FA34100 **Old Style** - 100 Amp Circuit Breaker

FA34100 **Old Style** - 100 Amp Circuit Breaker

The FA34100 Old Style is a 100 Amp, 3-pole thermal magnetic molded case circuit breaker used in compatible I-Line panelboards. When you're working with existing electrical distribution equipment, matching the original breaker specifications is important for keeping the system configuration consistent. This FA Series breaker is intended for applications where the same amp rating, three-pole arrangement, and panel compatibility are required. The thermal-magnetic trip mechanism responds to both overload conditions and short circuits, helping to protect connected circuits during normal operation.

Key Features and Benefits

• 100 Amp current rating
• Three-pole configuration for compatible three-phase applications
• FA Series Old Style thermal magnetic molded case circuit breaker
• Thermal magnetic trip mechanism for overload and short-circuit protection
• HACR Type rated for qualifying HVAC and refrigeration applications
• Suitable for compatible I-Line panelboard installations
• Rated for 60Hz electrical systems
• Suitable for 40°C (104°F) ambient operating conditions
• Matches original breaker ratings and installation requirements
• Molded case construction built to last for continued service

Technical Specifications

• Part Number: FA34100 Old Style
  
• Type: FA
  
• Product Type: Thermal Magnetic Molded Case Circuit Breaker
  
• Amperage Rating: 100 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC / 480VAC
  
• Interrupting Rating: 18kA @ 240VAC; 14kA @ 480VAC
  
• Frequency: 60Hz
  
• Application: I-Line Panelboards
  
• Trip Unit: Thermal Magnetic
  
• HACR Rated: Yes
  
• Ambient Temperature Rating: 40°C (104°F)
  
• Dimensions:
  • 4.50" W × 8.75" H × 4.38" D
• Approximate Shipping Weight: 7.50 lbs.
  

Material Compliance and Certifications

The FA34100 Old Style is intended for use in compatible FA Series I-Line panelboards where the breaker ratings and physical configuration match the existing installation. Before installation, verify the amperage, voltage rating, interrupting capacity, pole configuration, mounting style, and HACR requirements for the application. Installation should be completed by qualified electrical personnel in accordance with the National Electrical Code (NEC), applicable local electrical codes, and manufacturer guidelines.

Where It Works Best

• FA Series I-Line panelboards
• Commercial electrical distribution systems
• Industrial facilities
• Manufacturing environments
• HVAC and refrigeration equipment requiring HACR-rated protection
• Three-phase electrical distribution applications
• Electrical maintenance and repair projects
• Existing installations where matching the original breaker specifications is important
• Applications requiring the original form, fit, and function of a compatible FA34100 Old Style circuit breaker