Eaton CHQ125 Thermal Magnetic Circuit Breaker - UL 489

Part Number: CHQ125
Manufacturer
Eaton
Part number
CHQ125

Quick Summary

CHQ125 is a 3/4-inch classified thermal magnetic circuit breaker designed for Type CH Loadcenters in residential and light commercial panels. When replacing legacy or mismatched breakers, compatibility and space constraints can complicate selection. This unit carries UL 489 certification and is a classified replacement for Square D QO breakers, offering a 10 kAIC interrupt rating at 120/240 V. Designed for CH Loadcenters, it also helps streamline procurement and warranty coverage while reducing inventory complexity and mixing different families in critical panels.

Product Information

Extended Description

CHQ125 Eaton: Eaton 3/4" Thermal magnetic circuit breakers,Type CHQ 3/4-Inch classified replacement breaker,25 A,10 kAIC,Single-pole,120/240V,CHQ,(1) #14-8 AWG, (2) #14-10 AWG Cu/Al,CHQ,Type CH Loadcenters
Product Name
Eaton Classified 3/4" thermal magnetic circuit breaker
Catalog Number
CHQ125
UPC
782113010830
Product Length/Depth
2.5 in
Product Height
3 in
Product Width
0.8 in
Product Weight
0.3 lb
Warranty
Limited lifetime residential, 1 year commercial
Certifications
UL 489
Catalog Notes
Replacement for Square D Type QO Breakers. Requires one 3/4-inch (19.1 mm) space.
Used with
Type CH Loadcenters
Type
Type CHQ 3/4-Inch classified replacement breaker
Amperage Rating
25 A
Voltage rating
120/240 V
Circuit breaker type
CH
Interrupt rating
10 kAIC
Main circuit breaker
CHQ
Wire size
(1) #14-8 AWG (2) #14-10 AWG Cu/Al
Number of poles
Single-pole
Feature → Business Impact → Application: The CHQ125 uses a 3/4-inch footprint, allowing it to fit in restricted spaces within CH Loadcenters and save panel real estate in compact installations. This translates to easier retrofits in retrofit projects and new installations where space is at a premium. Application: residential and light commercial panels needing reliable protection with minimal footprint. Feature → Business Impact → Application: 25 A rating with a 10 kAIC interrupt capacity ensures fault handling is swift and safe, reducing downstream damage and downtime in sensitive equipment. Application: protection for circuits in CH Loadcenters that require high fault tolerance. Feature → Business Impact → Application: single-pole design simplifies wiring and reduces setup time while preserving conductor compatibility with Cu/Al (1) #14-8 AWG, (2) #14-10 AWG. Application: quick, compliant installations with common wire types. Feature → Business Impact → Application: classified replacement for QO breakers keeps inventories aligned with existing stock and code references, minimizing misfit risks. Application: retrofit programs replacing legacy QO with CHQ family devices. Feature → Business Impact → Application: UL 489 certification and CHQ classified status provide regulatory alignment, boosting compliance confidence and reducing risk during audits. Application: regulated environments requiring traceable protection devices. Feature → Business Impact → Application: 0.3 lb weight and compact form factor support easier handling and installation in crowded panels, improving jobsite efficiency. Application: field technicians installing CH Loadcenters in tight spaces. Feature → Business Impact → Application: warranty coverage (limited lifetime residential, 1 year commercial) supports long-term ownership costs and total cost of ownership for building portfolios. Application: asset management and ongoing maintenance programs.

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FAQs

Yes. CHQ125 is designed for Type CH Loadcenters and requires a single 3/4-inch space in the panel. This compact footprint aligns with CH bus configurations, enabling straightforward retrofits and efficient panel planning without rearranging existing circuitry.
CHQ125 is a 25 A, 120/240 V single-pole breaker with a 10 kAIC interrupt rating. It accommodates Cu/Al wiring: (1) #14-8 AWG and (2) #14-10 AWG. This combination supports common residential and light commercial branch circuits while maintaining safety margins for fault conditions.
CHQ125 is a classified replacement designed for CH Loadcenters and is positioned as a compatible option when replacing older Square D QO breakers in CH environments. It preserves intended circuit protection while simplifying inventory and ensuring correct fit and labeling in the CH family.
CHQ125 carries UL 489 certification and is marketed as a classified replacement breaker for CH Loadcenters. It supports a 10 kAIC interrupt rating and operates at 120/240 V, aligning with typical residential and light commercial panel requirements and regulatory expectations.
Using CHQ125 supports standardized Eaton CH Loadcenter ecosystems, reducing spare parts variety and simplifying procurement. The 25 A rating and high interrupt capacity decrease downtime risk, while the warranty scope (limited lifetime residential, 1 year commercial) provides predictable maintenance costs and long-term asset reliability.