FI36020 - 20 Amp Circuit Breaker

FI36020 - 20 Amp Circuit Breaker

When your facility relies on existing electrical distribution equipment, replacing a circuit breaker is about finding the right match—not changing the entire system. The Square D FI36020 I-Line I-Limiter Circuit Breaker is a 20 Amp, 3-pole molded case circuit breaker designed for compatible I-Line applications where correct fit, connection style, and protection characteristics are important. With its I-Line plug-in design, current-limiting capability, and thermal-magnetic protection, this breaker is intended to maintain existing electrical systems while keeping the original equipment configuration intact.

Key Features and Benefits

• Square D FI36020 I-Line I-Limiter molded case circuit breaker
• 20 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
• High interrupting ratings for specified electrical applications
• Helps protect conductors and connected equipment during fault conditions
• Maintains original equipment configuration in replacement applications
• Built to last for commercial and industrial environments
• Suitable for electrical maintenance and replacement projects
  

Technical Specifications

• Catalog Number: FI36020
  
• 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: 20 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 FI36020 I-Line I-Limiter Circuit Breaker is intended for use in compatible electrical distribution equipment and should be installed according to applicable electrical standards, including the National Electrical Code (NEC) and local requirements. Installation, inspection, and maintenance should be performed by qualified electrical personnel following proper safety procedures.

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
• Motor and machinery applications
• Electrical rooms and power distribution areas
• Replacement of existing FI frame I-Line breakers
• Applications requiring current-limiting circuit protection
• Maintenance projects where matching existing equipment is important