FA26050AB **Old Style** - 50 Amp Circuit Breaker

FA26050AB **Old Style** - 50 Amp Circuit Breaker

Keeping an existing electrical system in service starts with using replacement components that match the original specifications. The FA26050AB Old Style is a 50 Amp, 2-pole molded case circuit breaker built for compatible I-Line plug-in panelboards and features the original A-B phase configuration. If you're replacing an existing breaker in a legacy installation, this model provides the form, fit, and function needed to maintain the original panel layout without unnecessary modifications.

The thermal-magnetic trip mechanism responds to both overloads and short circuits, helping to protect branch circuits and connected equipment during normal operation.

Key Features and Benefits

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

Technical Specifications

• Part Number: FA26050AB Old Style
  
• Type: FA Molded Case Circuit Breaker
  
• Amperage: 50 Amps
  
• Poles: 2
  
• Trip Type: Thermal Magnetic
  
• A.I.C. Rating: 25kA @ 240VAC; 18kA @ 480VAC
  
• Mounting Style: I-Line Plug-In
  
• Phase: A-B
  
• 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 FA26050AB Old Style is intended for use in compatible FA-frame I-Line panelboards with matching electrical and mechanical specifications. Before installation, verify the amperage, interrupting rating, pole count, mounting style, frame type, and phase configuration to ensure compatibility with the existing equipment. This breaker is HACR Type rated for qualifying HVAC and refrigeration applications and should be installed by qualified personnel in accordance with the National Electrical Code (NEC), applicable local electrical codes, and the equipment manufacturer's installation requirements.

Where It Works Best

• Existing FA-frame I-Line panelboards
• Commercial buildings
• Industrial facilities
• Manufacturing plants
• Branch circuit protection
• HVAC and refrigeration equipment requiring HACR Type protection
• Maintenance and repair of legacy electrical systems
• Applications requiring a form, fit, and functional replacement
• Electrical distribution systems where the original Old Style configuration must be maintained