FA24040AB - 40 Amp Circuit Breaker

FA24040AB - 40 Amp Circuit Breaker

If you're replacing a compatible FA-frame circuit breaker, the FA24040AB is built to match the original form, fit, and function of your existing electrical system. Rated at 40 Amps with a 2-pole configuration, this molded case circuit breaker is designed for use in compatible I-Line panelboards and switchboards featuring an A-B phase arrangement. Its thermal-magnetic trip mechanism responds to both prolonged overloads and sudden short circuits, helping protect connected equipment and branch circuits under normal operating conditions.

Key Features and Benefits

• 40 Amp current rating
• 2-pole molded case circuit breaker
• FA frame design
• Thermal-magnetic trip protection for overload and short-circuit conditions
• I-Line plug-in mounting style
• A-B phase configuration
• HACR Type rated
• Designed for 60Hz electrical systems
• Rated for operation in ambient temperatures up to 40°C
• Form, fit, and functional replacement for compatible FA-frame equipment
• Built to last for continued service in existing electrical systems
  

Technical Specifications

• Part Number: FA24040AB
  
• Frame Type: FA
  
• Product Type: Molded Case Circuit Breaker
  
• Amperage: 40 Amps
  
• Poles: 2
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Rating: 18kA @ 480VAC; 25kA @ 240VAC
  
• Frequency: 60Hz
  
• Mounting Style: I-Line Plug-In
  
• Phase Configuration: A-B
  
• HACR Rated: Yes
  
• Ambient Temperature Rating: 40°C
  
• Dimensions:
  • Width: 3.00 in.
  • Height: 8.75 in.
  • Depth: 4.38 in.
• Approximate Shipping Weight: 6.25 lbs.
  

Material Compliance and Certifications

The FA24040AB is intended for use in compatible FA-frame I-Line electrical distribution equipment that matches its electrical ratings and mounting configuration. It is HACR Type rated for applicable HVAC and refrigeration installations. Before installation, verify compatibility with the existing equipment and follow all manufacturer recommendations, the National Electrical Code (NEC), and applicable local electrical codes.

Where It Works Best

The FA24040AB is commonly found in existing electrical distribution systems serving:

• Commercial buildings
• Industrial facilities
• Manufacturing plants
• Office buildings
• Schools and universities
• Hospitals and healthcare facilities
• Warehouses
• Compatible I-Line panelboards
• Compatible I-Line switchboards
• HVAC and refrigeration equipment requiring an HACR-rated circuit breaker