FAP34045 - 45 Amp Circuit Breaker

FAP34045 - 45 Amp Circuit Breaker

In many electrical systems, the breaker isn't replaced because the equipment has changed—it's replaced because the original breaker has reached the end of its service life. When that happens, finding a replacement with the same ratings and configuration helps you keep the system operating as intended without unnecessary modifications. The FAP34045 is a 45 Amp, 3-pole molded case circuit breaker designed for 480V AC applications and is commonly used to maintain existing commercial and industrial electrical equipment.

This breaker uses a thermal-magnetic trip unit, combining long-time overload protection with instantaneous protection against short circuits. Its unit-mount construction, line terminals, and load lug connections allow it to fit compatible installations while preserving the original form, fit, and function of the equipment.

Key Features and Benefits

• 45 Amp current rating
• Three-pole molded case circuit breaker for three-phase systems
• Thermal-magnetic trip unit for overload and short-circuit protection
• Unit-mount design for compatible equipment
• Line terminal and load lug connections
• Breaking capacity code A
• Helps maintain the original form, fit, and function of existing electrical systems
• Built to last for long-term service

Technical Specifications

• Catalog Number: FAP34045
  
• Product Type: Molded Case Circuit Breaker
  
• Current Rating: 45 Amps
  
• Voltage Rating: 480V AC
  
• Number of Poles: 3
  
• Trip Unit: Thermal-Magnetic
  
• Breaking Capacity Code: A
  
• Mounting Style: Unit Mount
  
• Line Connection: Line Terminal
  
• Load Connection: Load Lugs
  
• Terminal Identifier: AL100FA
  
• Magnetic Hold Current: 400 Amps
  
• Magnetic Tripping Current: 850 Amps
  
• Phase: ABC
  
• Dimensions: 6.4 in. H × 4.5 in. W × 4.13 in. D
  
• Country of Origin: Mexico
  
• Warranty: 18 Months
  

Material Compliance and Certifications

• UL Listed
• CSA Certified 
• HACR Rated

Where It Works Best

The FAP34045 is commonly used as a replacement breaker in commercial buildings, manufacturing facilities, industrial plants, mechanical rooms, panelboards, switchboards, HVAC equipment, and other three-phase power distribution systems.