FJA34040 - 40Amp Circuit Breaker

FJA34040 - 40Amp Circuit Breaker

Replacing a breaker in your existing electrical equipment is a specification-matching job, and the details matter. The FJA34040 circuit breaker is a 40-amp, three-pole molded case circuit breaker with an FJA I-Line frame, plug-in configuration, and PowerPact thermal-magnetic protection. For applications designed around this FJA configuration, the FJA34040 provides the required form, fit, and circuit-protection function in a durable molded case.

Key Features and Benefits

• 40-Amp Rating: Provides the specified 40A current rating for compatible electrical distribution applications.
• Three-Pole Configuration: Built with three poles to match equipment designed around this breaker arrangement.
• FJA I-Line Frame: The FJA type and I-Line frame provide important identification details when checking replacement compatibility.
• Plug-In Configuration: Uses the specified plug-in connection method for equipment designed to accept this breaker style.
• Thermal-Magnetic Protection: Features the supplied PowerPact thermal-magnetic protection configuration.

Technical Specifications

• Part Number: FJA34040
  
• Type: FJA
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: FJA I-Line
  
• Amperage: 40A
  
• Poles: 3
  
• Connection / Mounting: Plug-In
  
• Protection / Trip Type: PowerPact Thermal Magnetic
  
• A.I.C. Rating at 480VAC: 65 kA
  
• A.I.C. Rating at 240VAC: 100 kA
  
• Width: 3.00 in.
  
• Height / Length: 9.75 in.
  
• Depth: 5.25 in.
  
• Overall Dimensions: 3.00" W × 9.75" L × 5.25"D
  

Material Compliance and Certifications

The supplied specifications for the FJA34040 did not include specific UL, CSA, RoHS, REACH, or other certification or material-compliance information. These details should not be inferred from the FJA designation or from specifications associated with similar breakers.

Where It Works Best

The FJA34040 40A circuit breaker is intended for compatible legacy electrical distribution equipment requiring the same FJA I-Line frame, three-pole arrangement, plug-in connection, physical footprint, and electrical characteristics. It's a practical fit for maintenance and replacement projects where maintaining the existing breaker's form, fit, and function is the priority.