FDA34045 - 45Amp Circuit Breaker

FDA34045 - 45Amp Circuit Breaker

Finding the right replacement breaker for an existing electrical system usually comes down to matching the details that matter most—amperage, pole configuration, connection style, and electrical ratings. The FDA34045 Square D circuit breaker is a 45 Amp, 3-pole molded case circuit breaker designed for compatible I-Line electrical distribution equipment.

Whether you are maintaining an existing electrical panel, replacing a matching breaker, or servicing a legacy distribution system, the FDA34045 I-Line circuit breaker provides a practical solution. Built to last in its intended applications, it delivers the correct connection style, ratings, and protection features needed to help keep established electrical systems operating as designed.

Key Features and Benefits

• 45 Amp, 3-pole Square D molded case circuit breaker
• Designed for compatible I-Line electrical distribution equipment
• PowerPact™ thermal magnetic trip unit provides overload and short-circuit protection
• Plug-in I-Line connection style for matching applications
• Helps maintain original breaker form, fit, and function
• Designed for existing commercial and industrial electrical systems
• Suitable for branch circuit and feeder protection applications
  

Technical Specifications

• Part Number: FDA34045
  
• Manufacturer: Square D
  
• Product Type: Molded Case Circuit Breaker (MCCB)
  
• Breaker Type: FDA
  
• Frame Type: I-Line Frame
  
• Trip Unit Type: Thermal Magnetic
  
• Amperage Rating: 45 Amps
  
• Number of Poles: 3
  
• Connection Type: Plug-In I-Line
  
• A.I.C. Rating:
  • 18kA at 480VAC
  • 25kA at 240VAC
• Height: 9.75 in
  
• Width: 3.0 in
  
• Depth: 5.25 in
  

Material Compliance and Certifications

The Square D FDA34045 molded case circuit breaker is designed for use in compatible electrical distribution equipment requiring thermal magnetic circuit protection. Its construction and electrical ratings are intended for approved applications and established electrical system requirements.

Where It Works Best

• Square D I-Line panelboards and compatible distribution equipment
• Existing PowerPact™ electrical systems
• Commercial electrical distribution applications
• Industrial power distribution systems
• Branch circuit and feeder protection applications
• Electrical maintenance and replacement projects
• Systems requiring a 45 amp, 3-pole plug-in breaker