Eaton CHF240 Thermal Magnetic Circuit Breaker - UL 489
Part Number: CHF240
Quick Summary
Eaton CHF240 thermal magnetic circuit breaker protects two-pole 120/240 V circuits in CH Loadcenters. In busy facilities, gaining reliable protection without wasting panel space or complicating maintenance is a common challenge. UL 489 certification, HACR rated, and a clear common-trip design with a trip flag support safe, code-compliant operation across residential and light commercial installs. Designed to integrate with CH Loadcenters and compatible with #10-1/0 AWG Cu/Al wiring, it delivers consistent performance while reducing service time. For procurement teams, the CHF240's clear specs and Eaton support resources reduce sourcing risk, streamline spec sheets, and simplify warranty coverage across residential, multifamily, and light commercial projects.
Product Information
Extended Description
CHF240 Eaton: Eaton CH Thermal magnetic circuit breaker, Type CHF 3/4-Inch standard circuit breaker, 40 A, 10 kAIC, Two-pole, 120/240V, CHF, Trip flag, common breaker trip, #10-1/0 AWG Cu/Al, CHF, Type CH Loadcenters
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHF240
UPC
786685532165
Product Length/Depth
1.5 in
Product Height
2.6 in
Product Width
3.3 in
Product Weight
0.55 lb
Warranty
Limited lifetime residential, 1 year commercial
Compliances
HACR Rated
Certifications
UL 489
Catalog Notes
HACR Rated. Two-Pole 120/240V Common Trip Requires Two 3/4-Inch Spaces. With Trip Indication
Used with
Type CH Loadcenters
Type
Type CHF 3/4-Inch standard circuit breaker
Amperage Rating
40 A
Voltage rating
120/240 V
Trip Type
Trip flag
Circuit breaker type
CHF
Interrupt rating
10 kAIC
Main circuit breaker
CHF
Wire size
#10-1/0 AWG Cu/Al
Number of poles
Two-pole
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - CHF240
Eaton type CH circuit breaker limited warranty June 2024
Two-pole CHF design provides simultaneous protection for both legs of a 120/240 V circuit. This reduces unbalanced loads and nuisance trips while supporting a clean, consistent panel layout. Application: Type CH Loadcenters in residential and light commercial installations where space is at a premium and reliability is non-negotiable. The 40 A rating with a 10 kAIC interrupt capability enables fast fault clearance, minimizing arc exposure and equipment damage. Application: branch circuits feeding motors, lighting, and outlets in compact panels. HACR rating and UL 489 certification ensure NEC compliance and regulatory confidence, simplifying procurement for HVAC, refrigeration, and motor-driven loads. Wiring compatibility up to #10-1/0 AWG Cu/Al expands installer options and reduces rework. The two-pole common-trip design with a trip flag supports quick fault diagnosis and coordinated protection across multi-pole circuits, enhancing serviceability in both retrofit and new construction projects.
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FAQs
The CHF240 is designed for Eaton CH Loadcenters and requires two 3/4-inch spaces for mounting. It provides common-trip operation with a trip indication and accepts #10-1/0 AWG Cu/Al conductors. It is HACR rated and UL 489 listed, making it suitable for residential and light commercial panels seeking coordinated protection.
Key specs include a 40 A amperage rating, 120/240 V voltage, 10 kAIC interrupt rating, two-pole configuration, Type CHF, and a 3/4-inch standard CHF footprint. It supports #10-1/0 AWG Cu/Al conductors and features a trip flag for easy diagnostics in CH Loadcenters.
Yes. The CHF240 is UL 489 listed and HACR rated, confirming compliance with safety standards and suitability for motor and HVAC loads. This simplifies procurement, helps satisfy NEC requirements, and ensures reliable performance across residential and light commercial installations.
The CHF240’s common-trip design and trip indication speed up diagnostics and reduce downtime during faults. Its durability and wide wire compatibility cut rework and stocking costs. Over time, this translates to faster commissioning, lower service costs, and improved panel uptime for ongoing operations in apartment buildings, offices, and small facilities.
Install the CHF240 into two available 3/4-inch spaces in the CH Loadcenter, then terminate conductors within the #10-1/0 AWG Cu/Al range per local guidelines. Verify proper operation and verify the trip indication after testing. The unit’s common-trip design ensures coordinated protection across all poles, simplifying maintenance and replacements.