FC34045 - 45 Amp Circuit Breaker

FC34045 - 45 Amp Circuit Breaker

Even if two circuit breakers appear similar, matching the correct specifications is essential before installing a replacement. Be sure to verify the catalog (part) number, breaker type, frame, amperage, number of poles, voltage rating, interrupt rating (A.I.C.), dimensions, and terminal configuration to ensure compatibility with your existing electrical system.

The FC34045 is a 45 Amp, 3-pole Type FC thermal-magnetic molded case circuit breaker designed for use in compatible I-Line panelboards. Its thermal-magnetic trip mechanism provides two levels of circuit protection. The thermal element responds to overload conditions that develop gradually, while the magnetic element reacts almost instantly when a short circuit occurs. This combination helps protect your conductors and connected equipment while preserving the intended operation of the existing electrical distribution system.

Key Features and Benefits

• 45 Amp continuous current rating
• Three-pole configuration for three-phase electrical distribution
• Type FC molded case circuit breaker
• Thermal-magnetic trip unit responds to both overloads and short circuits
• Compatible with I-Line panelboards
• HACR Type classification
• Rated for 60Hz electrical systems
• Suitable for operation in ambient temperatures up to 40°C
• Designed to maintain the original form, fit, and function when replacing a compatible Type FC breaker
• Built to last
  

Technical Specifications

• Part Number: FC34045
  
• Product Type: Molded Case Circuit Breaker
  
• Breaker Type: FC
  
• Trip Type: Thermal-Magnetic
  
• Amperage: 45 Amps
  
• Poles: 3
  
• Frequency: 60Hz
  
• Voltage Ratings:
  • 480VAC
  • 240VAC
• Interrupt Rating (A.I.C.):
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• HACR Rated: Yes
  
• Ambient Temperature Rating: 40°C
  
• Application: For compatible I-Line Panelboards
  
• Dimensions: 4.50" W × 8.75" H × 4.38" D
  
• Approximate Shipping Weight: 7.50 lbs.
  

Material Compliance and Certifications

• Before installation, verify that the catalog number, breaker type, frame, amperage, pole count, voltage rating, interrupt rating (A.I.C.), dimensions, and terminal configuration match the existing breaker.
• The FC34045 is identified as HACR Type according to the available product specifications. Installation should be completed in accordance with the National Electrical Code (NEC), applicable local electrical codes, and the original equipment manufacturer's requirements.
• No additional certifications beyond the provided product specifications are stated.
  

Where It Works Best

The FC34045 is well suited for replacing a compatible breaker in I-Line panelboards found in commercial buildings, industrial facilities, manufacturing plants, institutional properties, and other existing electrical distribution systems. It is a practical choice for maintenance projects where preserving the original system configuration is important.