Eaton CHF145ST Circuit Breaker - UL 489 Listed
Part Number: CHF145ST
Quick Summary
Eaton CHF145ST circuit breaker protects circuits in Type CH load centers with reliable thermal magnetic protection. It ensures fast, precise interruption at 45 A, 120/240 V, and up to 10 kAIC. Replacing aging breakers can disrupt production; the CHF145ST offers plug-on mounting and clear trip flags to reduce downtime. UL Listed UL 489 and HACR rated compliance help meet code requirements, while compatibility with CH load centers streamlines replacement and future expansion. This solution also supports remote control capabilities through the included shunt trip, and its plug-on mounting reduces panel downtime during service. By combining solid protection with straightforward installation, it delivers lower total cost of ownership and higher equipment uptime for critical electrical systems.
Product Information
Extended Description
CHF145ST Eaton: Eaton CH thermal magnetic circuit breaker,Type CHF plug-on circuit breaker,45 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
CHF145ST
UPC
786685708348
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
45 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 - CHF145ST
Eaton type CH circuit breaker limited warranty June 2024
The CHF145ST uses a thermal magnetic trip mechanism to deliver predictable protection against overloads, reducing equipment damage and unscheduled downtime. Business impact: improved reliability and longer service life for panels in demanding environments; application: Type CH Loadcenters in industrial or commercial facilities. The plug-on mounting design simplifies field retrofits and panel upgrades, enabling faster replacement and reduced commissioning time; application: maintenance cycles and new installations alike. Shunt trip included expands safety capabilities for remote emergency shutdowns; business impact: enhanced employee safety and compliance with control-system interlocks; application: control rooms and process areas requiring rapid isolation. Wire size compatibility of #14-2 AWG Cu/Al supports common wiring schemes, while a 10 kAIC interrupt rating provides robust fault-current handling; application: feeder protection in panel boards and distribution networks. UL Listed UL 489 and HACR rated certifications help ensure regulatory compliance and acceptance across regions, while 45 A rating and 120/240 V operation align with standard commercial/industrial power systems; business impact: minimizes engineering variance and boosts procurement efficiency. The Type CHF plug-on breaker integrates seamlessly with Type CH Loadcenters, offering a cohesive, scalable protection strategy with a proven track record of performance and ease of maintenance.
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FAQs
CHF145ST is a plug-on, single-pole breaker designed for Type CH Loadcenters. It accepts #14-2 AWG Cu/Al conductors, fits 120/240 V systems, and provides a 10 kAIC interrupt rating. For best results, ensure correct panel compatibility, verify clearances, and follow standard panel procedures to minimize downtime during retrofit or replacement.
Core specs include a 45 A amperage rating, 120/240 V voltage rating, 10 kAIC interrupt rating, single-pole configuration, and plug-on mounting. It is HACR rated and UL Listed UL 489, with shunt trip included. Wire size supported is #14-2 AWG Cu/Al, making it suitable for common residential and light commercial installations.
Yes. The CHF145ST ships with a shunt trip included, enabling remote tripping for enhanced safety in control rooms and process environments. This feature supports integration with safety relays and emergency shutdown systems, helping facilities meet stringent safety requirements without complex retrofits.
CHF145ST is UL Listed UL 489 and HACR rated, ensuring code compliance and broad acceptance in electrical installations. These certifications simplify approvals for new builds and upgrades, reducing engineering review time and enabling quicker procurement and installation within Type CH Loadcenters.
The CHF145ST provides reliable protection with a limited lifetime warranty, reducing replacement frequency and downtime. Its plug-on design minimizes service time during upgrades, while its compatibility with CH Loadcenters supports scalable protection as electrical loads evolve, delivering lower total cost of ownership over the equipment lifecycle.