FA34045 - 45 Amp Circuit Breaker

FA34045 - 45 Amp Circuit Breaker

The FA34045 is a 45-amp, 3-pole thermal-magnetic molded-case circuit breaker used in compatible I-Line panelboards. When you're replacing a breaker in an existing electrical system, getting the details right matters. The amperage rating, pole configuration, interrupting capacity, and panel compatibility all need to line up with the original equipment. This FA Series breaker is intended for applications where maintaining the existing installation is the priority. The thermal-magnetic trip unit protects against both overloads and short circuits by responding to different fault conditions. Built to last, this molded-case circuit breaker provides the electrical characteristics and fit required to keep compatible FA Series I-Line panelboard systems in service.

Key Features and Benefits

• 45 Amp current rating
• Three-pole configuration for compatible three-phase applications
• FA Series thermal magnetic molded case circuit breaker
• Thermal magnetic trip protection for overload and short-circuit conditions
• 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: FA34045
  
• Type: FA
  
• Product Type: Thermal Magnetic Molded Case Circuit Breaker
  
• Amperage Rating: 45 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC / 480VAC
  
• Interrupting Rating: 25kA @ 240VAC; 18kA @ 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 FA34045 is intended for use in FA Series I-Line panelboards where the breaker ratings and physical configuration match the existing equipment. Before installation, confirm the amperage, voltage rating, interrupting capacity, pole count, mounting requirements, and HACR classification 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 equipment
• Industrial facilities
• Manufacturing plants
• HVAC and refrigeration equipment requiring HACR-rated protection
• Three-phase electrical distribution systems
• Maintenance and repair of existing electrical installations
• Legacy systems where matching the original breaker specifications is important