FAL340501021 - 50 Amp Circuit Breaker

FAL340501021 - 50 Amp Circuit Breaker

The right replacement breaker needs to match more than just the amperage. The Square D FAL340501021 is a 50-amp, 3-pole FA Series molded-case circuit breaker with a factory-installed shunt trip for compatible 480V applications where remote breaker operation is required. This model is commonly used when maintaining an existing electrical system, and replacing a breaker with the same configuration is preferred over changing the panel setup or control wiring.

The breaker uses a thermal-magnetic trip unit to handle both overload and short-circuit conditions. If your circuit stays overloaded for too long, the thermal element responds. If a sudden fault occurs, the magnetic trip reacts quickly to interrupt the circuit. The built-in shunt trip allows the breaker to be opened remotely through a connected control circuit, which is useful in systems that include emergency shutdown functions or other remote disconnect requirements.

Key Features and Benefits

• 50 Amp current rating
• Three-pole FA Series molded case circuit breaker
• Factory-installed shunt trip for remote breaker operation
• Thermal-magnetic protection for overload and short-circuit conditions
• 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: FAL340501021
  
• Series: FA
  
• Product Type: Molded Case Circuit Breaker with Shunt Trip
  
• Current Rating: 50 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 480 VAC
  
• Trip Unit Technology: Thermal-Magnetic
  
• Factory Accessory: Shunt Trip
  
• Breaking Capacity Code: A
  
• Mounting Mode: Unit Mount
  
• Electrical Connections:
  • Line Lugs
  • Load Lugs
• Terminal Identifier: AL100FA
  
• Phase Connection: ABC
  
• Magnetic Hold Current: 400 A
  
• Magnetic Tripping Current: 850 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 FAL340501021 is UL Listed and CSA Certified for use in applicable molded-case circuit breaker installations. It is also HACR rated for qualifying heating, ventilation, air conditioning, and refrigeration equipment. Before installation, verify that the breaker ratings, pole configuration, mounting style, terminal connections, and shunt trip requirements match the equipment being serviced. Install according to the National Electrical Code (NEC) and applicable local electrical codes.

Where It Works Best

• Commercial electrical distribution panels
• Industrial facilities
• Manufacturing equipment
• HVAC systems
• Refrigeration equipment
• Three-phase branch circuits
• Systems requiring remote breaker tripping