FA24040BC **Old Style** - 40 Amp Circuit Breaker

FA24040BC **Old Style** - 40 Amp Circuit Breaker

When your circuit breaker needs to be replaced, the most important thing is getting one that matches the original equipment. The FA24040BC Old Style is a 40 Amp, 2-pole thermal-magnetic molded case circuit breaker designed for compatible FA-frame I-Line panelboards and switchboards using a B-C phase connection. With its I-Line plug-in design, it installs into the appropriate equipment without requiring modifications, making it a practical choice for maintaining existing electrical distribution systems.

Its thermal-magnetic trip unit responds to both prolonged overloads and short-circuit conditions, helping protect connected equipment and branch circuits during normal operation.

Key Features and Benefits

• 40 Amp current rating
• Two-pole configuration
• FA frame molded case circuit breaker
• Old Style design
• Thermal-magnetic trip mechanism
• I-Line plug-in mounting
• B-C phase configuration
• 18kA interrupting rating at 240VAC
• 14kA interrupting rating at 480VAC
• HACR Type rated
• Designed for 60Hz systems
• Rated for operation in ambient temperatures up to 40°C
• Form, fit, and functional replacement for compatible equipment
• Built to last for continued service in existing electrical systems
  

Technical Specifications

• Part Number: FA24040BC Old Style
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: FA
  
• Amperage: 40 Amps
  
• Poles: 2
  
• Trip Type: Thermal-Magnetic
  
• Interrupting Rating: 18kA @ 240VAC; 14kA @ 480VAC
  
• Voltage: 240VAC / 480VAC
  
• Frequency: 60Hz
  
• Mounting Style: I-Line Plug-In
  
• Phase: B-C
  
• HACR Rated: Yes
  
• Ambient Rating: 40°C
  
• Dimensions:
  • Width: 3.00"
  • Height: 8.75"
  • Depth: 4.38"
• Approximate Shipping Weight: 6.25 lbs.
  

Material Compliance and Certifications

The FA24040BC Old Style is an HACR Type molded case circuit breaker intended for use in compatible FA-frame I-Line electrical distribution equipment. Before installation, verify that the frame type, amperage, interrupting capacity, mounting configuration, and phase arrangement match the original equipment requirements. Installation should always follow the National Electrical Code (NEC), the equipment manufacturer's instructions, and applicable local electrical codes.

Where It Works Best

This breaker is commonly found in existing commercial and industrial electrical systems, including:

• I-Line panelboards
• I-Line switchboards
• Commercial facilities
• Manufacturing plants
• Warehouses
• Office buildings
• Schools and universities
• Healthcare facilities
• HVAC and refrigeration equipment requiring an HACR Type breaker