Eaton CHQ120CS Circuit Breaker - 10 kAIC Classified
Part Number: CHQ120CS
Quick Summary
Eaton Classified 3/4" thermal magnetic circuit breaker protects panels in distribution systems. Finding a reliable UL-listed replacement that fits a single 3/4 inch space can slow projects. UL 489 certification, compatibility with Type CH Loadcenters, and a 10 kAIC interrupt rating support safety and uptime in demanding installations. This model offers a compact, clamshell-pack solution that reduces handling steps and inventory clutter. By aligning with CH Loadcenter designs, it delivers straightforward installation, predictable tripping, and easy field replacement. For engineers and procurement teams, it supports faster maintenance cycles, lower error rates, and consistent protection across commercial and light industrial panels.
Product Information
Extended Description
CHQ120CS Eaton: 3/4" Thermal magnetic circuit breakers,Type CHQ 3/4-Inch classified replacement breaker clamshell pack,Clamshell pack,20 A,10 kAIC,Single-pole,120/240V,CHQ,(1) #14-8, (2) #14-10 AWG Cu/Al,CHQ,Type CH Loadcenters
Product Name
Eaton Classified 3/4" thermal magnetic circuit breaker
Catalog Number
CHQ120CS
UPC
782114752913
Product Length/Depth
7.25 in
Product Height
6.5 in
Product Width
4.48 in
Product Weight
1.96 lb
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 clamshell pack
Special features
Clamshell pack
Voltage rating
120/240 V
Circuit breaker type
CH
Interrupt rating
10 kAIC
Main circuit breaker
CHQ
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 - CHQ120CS
Feature: 3/4-inch classified replacement breaker in a clamshell pack reduces misfits and streamlines stocking. Business Impact: lowers project delays and simplifies warehouse handling while ensuring accurate part numbers. Application: ideal for CH Loadcenters in new builds or retrofits, minimizing install time. Feature: Thermal magnetic single-pole operation at 120/240 V provides reliable overcurrent protection. Business Impact: predictable tripping behavior reduces nuisance trips and protects sensitive loads. Application: suitable for lighting, motors, and general circuits in commercial spaces. Feature: 10 kAIC interrupt rating enhances fault tolerance and minimizes downtime during faults. Business Impact: boosts system uptime and safety margins in data centers and manufacturing floors. Application: critical power feeds and distribution panels requiring high fault withstand capability. Feature: Replacement for Square D Type QO breakers simplifies inventory with cross-compatibility notes. Business Impact: reduces SKU count and procurement complexity. Application: service upgrades and panel modernization projects. Feature: Clamshell packaging improves handling, shipping safety, and theft deterrence. Business Impact: safer logistics and easier field stocking. Application: distribution centers and service fleets deploying CHQ120CS.
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FAQs
CHQ120CS installs in Type CH Loadcenters as a single-pole 3/4-inch classified replacement, occupying one space. Ensure the panel is rated for 120/240 V and confirm UL 489 listing before replacement. The clamshell packaging aids handling and reduces the risk of mislabeling during field swaps.
The unit is rated for 120/240 V operation with a 10 kAIC interrupt rating and uses a single-pole CHQ 3/4-Inch classified design. It is UL 489 listed and is intended as a replacement within CH Loadcenters, compatible with standard conductor sizes as noted in the product spec.
Yes, CHQ120CS is a classified replacement breaker noted as a replacement for Square D Type QO breakers. Verify panel compatibility and space requirements (one 3/4-inch space) before replacement, and ensure the overall panel is rated for the voltage and interrupt capability.
CHQ120CS is UL 489 listed, confirming compliance with standard safety and performance criteria for low-voltage circuit breakers. This listing supports compliance for commercial and light industrial installations and aligns with Type CH Loadcenter applications.
Using CHQ120CS can reduce inventory complexity by offering a compatible CH Loadcenter replacement, shorten maintenance cycles due to straightforward installation, and minimize downtime with a high 10 kAIC rating. The clamshell packaging also improves handling during service calls and stocking in distribution centers.