Eaton CHNT2020CS Circuit Breaker - UL489, 10 kAIC
Part Number: CHNT2020CS
Quick Summary
The Eaton CHNT2020CS is a thermal magnetic circuit breaker designed for residential and light commercial panelboards. Replacing aging or incompatible breakers in legacy panels can cause downtime and fit issues. UL 489 certification, HACR rating, and Switching Duty Rated construction provide safety and performance assurances. Designed for plug-on replacement in CH loadcenters and compatible pre-1968 structures, it simplifies retrofits, reduces spare-parts complexity, and supports compliant, reliable protection. For OEMs and distributors, the CHNT2020CS provides consistent ordering, inventory planning, and streamlined service levels. Its 20 A rating and 120/240 V capability align with common branch circuits in many commercial and residential installations, delivering reliable protection with minimal risk.
Product Information
Extended Description
CHNT2020CS Eaton: Eaton CH thermal magnetic circuit breaker,Type CHNT non-CTL plug-on replacement circuit breaker clamshell pack,Clamshell pack,20 A,10 kAIC,Single-pole,120/240V,CHNT,#14-8 AWG Cu/Al,Q30,CHNT
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHNT2020CS
UPC
786685491080
Product Length/Depth
6 in
Product Height
1.5 in
Product Width
4 in
Product Weight
0.1 lb
Warranty
Limited lifetime residential, 1 year commercial
Certifications
UL 489
Catalog Notes
Switching Duty Rated, HACR Rated, Single-Pole Requires One 2/4-Inch Space
Used with
As replacement in loadcenters built prior to 1968 and within the current style (2) 8 circuit loadcenters
Type
Type CHNT non-CTL plug-on replacement circuit breaker clamshell pack
Special features
Clamshell pack
Amperage Rating
20-20A
Voltage rating
120/240 V
Circuit breaker type
CH
Mounting Method
Plug-on
Interrupt rating
10 kAIC
Main circuit breaker
CHNT
Wire size
#14-8 AWG Cu/Al
Number of poles
Single-pole
Quantity
30
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - CHNT2020CS
Eaton type CH circuit breaker limited warranty June 2024
Feature a CHNT non-CTL plug-on replacement circuit breaker that mounts directly in CH loadcenters. Business Impact: reduces panel downtime and speeds retrofits for aging electrical systems. Application: ideal for legacy Eaton panelboards and pre-1968 installations where a precise fit is essential. Feature a 20 A rating at 120/240 V with a 10 kAIC interrupt rating. Business Impact: protects circuits against faults while allowing safe, rapid service and compliance with UL 489. Application: supports standard lighting and receptacle circuits in residential and light commercial builds. Feature clamshell pack packaging for safe handling and shipping. Business Impact: minimizes damage during transit and simplifies inventory management. Application: convenient for distributors and technicians stocking replacement parts. Feature compatibility with #14-8 AWG Cu/Al wires and single-pole mounting. Business Impact: broadens wiring compatibility and speeds installation in mixed wiring environments. Application: suitable for a wide range of branch circuits. Feature Switching Duty Rated and HACR rating. Business Impact: ensures reliable performance with HVAC loads and other motorized equipment; improves protection during start-up transients. Application: practical for commercial spaces with mixed loads. Feature UL 489 certification. Business Impact: meets recognized safety standards, easing approvals during modernization projects. Application: essential for code-compliant installations across residential and light commercial sectors.
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FAQs
Power down the panel, verify the CHNT2020CS is a suitable 20A single-pole, and ensure space per catalog notes. Remove the existing breaker, then plug the CHNT unit directly into the available CHNT bus stabs. Use #14-8 AWG Cu/Al wire, tighten terminals, and close the panel. Confirm 120/240V operation and test for proper tripping behavior.
The CHNT2020CS features a 10 kAIC interrupt rating, enabling robust fault interruption for typical residential and light commercial loads. It is UL 489 listed, ensuring compliance with safety standards. When selecting this breaker, verify the panel’s maximum interrupt rating to ensure full protection alignment with the circuit it serves.
Yes. The CHNT2020CS is designed as a plug-on replacement for CH-type loadcenters, including panels built prior to 1968 and within the CHNT family. It comes in a clamshell pack for easy handling and is compatible with single-pole circuits, requiring a standard 2/4 inch space per catalog notes for proper fit.
CHNT2020CS carries UL 489 certification and HACR rating, with Switching Duty Rated construction to handle motor loads and HVAC equipment. The device is a 20A, 120/240V single-pole breaker designed for CHNT panels and plug-on installation, ensuring safe and reliable operation in residential and light commercial environments.
Eaton provides a limited lifetime residential and 1-year commercial warranty for the CHNT2020CS. For maintenance, follow standard electrical protective practices, inspect connections during retrofit, and replace the unit if it shows signs of wear or tripping inconsistently. Regular inspections help sustain protection levels and reduce unexpected downtime.