Eaton CHF150ST Circuit Breaker - UL 489, 10 kAIC
Part Number: CHF150ST
Quick Summary
The Eaton CHF150ST thermal magnetic circuit breaker protects Type CH panels in commercial and light-industrial electrical systems. Engineers often wrestle with nuisance trips, improper amperage, or compatibility gaps with plug-on load centers. UL Listed under UL 489, HACR rated, and with a 10 kA interrupt rating, this device meets stringent safety and reliability standards. Its plug-on mounting, shunt trip option, and 50 A rating simplify panel design, shrink wiring, and improve maintenance predictability for modern electrical protection.
Product Information
Extended Description
CHF150ST Eaton: Eaton CH thermal magnetic circuit breaker,Type CHF plug-on circuit breaker,50 A,10 kAIC,Single-pole,120/240V,CHF,Trip flag, common breaker trip,#14-2 AWG Cu/Al,CHF,Type CH Loadcenters,Shunt trip included
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHF150ST
UPC
786685708355
Product Length/Depth
2.375 in
Product Height
6 in
Product Width
3.5 in
Product Weight
0.5 lb
Warranty
Limited lifetime
Compliances
HACR Rated
Certifications
UL Listed UL 489
Used with
Type CH Loadcenters
Type
Type CHF plug-on circuit breaker
Amperage Rating
50 A
Voltage rating
120/240 V
Trip Type
Trip flag
Circuit breaker type
CHF
Shunt trip
Included
Mounting Method
Plug-on
Interrupt rating
10 kAIC
Main circuit breaker
CHF
Wire size
#14-2 AWG Cu/Al
Number of poles
Single-pole
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - CHF150ST
Eaton type CH circuit breaker limited warranty June 2024
Feature: Thermal magnetic trip mechanism provides precise overcurrent protection. Business Impact: Reduces nuisance trips while maintaining selective coordination in mixed-load environments. Application: Ideal for commercial and light-industrial Type CH load centers where reliability is critical. Feature: 50 A amperage rating supports typical branch circuits without oversizing feeders unnecessarily. Business Impact: Optimizes energy use and reduces unnecessary breaker replacements. Application: Feeder and branch circuit protection in residential-adjacent commercial panels. Feature: 10 kAIC interrupt rating withstands high fault currents. Business Impact: Enhanced safety margin in buildings with high available fault current, lowering risk of arc-flash events. Application: Service entrances and main distribution subpanels in busy facilities. Feature: Plug-on mounting speeds installation and reduces field wiring complexity. Business Impact: Shorter commissioning time and fewer mis-wiring incidents, lowering labor costs. Application: Retrofit or new panel builds using CH Loadcenters. Feature: Shunt trip included supports remote tripping control. Business Impact: Enables integration with fire safety and building automation systems for enhanced safety. Application: Emergency-stop and alarm-enabled panel configurations. Feature: UL Listed UL 489 and HACR rated ensures compliance. Business Impact: Facilitates code-compliant installations and reduces audit findings. Application: Commercial electrical installations requiring regulatory adherence.
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FAQs
CHF150ST is designed for Eaton Type CH Loadcenters and uses a plug-on mounting approach for secure, quick installation. It is not a universal breaker, so verify CH-loadcenter compatibility and panel space before ordering. This single-pole device suits branch circuits in residential-adjacent commercial panels and other CH-family configurations.
Key specs include a 50 A amperage rating, voltage rating of 120/240 V, and a 10 kAIC interrupt rating. It is a single-pole CHF-type plug-on breaker with a built-in shunt trip and HACR rating, UL Listed under UL 489. These characteristics support reliable protection in typical CH-loadcenter environments.
Yes. The CHF150ST features a 10 kAIC interrupt rating, providing robust fault-current handling for commercial and light-industrial applications where high fault currents may exceed standard protections. This reduces the likelihood of breaker nuisance trips while maintaining fast disconnection during faults.
CHF150ST carries UL Listed 489 certification and HACR rating, confirming compliance with recognized safety and efficiency standards for electrical protection devices. This combination supports code-compliant installations in a variety of building types and simplifies regulatory audits.
The plug-on mounting speeds installation and reduces wiring errors, while the included shunt trip adds remote-tripping capability for safety interlocks. The device carries a limited lifetime warranty and UL/HACR certifications, contributing to lower maintenance costs and longer service intervals for CH-loadcenter systems.