Eaton CHQ250CS Circuit Breaker - UL 489 Classified
Part Number: CHQ250CS
Quick Summary
Eaton CHQ250CS circuit breaker provides overcurrent protection for CH Loadcenters. Replacing older QO breakers often creates spacing and compatibility challenges that slow service calls. This UL 489-listed, two-pole unit is a classified CHQ 3/4-inch replacement designed for 120/240 V systems and ships in a protective clamshell pack. With a 10 kAIC interrupt rating and common-trip operation, it delivers reliable performance for shared loads while simplifying field installation. For buyers, this part supports fast maintenance, reduced downtime, and seamless integration within Eaton’s CH Loadcenter ecosystem, offering predictable lead times and straightforward stocking of replacement breakers.
Product Information
Extended Description
CHQ250CS Eaton: 3/4" Thermal magnetic circuit breakers,Type CHQ 3/4-Inch classified replacement breaker clamshell pack,Clamshell pack,50 A,10 kAIC,Two-pole,120/240V,CHQ,Common breaker trip,(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
CHQ250CS
UPC
782114752975
Product Length/Depth
8 in
Product Height
2 in
Product Width
4 in
Product Weight
0.5 lb
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 clamshell pack
Special features
Clamshell pack
Voltage rating
120/240 V
Trip Type
Common breaker trip
Circuit breaker type
CH
Interrupt rating
10 kAIC
Main circuit breaker
CHQ
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 - CHQ250CS
Feature → Business Impact → Application: The CHQ250CS is a 3/4-inch classified replacement breaker designed to fit CH Loadcenters, enabling efficient space planning in panel assemblies where two 3/4-inch spaces are required. This compatibility minimizes panel rework and accelerates swaps during maintenance, especially in retrofit projects where footprint consistency matters for rapid commissioning. Application: commercial and light industrial panels needing quick, accurate replacements without altering bus configurations. Feature → Business Impact → Application: It is a two-pole device with common-trip operation, ensuring simultaneous protection of multi-wire branch circuits. This reduces the risk of nuisance trips and potential backfeed between phases, improving safety and reliability in control panels and distribution boards. Application: motorStarter circuits, lighting feeders, and general power distribution in mid-size facilities.Feature → Business Impact → Application: Rated 120/240 V and 10 kAIC, the CHQ250CS withstands high fault currents while protecting downstream equipment. This supports NEC compliance for commercial installations and minimizes downstream damage during faults. Application: feeders to MCCs, transformers, and critical loads in serviced industrial spaces.Feature → Business Impact → Application: The clamshell pack provides protective packaging and easier handling during shipping and stocking, reducing field damage and improving logistics. Application: warehouse and field service operations where fast, safe access to replacement breakers is essential.Feature → Business Impact → Application: UL 489 listing and classification as CHQ 3/4-Inch replacement align with Eaton’s Loadcenter ecosystem, simplifying procurement and cross-reference with existing parts catalogs. Application: procurement and maintenance programs in facilities aiming for standardized protection across panels and minimal part variation.
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FAQs
Yes. CHQ250CS is designed as a classified replacement for Type CH Loadcenters and fits in the CH platform with a two-pole, 120/240 V rating. It accepts copper or aluminum conductors up to #14-8 and #14-10 AWG, respectively, ensuring suitable wiring options for common residential-to-light commercial panels.
CHQ250CS is a two-pole device with a 10 kAIC interrupt rating and a 120/240 V rating. Its footprint fits two 3/4-inch spaces in CH Loadcenters, and it ships in a clamshell pack. The unit weighs approximately 0.5 lb and measures about 8 in (length) Ă— 4 in (width) Ă— 2 in (height).
The CHQ250CS is ideal for commercial and light industrial panel boards requiring fast, reliable replacement for CH Loadcenters. It supports shared loads with common-trip protection, making it well-suited for motor and distribution circuits where minimal downtime and consistent protection are critical.
The CHQ250CS is UL 489 listed, confirming compliance with low-voltage circuit breaker standards. As a classified CHQ 3/4-inch replacement, it aligns with Eaton’s CH Loadcenter ecosystem, simplifying procurement for facilities requiring integrated protection and standardized components.
Using the CHQ250CS reduces downtime by providing a drop-in replacement with compatible dimensions and wiring. The UL listing and common-trip design enhance safety and reliability, while the clamshell packaging speeds stocking and field handling, contributing to lower maintenance costs and faster return on investment for panel upgrades.