Eaton CHQ225 Thermal Magnetic Circuit Breaker - UL 489
Part Number: CHQ225
Quick Summary
CHQ225 is a classified 3/4-inch thermal magnetic circuit breaker designed to protect CH Loadcenters in residential and light commercial installations. For installers facing tight spaces, replacing older devices can be a task that tests compatibility, labeling, and space planning. UL 489 certification underpins safety and reliability, while the common-trip two-pole design ensures coordinated protection across both conductors. Applied in distribution panels, this breaker supports 120/240 V systems and a 25 A rating, making it a straightforward fit for many retrofit projects. With a clamshell pack for easy handling and a standard 3/4-inch footprint, it streamlines procurement and reduces field errors, delivering measurable project value.
Product Information
Extended Description
CHQ225 Eaton: 3/4" Thermal magnetic circuit breakers,Type CHQ 3/4-Inch classified replacement breaker clamshell pack,25 A,10 kAIC,Two-pole,120/240V,CHQ,Common breaker trip,(1) #14-8 AWG, (2) #14-10 AWG Cu/Al,Q30,CHQ,Type CH Loadcenters
Product Name
Eaton Classified 3/4" thermal magnetic circuit breaker
Catalog Number
CHQ225
UPC
782113010915
Product Length/Depth
2.5 in
Product Height
3 in
Product Width
1.5 in
Product Weight
0.6 lb
Warranty
Limited lifetime residential, 1 year commercial
Certifications
UL 489
Catalog Notes
Replacement for Square D Type QO Breakers. Requires two 3/4-inch (19.1 mm) spaces.
Used with
Type CH Loadcenters
Type
Type CHQ 3/4-Inch classified replacement breaker clamshell pack
Special features
Clamshell pack
Amperage Rating
25 A
Voltage rating
120/240 V
Trip Type
Common breaker trip
Circuit breaker type
CH
Interrupt rating
10 kAIC
Main circuit breaker
CHQ
Wire size
(2) #14-10 AWG Cu/Al (1) #14-8 AWG
Number of poles
Two-pole
Quantity
30
Standard circuit breaker catalog numbers - 5651B63SH09
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - CHQ225
CHQ225 uses a 3/4-inch CHQ frame and a two-pole configuration, delivering a compact footprint that fits common residential panels. This saves panel space and simplifies retrofits, reducing install time and avoiding costly rewiring. The 25 A rating at 120/240 V provides reliable overload protection while accommodating higher fault currents in modern load centers. The 10 kAIC interrupt rating supports safer fault clearing in typical service environments, improving overall system reliability. Its common-trip design ensures synchronized operation across both poles, which is essential for multi-wire branch circuits and space-saving installations. Wiring options accommodate (2) #14-10 Cu/Al and (1) #14-8 Cu/Al, offering flexible connection patterns for diverse panel configurations. The clamshell packaging improves handling and stock management, while UL 489 certification confirms compliance with established safety standards and performance expectations for low-voltage protection.
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FAQs
CHQ225 is designed for Type CH Loadcenters and two-pole application. It fits a 3/4-inch wide slot layout and requires two spaces in the panel. It is intended as a classified replacement breaker with a 120/240 V rating and a 25 A capability, suitable for residential and light commercial circuits.
CHQ225 provides a 25 A amperage rating, operates at 120/240 V, uses a two-pole configuration, and has a 10 kAIC interrupt rating. It is UL 489 certified and configured as a Type CHQ 3/4-Inch classified replacement breaker with a common-trip design for coordinated protection.
Yes, CHQ225 is described as a replacement option for Square D Type QO breakers. It is packaged in a clamshell for easy handling and is intended for use in CH Loadcenters, requiring two 3/4-inch spaces to install. Verify panel compatibility and labeling during substitution.
CHQ225 carries a limited lifetime warranty for residential use and a 1-year warranty for commercial applications. Routine maintenance is minimal beyond standard electrical system checks; rely on UL 489 certification and manufacturer datasheets for installation guidance and long-term reliability.
Technical details are available on Eaton’s site via the CHQ225 specification sheet and related catalogs. Key downloads include the Eaton Specification Sheet - CHQ225 and the Standard circuit breaker catalog numbers document, both providing installation notes, wiring guidance, and compatibility considerations.