FAL34090 - 90 Amp Circuit Breaker

FAL34090 - 90 Amp Circuit Breaker

When you're working on an existing electrical system, finding the correct replacement breaker usually means matching the details already in place. The Square D FAL34090 is a 90 Amp, 3-pole FA Series molded case circuit breaker designed for compatible 480V applications where keeping the original equipment configuration matters. This breaker is commonly selected for maintenance and replacement projects aimed at restoring the system without changing the existing panel arrangement or wiring.

Key Features and Benefits

• 90 Amp FA Series molded case circuit breaker
• Three-pole design for compatible three-phase electrical systems
• Designed for 480V class applications
• Thermal-magnetic trip unit provides overload and short-circuit protection
• Unit-mount construction
• Line and load lug connections
• AL100FA terminal configuration
• HACR rated for qualifying HVAC and refrigeration applications
• Designed for compatible FA Series replacement applications
• Built to last for continued service in commercial and industrial environments

Technical Specifications

• Manufacturer: Square D
  
• Catalog Number: FAL34090
  
• Series: FA
  
• Product Type: Molded Case Circuit Breaker
  
• Current Rating: 90 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 480 VAC
  
• Trip Unit Technology: Thermal-Magnetic
  
• Breaking Capacity Code: A
  
• Mounting Style: Unit Mount
  
• Electrical Connections:
  • Line Lugs
  • Load Lugs
• Terminal Identifier: AL100FA
  
• Phase Connection: ABC
  
• Magnetic Hold Current: 900 A
  
• Magnetic Tripping Current: 1700 A
  
• Circuit Breaker Application: HACR Rated
  
• Dimensions:
  • Height: 6.4 in.
  • Width: 4.5 in.
  • Depth: 4.13 in.

Material Compliance and Certifications

The Square D FAL34090 is UL Listed and CSA Certified for applicable molded case circuit breaker installations. It is also HACR rated for qualifying heating, ventilation, air conditioning, and refrigeration equipment. Before replacing an existing breaker, verify that the amperage rating, voltage class, pole count, mounting style, and terminal connections match those of the equipment being serviced. Install according to the National Electrical Code (NEC) and applicable local electrical requirements.

Where It Works Best

• Commercial distribution panels
• Industrial electrical systems
• Manufacturing equipment
• HVAC and refrigeration equipment
• Three-phase branch circuits
• Compatible FA Series panelboards and switchboards