Eaton CHQ115 3/4" Classified Breaker - UL 489
Part Number: CHQ115
Quick Summary
Eaton CHQ115 is a 3/4-inch classified thermal magnetic circuit breaker for Type CH load centers in commercial and light industrial panels. This solution addresses common retrofit challenges by enabling replacement without extensive rewiring and while preserving panel space. It carries UL 489 listing to support safe, reliable operation in 120/240 V circuits and offers a 10 kAIC interrupt rating for robust fault protection. Designed as a direct replacement for Square D Type QO breakers, it accommodates copper and aluminum conductors (#14-8 AWG and #14-10 AWG) within a single CH Loadcenter slot. In practice, CHQ115 reduces downtime and simplifies inventory, delivering consistent NEC-compliant performance across sites and projects.
Product Information
Extended Description
CHQ115 Eaton: 3/4" Thermal magnetic circuit breakers,Type CHQ 3/4-Inch classified replacement breaker,15 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
CHQ115
UPC
782113010816
Product Length/Depth
0.7 in
Product Height
2.7 in
Product Width
3 in
Product Weight
0.25 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
15 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
Standard circuit breaker catalog numbers - 5651B63SH09
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - CHQ115
Feature → Business Impact → Application: The CHQ115 is a classified replacement breaker that fits 3/4-inch spaces in Type CH Loadcenters, enabling seamless retrofits in existing panels. This compact footprint drives installation efficiency and reduces panel rework costs in commercial and light industrial environments. Application: Ideal for replacing legacy QO breakers in CH load centers used in service panels and compact industrial control panels. Feature → Business Impact → Application: It operates at 120/240 V with a 15 A rating and 10 kAIC interrupt capacity, delivering predictable protection for branch circuits. Impact: minimizes nuisance trips and enhances safety, supporting code compliance in both new builds and refurbishments. Application: Residential and light commercial feeders where space is at a premium and reliability is critical. Feature → Business Impact → Application: Terminal wiring accommodates (1) #14-8 AWG and (2) #14-10 AWG Cu/Al, simplifying field terminations. Impact: reduces wiring complexity and improves termination reliability in CH Loadcenters. Application: New installations and retrofits in utility rooms, mechanical spaces, and distributed control panels.
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FAQs
CHQ115 is designed as a classified replacement for Square D Type QO breakers and fits Type CH Loadcenters with a single 3/4-inch space. It supports single-pole operation, 15 A rating, and connections for (1) #14-8 AWG and (2) #14-10 AWG Cu/Al. This combination enables straightforward retrofits without rewiring, helping projects maintain electrical protection standards while minimizing downtime.
The CHQ115 is rated for 15 A at 120/240 V and provides a 10 kAIC interrupt rating. It is a single-pole classified breaker intended for use in CH Loadcenters. The wiring options accommodate (1) #14-8 AWG and (2) #14-10 AWG Cu/Al, supporting reliable branch-circuit protection in standard residential and light commercial circuits.
Yes, CHQ115 is a classified replacement for Square D Type QO breakers and is intended for CH Loadcenters. It occupies a 3/4-inch space, enabling a one-slot replacement within existing panels. This minimizes panel modification and preserves existing conductors while delivering Eaton’s protection scheme.
CHQ115 carries UL 489 certification, ensuring compliance with established safety standards for low-voltage circuit breakers. The product carries a limited lifetime warranty for residential use and a 1-year warranty for commercial applications, providing reassurance on long-term reliability and support during project deployment.
By offering a compact 3/4-inch form factor, 15 A rating, and straightforward Cu/Al terminations, CHQ115 reduces panel space requirements and simplifies splicing and wiring tasks. Its compatibility with CH Loadcenters and QO replacement lineage minimizes downtime, lowers inventory complexity, and improves scheduling predictability for service upgrades and new installations.