10 AWG Cu/Al, one #14-8 AWG) → Business Impact Supports straightforward terminations and accommodates common CH load center wiring schemes. Application Facilitates compliant field terminations in 120/240 V single-pole circuits. Feature Used with Type CH Loadcenters → Business Impact Ensures compatibility across Eaton CH distribution systems, reducing integration risk and inventory variety. Application Simplifies procurement for complete panel assemblies and retrofit projects.
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FAQs
The CHF135CS is designed as a Type CHF 3/4-Inch standard circuit breaker for CH load centers. It is a single-pole device rated for 35 A at 120/240 V with a 10 kAIC interrupt rating. It uses two #14-10 AWG conductors (Cu/Al) and one #14-8 AWG, and requires a single 2/4-inch space in the panel. This ensures straightforward drop-in replacement and reliable operation in compatible Eaton CH panels.
Core specifications include a 35 A amperage rating, 120/240 V voltage rating, and a 10 kA short-circuit interrupt capability (AIC). It is a single-pole CHF device with a trip flag for indication and is UL 489 listed. The wiring terminals accept (2) #14-10 AWG Cu/Al and (1) #14-8 AWG, making it suitable for standard CH load center configurations.
Yes. The CHF135CS features HACR rated compliance, which makes it appropriate for HVAC equipment and similar inductive loads. When paired with CH load centers and 120/240 V circuits, it delivers reliable protection against overloads and short circuits, meeting UL 489 requirements and supporting safe, code-compliant installations in commercial and residential HVAC projects.
The trip flag on the CHF135CS serves as a clear visual indicator that the breaker has tripped due to an overcurrent or fault condition. For service, verify circuit loading, inspect connected conductors, and reset the breaker if the circuit is clear and within rating. When trip conditions persist, consult the panel layout and inspect downstream devices before re-energizing to avoid recurrent faults.
The CHF135CS carries a limited lifetime residential warranty and a one-year commercial warranty, reflecting Eaton’s commitment to long-term reliability. In practice, this translates to lower lifecycle costs through reduced replacement frequency, predictable performance in CH load centers, and better total cost of ownership for panel assemblies and facility maintenance programs.