Eaton CHF120 Circuit Breaker - UL 489 HACR Rated
Part Number: CHF120
Quick Summary
The Eaton CHF120 circuit breaker protects panels by quickly interrupting fault currents in residential and light commercial electrical systems. In tight spaces, achieving reliable protection without sacrificing space or install time is a recurring challenge. This CHF120 is UL 489 listed, HACR rated, and designed for Type CH loadcenters, supporting efficient, code-compliant installations. With a 20 A, 120/240 V rating and trip-flag indication, it helps facilities meet safety targets while controlling costs. Engineers appreciate its compatibility with standard wiring schemes and 3/4-inch space requirements for easy panel mounting. The device's 10 kAIC interrupt rating provides margin for short-circuit events typical in light commercial applications.
Product Information
Extended Description
CHF120 Eaton: Eaton CH Thermal magnetic circuit breaker, Type CHF 3/4-Inch standard circuit breaker, 20 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
CHF120
UPC
786685361840
Product Length/Depth
3 in
Product Height
3 in
Product Width
0.75 in
Product Weight
0.28 lb
Warranty
Limited lifetime residential, 1 year commercial
Compliances
HACR Rated
Certifications
UL 489
Catalog Notes
Switching Duty Rated, HACR Rated, Single-Pole Requires One 3/4-Inch Space, With Trip Indication.
Used with
Type CH Loadcenters
Type
Type CHF 3/4-Inch standard circuit breaker
Amperage Rating
20 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 - CHF120
Eaton type CH circuit breaker limited warranty June 2024
Compact 3/4-inch frame width and a 3 in length deliver a space-efficient footprint for panel boards. The CHF120’s single-pole design minimizes intrusion into bus bars while maintaining a clear path for conductors, enabling faster pull and termination of wires. In practice, this translates to higher panel density and reduced material costs across many Type CH loadcenter applications. Additionally, the compact form supports retrofit projects where cabinet depth is at a premium, helping maintain project timelines and reduce labor costs. Thermal magnetic operation provides predictable, instantaneous protection against overloads and short circuits, while the 10 kAIC interrupt rating offers a generous margin for typical light-commercial fault currents, enhancing system reliability. The built-in trip flag provides immediate visual indication when a device has opened, reducing troubleshooting time during maintenance. Electrical ratings align with common residential and small business circuits: 20 A at 120/240 V, single-pole operation. Notably, the CHF series is HACR rated, making it suitable near HVAC equipment and other high-startup loads, while UL 489 certification confirms compatibility with standard low voltage panels, delivering safer, code-compliant protection with minimal design impact. Compatibility with Type CH Loadcenters means fewer inventory SKUs to stock and easier cross-reference during panel replacements. Wire-size support covers (1) #14-8 AWG and (2) #14-10 AWG Cu/Al, supporting both copper and aluminum conductors. The device’s 3/4-Inch space requirement simplifies panel planning and ensures code-compliant installations. Comprehensive documentation, including the Eaton specification sheet and warranty guides, supports field engineering and service contracts. The limited lifetime residential, 1 year commercial warranty aligns with typical service contracts for light-commercial projects, helping to manage total cost of ownership and ROI across equipment lifecycles.
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FAQs
CHF120 is a single-pole 20 A circuit breaker designed for Type CH Loadcenters and residential or light commercial panels. It accepts conductors up to #14-8 AWG (Cu/Al) on one pole, with two #14-10 AWG feeds for correct termination. The unit requires a 3/4-inch space in the panel, enabling straightforward field wiring and reliable protection across common circuits.
CHF120 is rated for 20 A and 120/240 V, with a 10 kAIC interrupt rating for dependable fault interruption. It is UL 489 listed and HACR rated, suitable for HVAC-related loads and general use in Type CH Loadcenters, ensuring compliance with safety standards and panel interchangeability.
The device’s 3/4-inch wide, single-pole CHF frame and compact 3x3 inch footprint fit tight panels, reducing enclosure depth and simplifying wire routing. Its compatibility with standard wiring and space-forcing design minimizes drafting and field modification, helping mod projects stay on schedule and lowering labor costs.
Eaton provides a specification sheet, catalogs, and warranty guides for CHF120, including the limited lifetime residential and 1-year commercial warranty. This documentation supports compliance checks, installation planning, and warranty claims, improving serviceability and ROI over the product lifecycle.
Yes. CHF120 supports Cu and Al wiring (1) #14-8 AWG and (2) #14-10 AWG, enabling flexible field wiring. Its HACR rating and UL 489 certification make it suitable for use near HVAC equipment, offering safe, code-compliant protection in spaces where cooling and heating loads are present.