FI36040 - 40 Amp Circuit Breaker

FI36040 - 40 Amp Circuit Breaker

When your circuit breaker needs to be replaced in an existing electrical distribution system, finding the correct match is usually the priority. The goal is often to keep the original equipment in service while restoring the proper protection and functionality. The Square D FI36040 I-Line I-Limiter Circuit Breaker is a 40 Amp, 3-pole molded case circuit breaker designed for compatible I-Line applications where the right frame type, mounting style, and electrical ratings are required.

Key Features and Benefits

• Square D FI36040 I-Line I-Limiter molded case circuit breaker
• 40 Amp current rating
• Three-pole design for three-phase electrical systems
• Thermal magnetic trip protection
• Current-limiting circuit breaker design
• I-Line plug-in mounting configuration
• Designed for compatible Square D I-Line equipment
• Helps protect conductors and connected equipment during fault conditions
• High interrupting ratings for specified electrical applications
• Maintains existing equipment configuration in replacement applications
• Built to last in commercial and industrial environments
• Suitable for electrical maintenance and replacement projects
  

Technical Specifications

• Catalog Number: FI36040
  
• Manufacturer: Square D
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: FI
  
• Breaker Type: I-Line I-Limiter
  
• Trip Unit Technology: Thermal-Magnetic
  
• Amperage Rating: 40 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 600VAC
  
• Mounting Style: I-Line Plug-In
  
• Protection Type: Current Limiting
  
• A.I.C. Rating:
  • 100kA at 600VAC
  • 200kA at 480VAC
  • 200kA at 240VAC
• Dimensions: 4.50 in. W × 10.50 in. L × 4.38 in. D
  
• Approximate Ship Weight: 11.00 lbs.
  

Material Compliance and Certifications

The Square D FI36040 I-Line I-Limiter Circuit Breaker is intended for use in compatible electrical distribution equipment and should be installed according to the National Electrical Code (NEC), applicable local electrical requirements, and accepted safety practices.

Where It Works Best

• Square D I-Line panelboards and switchboards
• Commercial electrical distribution systems
• Industrial facilities
• Manufacturing plants
• Three-phase branch circuit protection
• Equipment distribution systems
• Electrical rooms and power distribution areas
• Existing FI frame I-Line installations
• Applications requiring current-limiting protection