Eaton CHQ230 Thermal Magnetic Circuit Breaker - UL 489
Part Number: CHQ230
Quick Summary
The Eaton CHQ230 thermal magnetic circuit breaker protects 120/240 V circuits in Type CH load centers. This compact, two-pole unit helps prevent nuisance trips in mixed Cu/Al wiring by delivering a clean, common-trip protection with precise 30 A rating. UL 489 certification underpins safe, code-compliant installations across residential, commercial, and light industrial panels. The CHQ230 is designed for CH Loadcenters and replacement scenarios, offering straightforward swap-in compatibility with common space requirements and wiring accommodations. By pairing robust protection with Eaton's classified design, this solution supports reliable uptime, easier maintenance, and predictable long-term total cost of ownership for electrical distribution systems.
Product Information
Extended Description
CHQ230 Eaton: 3/4" Thermal magnetic circuit breakers,Type CHQ 3/4-Inch classified replacement breaker,30 A,10 kAIC,Two-pole,120/240V,CHQ,Common breaker trip,(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
CHQ230
UPC
782113010922
Product Length/Depth
1.5 in
Product Height
2.7 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
Amperage Rating
30 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
(1) #14-8 AWG (2) #14-10 AWG Cu/Al
Number of poles
Two-pole
Standard circuit breaker catalog numbers - 5651B63SH09
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - CHQ230
Classification and compatibility: CHQ230 is a classified replacement for Square D QO breakers, using the 3/4-inch footprint and a common-trip two-pole design. This compatibility reduces replacement risk during panel refurbishments and minimizes stocking of mismatched parts. It is intended for Type CH Loadcenters, ensuring swap-in confidence during upgrades. Electrical ratings and performance: It delivers 30 A at 120/240 V with a 10 kAIC interrupt rating, supporting rapid fault interruption in light industrial, commercial, and residential panels. The dual-pole configuration provides coordinated protection for multi-wire branch circuits. This promotes improved fault discrimination and safer panel operation. Physical fit and installation: The unit width is 3/4 inch and attaches to two spaces in CH Loadcenters. Wire sizing compatibility is Cu/Al with (1) #14-8 AWG and (2) #14-10 AWG; installation follows standard torque specs and Eaton catalog notes. The design simplifies retrofits where space is at a premium. Safety, certifications, and warranty: UL 489 certification confirms compliance with safety standards for low-voltage breakers, and the classification adds confidence in code-ready installations. The product carries limited lifetime residential and 1-year commercial warranty, reducing lifecycle risk for customers and service teams. Compatibility and business value: By aligning with CH Loadcenters and Eaton's catalog ecosystem, CHQ230 supports streamlined maintenance, faster replacements, and reduced downtime in panel servicing. This translates to lower total cost of ownership and higher uptime for critical electrical distribution in facilities.
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FAQs
Replacing a Square D QO with CHQ230 is straightforward when installing in Eaton Type CH Loadcenters. It is a 3/4-inch classified replacement with a common trip and two-space footprint, so plan for two 3/4-inch spaces in the panel. Ensure conductor sizes are Cu/Al (#14-8 AWG and #14-10 AWG), and follow torque specs per the catalog. This minimizes panel downtime and preserves circuit coordination.
CHQ230 is specified for 30 A, 120/240 V operation with a two-pole configuration and a 10 kAIC interrupt rating. It is a Type CHQ 3/4-Inch classified replacement designed to work in CH Loadcenters, replacing a QO device with a common trip. Wiring accepts one Cu/Al conductor pair: (1) #14-8 AWG and (2) #14-10 AWG.
CHQ230 is suitable for residential and light commercial applications that use Type CH Loadcenters. Its 30 A rating and UL 489 certification support safe, code-compliant service in typical distribution panels. The common-trip two-pole design helps coordinate protection across multiple branches, while the 120/240 V rating covers most lighting and receptacle circuits found in small businesses and homes.
CHQ230 carries UL 489 certification, validating its compliance with safety requirements for circuit breakers in low-voltage distribution. As a classified replacement, it aligns with Eaton’s CH Loadcenter ecosystem and catalog notes for QO-to-CH migration, ensuring compatibility and safe operation in residential, commercial, and light industrial panels. It also supports common trip coordination and Cu/Al wiring guidelines.
Maintenance and ROI are favorable with CHQ230 due to its classified replacement status and standardized footprint, which reduce downtime during panel servicing and simplify stocking. The UL 489 rating ensures ongoing compliance, while the limited lifetime residential and 1-year commercial warranty lowers lifecycle risk. Overall, expect lower service time, reduced inventory costs, and improved uptime in CH Loadcenter deployments.