FA26040AC **Old Style** - 40 Amp Circuit Breaker

FA26040AC **Old Style** - 40 Amp Circuit Breaker

If you're replacing an existing FA26040AC Old Style breaker, it's important to match the original specifications. This 40 Amp, 2-pole molded case circuit breaker is designed for use in compatible I-Line plug-in panelboards and features the original A-C phase configuration. It uses a thermal-magnetic trip mechanism that responds to both overloads and short circuits, helping to protect connected equipment and branch circuits during normal operation.

With an interrupting rating of 25kA at 240VAC and 18kA at 480VAC, this breaker is intended for 60Hz electrical systems and carries a HACR Type classification for compatible heating, ventilation, air conditioning, and refrigeration applications. The Old Style design is an important detail when replacing an existing breaker, since the physical configuration should match the equipment already installed.

Key Features and Benefits

• 40 Amp current rating
• Two-pole design
• FA frame molded case circuit breaker
• Old Style configuration
• I-Line plug-in mounting
• A-C phase arrangement
• Thermal magnetic trip mechanism
• HACR Type rated
• Designed for 60Hz systems
• Rated for operation in ambient temperatures up to 40°C
• Form, fit, and functional replacement for compatible FA-frame installations
• Built to last in commercial and industrial electrical systems
  

Technical Specifications

• Part Number: FA26040AC Old Style
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: FA
  
• Style: Old Style
  
• Amperage: 40 Amps
  
• Poles: 2
  
• Trip Type: Thermal Magnetic
  
• A.I.C. Rating: 25kA @ 240VAC; 18kA @ 480VAC
  
• Mounting Style: I-Line Plug-In
  
• Phase: A-C
  
• Frequency: 60Hz
  
• Ambient Temperature: 40°C
  
• HACR Rated: Yes
  
• Dimensions:
  • 3.00 in. W × 8.75 in. H × 4.38 in. D
• Approximate Shipping Weight: 6.25 lbs.
  

Material Compliance and Certifications

The FA26040AC Old Style is intended for use in compatible FA-frame I-Line panelboards that match its electrical and mechanical specifications. Installation should always be completed by qualified personnel in accordance with the National Electrical Code (NEC), local electrical codes, and the equipment manufacturer's requirements.

Where It Works Best

• Existing I-Line panelboards
• Commercial buildings
• Industrial facilities
• Manufacturing plants
• HVAC and refrigeration equipment
• Branch circuit protection
• Maintenance and repair of legacy electrical systems
• Applications requiring a form, fit, and functional replacement