Eaton CHQ250 circuit breaker - UL 489
Part Number: CHQ250
Quick Summary
The Eaton CHQ250 circuit breaker provides reliable protection for residential and light commercial electrical panels. Replacing a failed breaker is often costly and time-consuming; the CHQ250 offers classified CHQ compatibility to simplify cross-reference and minimize downtime. UL 489 certification underpins its safety and performance for 120/240 V systems. This solution supports CH load centers while delivering ground fault capability and robust two-pole protection, helping electrical teams reduce service interruptions. By aligning with common CH Loadcenter configurations, it also streamlines inventory and maintenance workflows, delivering value through code-compliant protection and predictable interchange with existing Eaton and CH-series components.
Product Information
Extended Description
CHQ250 Eaton: 3/4" Thermal magnetic circuit breakers,Type CHQ 3/4-Inch classified replacement breaker,Ground fault,50 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
CHQ250
UPC
782113010960
Product Length/Depth
1.5 in
Product Height
2.7 in
Product Width
1.5 in
Product Weight
0.55 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
Special features
Ground fault
Amperage Rating
50 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
Standard circuit breaker catalog numbers - 5651B63SH09
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - CHQ250
Feature: Classified replacement capability for CHQ 3/4-inch breakers. Business impact: Simplifies stock management and cross-reference with Square D QO, reducing downtime during panel servicing. Application: CH Loadcenters in residential and light commercial environments. Feature: Ground fault protection. Business impact: Improves safety and fault detection for sensitive circuits, lowering risk of shock and equipment damage. Application: Any outlet or appliance circuits where ground leakage is a concern. Feature: 50 A amperage rating. Business impact: Matches typical branch circuit protection for HVAC, lighting, and receptacle circuits, enabling code-compliant protection while avoiding nuisance tripping. Application: 120/240 V circuits in small to mid-size panels. Feature: 10 kAIC interrupt rating. Business impact: High fault current handling preserves panel integrity and reduces service calls after faults. Application: Areas with higher fault current or dense panel environments. Feature: Two-pole design and 3/4-inch width. Business impact: Conserves panel space and supports two-conductor wiring layouts, improving installation efficiency. Application: Compact CH Loadcenters and retrofit projects. Feature: Wiring compatibility for Cu/Al (two #14-10 AWG, one #14-8 AWG). Business impact: Enhances compatibility with mixed conductor stocks, lowering wiring errors and rework. Application: Routine branch-circuit wiring in mixed-material installations.
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FAQs
CHQ250 is a classified replacement for CH Loadcenters and is designed for two-pole installation in 3/4-inch spaces. It uses wiring compatible with (2) #14-10 AWG Cu/Al and (1) #14-8 AWG, supporting standard residential and light commercial panel configurations. Ensure space is available in the panel and follow manufacturer torque guidelines for terminal connections.
The CHQ250 is a 50 A, 120/240 V two-pole circuit breaker with a 10 kAIC interrupt rating. It includes ground fault protection and is a Type CHQ 3/4-Inch classified replacement, suitable for CH Loadcenters and UL 489-listed.
Use CHQ250 in residential and light commercial CH Loadcenters requiring reliable 2-pole protection, space-efficient 3/4-inch width, and ground fault capability. It is designed as a classified replacement aligned with CH-series systems and supports cross-reference with common QO-type devices where permitted.
CHQ250 carries UL 489 certification, ensuring compliance with safety and performance standards for low-voltage circuit breakers used in residential and light commercial panels. This certification supports code compliance and field reliability for critical electrical installations.
Using CHQ250 as a classified replacement reduces downtime by enabling faster cross-referencing with existing panels, simplifies stocking with a single compatible unit, and improves safety with ground fault protection. The result is lower maintenance costs and higher first-pass service success in CH Loadcenter retrofit projects.