FA24100AB - 100 Amp Circuit Breaker

FA24100AB - 100 Amp Circuit Breaker

If you're replacing an existing FA24100AB, matching the original breaker is usually the easiest way to keep an I-Line distribution system unchanged. This 100 Amp, two-pole molded case circuit breaker is designed for compatible I-Line plug-in panelboards, making it a practical choice for maintenance work, equipment repairs, and panel restoration where the original breaker style needs to be maintained.

Inside, the breaker uses a thermal magnetic trip mechanism that responds to both prolonged overloads and short-circuit conditions. This style of protection has been widely used in commercial and industrial electrical systems for many years because it provides dependable circuit protection while remaining straightforward to service and replace.

Key Features and Benefits

• 100 Amp two-pole molded case circuit breaker
• FA frame for compatible I-Line distribution equipment
• Plug-in mounting for I-Line panelboards
• Thermal magnetic protection against overloads and short circuits
• Rated for 240VAC and 480VAC systems
• A-B phase configuration
• HACR Type rated
• Designed for 60Hz operation in 40°C ambient conditions
• Ideal for replacement and maintenance of existing electrical systems
  

Technical Specifications

• Catalog Number: FA24100AB
  
• Product Type: Thermal Magnetic Molded Case Circuit Breaker
  
• Type: FA
  
• Amperage Rating: 100 Amps
  
• Voltage Rating: 240VAC / 480VAC
  
• Frequency: 60Hz
  
• Poles: 2
  
• Interrupt Rating: 25kA @ 240VAC; 18kA @ 480VAC
  
• Mounting Style: I-Line Plug-In
  
• Phase Configuration: A-B Phase
  
• Trip Type: Thermal Magnetic
  
• HACR Rated: Yes
  
• Operating Ambient: 40°C
  
• Dimensions:
  • Width: 3.00 in
  • Height: 8.75 in
  • Depth: 4.38 in
• Weight: Approximately 6.25 lb
  

Material Compliance and Certifications

The FA24100AB is a thermal-magnetic molded-case circuit breaker intended for use in compatible I-Line electrical distribution equipment. It is designed for replacement and maintenance applications where matching the original frame, mounting style, phase configuration, and electrical ratings is important. Installation should always be performed by qualified electrical personnel in accordance with the National Electrical Code (NEC), manufacturer instructions, and all applicable local electrical codes.

Where It Works Best

• Compatible I-Line panelboards and distribution equipment
• Commercial and industrial electrical systems
• 240VAC and 480VAC branch circuits
• Feeder circuit protection
• HVAC and refrigeration equipment requiring HACR-rated protection
• Replacement of existing FA-frame circuit breakers
• Preventive maintenance and repair projects
• Applications where maintaining the original form, fit, and function is the primary goal