CHF240 - 40A Circuit Breaker

CHF240 - 40A Circuit Breaker

The Eaton CHF240 is a 40 Amp, 2-pole circuit breaker designed for use in compatible Eaton Type CH loadcenters. It's commonly used when replacing an existing CHF-series breaker or maintaining a CH panel that requires a 40-amp, 120/240-volt breaker.

The CHF240 also includes a trip flag indicator that provides a visible indication when the breaker has tripped. During troubleshooting or routine service, this makes it easier to identify the affected circuit inside the panel.

A thermal-magnetic trip mechanism responds to overloads and short circuits, while the 10 kAIC interrupt rating supports use in a variety of residential and light-commercial installations. The breaker is UL 489-listed, HACR-rated, and accepts #10–1/0 AWG copper or aluminum conductors.

Whether you're replacing a damaged breaker, matching an existing panel configuration, or keeping maintenance inventory available, the CHF240 provides the correct fit for approved Eaton CH systems and is built to last.

Key Features and Benefits

• Genuine Eaton CHF series circuit breaker
• 40 Amp current rating
• Two-pole configuration for 120/240V circuits
• Common-trip mechanism disconnects both poles simultaneously
• Built-in trip flag indicator for quick fault identification
• Thermal magnetic protection against overloads and short circuits
• 10 kAIC interrupt rating
• Designed for use with Eaton Type CH loadcenters
• Plug-in installation design
• HACR rated for approved heating, air conditioning, and refrigeration applications
• Accepts #10–1/0 AWG copper or aluminum conductors
• Occupies two 3/4-inch panel spaces
• Suitable for residential and light commercial electrical systems

Technical Specifications

• Manufacturer: Eaton
  
• Catalog Number: CHF240
  
• UPC: 786685532165
  
• Product Type: Thermal Magnetic Circuit Breaker
  
• Series: CH
  
• Circuit Breaker Type: CHF
  
• Type: Type CHF 3/4-Inch Standard Circuit Breaker
  
• Amperage Rating: 40 Amps
  
• Voltage Rating: 120/240 VAC
  
• Number of Poles: 2
  
• Trip Type: Trip Flag
  
• Interrupt Rating: 10 kAIC
  
• Wire Size Capacity: #10–1/0 AWG Copper/Aluminum
  
• Compatible Loadcenters: Eaton Type CH
  
• Required Panel Space: Two 3/4-Inch Spaces
  
• Dimensions: 1.5 in. D × 2.6 in. H × 3.3 in. W
  
• Weight: 0.55 lb
  
• Warranty: Limited Lifetime Residential; 1 Year Commercial
  

Material Compliance and Certifications

• UL 489 Listed
• HACR Rated
• Manufactured to meet applicable industry standards for branch circuit protection
• Designed for installation in approved Eaton Type CH loadcenters

Where It Works Best

The Eaton CHF240 is commonly used in:

• Eaton Type CH loadcenters
• Residential electrical panels
• Light commercial electrical systems
• HVAC equipment and air conditioning systems
• Heat pumps
• Electric water heaters
• Dedicated appliance circuits
• Workshops and garage subcircuits
• 120/240V branch circuit applications
• Electrical maintenance and replacement projects
• Installations requiring a 40 Amp two-pole common-trip breaker