Eaton CHF125 Thermal Magnetic Circuit Breaker - UL 489
Part Number: CHF125
Quick Summary
The CHF125 thermal magnetic circuit breaker from Eaton protects electrical panels and feeders in industrial and light commercial installations. Nuisance trips or insufficient protection across 120/240 V circuits can disrupt production and complicate service calls. UL 489 certification and HACR rating provide safety and performance assurance for HVAC and general purpose loads. This single-pole device is designed for Type CH Loadcenters and 25 A circuits, offering reliable interrupt performance with a 10 kAIC rating. Its compact footprint supports space‑conscious panel layouts, and the built‑in trip flag simplifies diagnosis during inspections. By specifying the CHF125, engineers achieve predictable protection and easier maintenance, aligning with cost controls and compliance.
Product Information
Extended Description
CHF125 Eaton: Eaton CH thermal magnetic circuit breaker,Type CHF 3/4-Inch standard circuit breaker,25 A,10 kAIC,Single-pole,120/240V,CHF,Trip flag, common breaker trip,(1) #14-8 AWG, (2) #14-10 AWG Cu/Al,CHF,Type CH Loadcenters
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHF125
UPC
786685361857
Product Length/Depth
0.7 in
Product Height
2.6 in
Product Width
3.2 in
Product Weight
0.25 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
Amperage Rating
25 A
Voltage rating
120/240 V
Trip Type
Trip flag
Circuit breaker type
CHF
Interrupt rating
10 kAIC
Main circuit breaker
CHF
Wire size
(1) #14-8 AWG (2) #14-10 AWG Cu/Al
Number of poles
Single-pole
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - CHF125
Eaton type CH circuit breaker limited warranty June 2024
Feature: Compact CHF 3/4-inch form factor saves panel space and simplifies installation. Business Impact: Enables dense panel layouts without sacrificing protection, reducing cabinet depth in new builds and retrofit projects. Application: Ideal for Type CH Loadcenters in residential and light commercial spaces, where space is a premium and reliability is non-negotiable. Feature: 25 A amperage rating for 120/240 V circuits. Business Impact: Delivers precise overcurrent protection for branch circuits, minimizing nuisance trips and preventing equipment damage. Application: Suitable for lighting runs and small branch circuits in offices, schools, and retail environments. Feature: 10 kAIC interrupt rating. Business Impact: Enhances fault clearance capability, improving safety margins in moderate to high fault-current scenarios. Application: Critical in panels fed from sources with higher short-circuit potential, reducing damage risk to feeders and devices. Feature: HACR rated and UL 489 certified. Business Impact: Ensures compliance with safety standards for heating, air conditioning, and general loads, enabling easier code adherence. Application: HVAC control circuits and general purpose panels where formal certification matters. Feature: Wire size compatibility (#14-8 AWG Cu/Al and #14-10 AWG Cu/Al). Business Impact: Supports common residential and light commercial wiring practices, streamlining installer stocking. Application: Fast, reliable wiring for CH Loadcenters with standard conductor sizes. Feature: Trip flag and single-pole configuration. Business Impact: Facilitates quick status checks during maintenance and testing, reducing downtime. Application: Routine panel inspections and service calls in tight spaces where visibility is limited.
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FAQs
CHF125 installs as a single-pole CHF 3/4-inch breaker in Type CH Loadcenters, requiring one 2/4-inch space. It supports conductor sizes of #14-8 AWG and #14-10 AWG Cu/Al. Ensure the panel rating matches a 25 A branch circuit and verify the trip flag is clearly visible after a fault to confirm proper operation.
CHF125 is rated for 25 A at 120/240 V with an interrupt rating of 10 kAIC. This combination provides solid protection for moderate fault currents while supporting standard residential and light commercial loads. Its single-pole configuration is suitable for simple branch circuits within CH Loadcenters.
Yes. CHF125 is HACR rated and UL 489 certified, making it appropriate for HVAC control circuits and general lighting loads within Type CH Loadcenters. The HACR rating indicates compatibility with heating and cooling equipment, while UL 489 confirms adherence to established safety standards.
CHF125 carries UL 489 certification and HACR rating, signaling conformance to recognized safety standards and suitability for HVAC and general purpose applications. These certifications support regulatory compliance, reduce risk of noncompliance penalties, and simplify approval processes for installation in commercial and residential projects.
The CHF125 offers reliable overcurrent protection with a durable 10 kAIC interrupt rating and a visible trip indicator, reducing unscheduled downtime. Maintenance involves periodic visual checks of the trip flag and confirming conductor integrity. Its space-saving form factor can lower enclosure costs, improve panel density, and shorten installation time, yielding favorable total cost of ownership.