Eaton CHQ150CS Thermal Magnetic Circuit Breaker - UL 489
Part Number: CHQ150CS
Quick Summary
Eaton CHQ150CS is a 3/4-inch thermal magnetic circuit breaker designed for Type CH loadcenters. Replacing legacy breakers can be challenging due to space constraints and compatibility with existing bus and wiring. UL 489 certification ensures safe interrupt performance, while its 50 A rating and 10 kAIC withstands fault currents; it supports 120/240 V operation. This classified replacement offers CH Loadcenter compatibility and clamshell packaging to simplify installation and reduce downtime.
Product Information
Extended Description
CHQ150CS Eaton: 3/4" Thermal magnetic circuit breakers,Type CHQ 3/4-Inch classified replacement breaker clamshell pack,Clamshell pack,50 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
CHQ150CS
UPC
782116630691
Product Length/Depth
7.25 in
Product Height
6.5 in
Product Width
4.48 in
Product Weight
1.96 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 clamshell pack
Special features
Clamshell pack
Amperage Rating
50 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 - CHQ150CS
Feature: 3/4-inch classified CHQ design with 50 A rating → Business impact: Efficiently fits standard Type CH loadcenters in a single slot while protecting circuits up to 50 A. Application: Residential and light commercial panels requiring compact, code-compliant protection. Feature: 10 kAIC interrupt rating → Business impact: Enhanced fault protection reduces downstream damage and improves system reliability. Application: Any installation with higher fault current potential. Feature: Clamshell packaging → Business impact: Safer handling and straightforward field replacement, minimizing misplacement and installation time. Application: On-site retrofit projects and controlled warehouse stocking. Feature: Wire size compatibility (Cu/Al #14-8 and #14-10) → Business impact: Flexible wiring options streamline retrofits and new installations, lowering labor costs. Application: Standard residential wiring configurations and modest commercial feeders. Feature: Replacement for Square D QO breakers → Business impact: Easier cross-compatibility in mixed-brand environments, reducing inventory fragmentation. Application: Upgrading mixed fleets in CH Loadcenters. Feature: UL 489 listing and CHQ 3/4-Inch classified specification → Business impact: Regulatory compliance and assured performance for critical circuits. Application: Compliance-heavy installations in both new builds and service upgrades. Feature: Wiring compatibility with CH Loadcenters and single-pole configuration → Business impact: Simplified wiring schemes with predictable trip characteristics. Application: Power distribution in small to mid-size panels. Feature: Limited lifetime residential, 1 year commercial warranty → Business impact: Long-term support and lower total cost of ownership. Application: Customer support and maintenance planning across residential and light commercial sectors.
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FAQs
CHQ150CS is designed for Eaton Type CH Loadcenters and requires a single 3/4-inch space. It supports standard residential and light commercial panel setups and wires with Cu/Al sizes #14-8 and #14-10, enabling straightforward cross-compatibility where CH-type protection is specified.
CHQ150CS is rated at 50 A and operates at 120/240 V with a 10 kAIC interrupt capacity. It is a single-pole, Type CHQ classified replacement breaker, and ships in a clamshell pack for safe handling and quick field replacement.
Yes, CHQ150CS is documented as a replacement for Square D Type QO breakers in its catalog notes. However, always verify panel labeling, slot size (3/4 inch), and the CH Loadcenter compatibility to ensure a proper fit and maintained code compliance.
Important considerations include ensuring one 3/4-inch space per breaker, using Cu/Al wiring sizes of #14-8 and #14-10, and orienting the breaker for proper bus connection in Type CH Loadcenters. The clamshell packaging helps reduce handling errors during replacement or stocking.
CHQ150CS carries UL 489 certification, confirming standard electrical protection performance. It also offers a limited lifetime residential warranty and a 1-year commercial warranty, supporting long-term maintenance planning and total cost of ownership reduction.