FB1020L - 20Amp Circuit Breaker

FB1020L - 20Amp Circuit Breaker

When your electrical system is down for maintenance, having the correct replacement breaker can make all the difference. A breaker that matches the original equipment helps avoid unnecessary modifications and keeps repair work moving forward.

The FB1020L is a 20 Amp, 1-pole molded case circuit breaker featuring a thermal-magnetic, non-interchangeable trip unit that provides protection against both sustained overloads and short circuits.

Key Features and Benefits

• 20 Amp continuous current rating
• Single-pole molded case circuit breaker
• Thermal-magnetic trip mechanism provides protection against overloads and short circuits
• Non-interchangeable trip unit maintains the factory-configured trip characteristics
• Rated for operation in 40°C ambient conditions
• Includes both line and load-side terminals
• Compact dimensions help maintain compatibility with existing equipment
• Supports preserving the original form, fit, and function during maintenance and repairs
• Built to last for long-term service in compatible electrical systems

Technical Specifications

• Part Number: FB1020L
  
• Type: FB
  
• Current Rating: 20 Amps
  
• Poles: 1
  
• Trip Unit: Non-Interchangeable
  
• Trip Technology: Thermal-Magnetic
  
• Interrupting Rating:
  • 14kA @ 277VAC
  • 25kA @ 120VAC
• Ambient Rating: 40°C
  
• Terminals Included: Line and Load-Side Terminals
  
• Dimensions:
  • Height: 6.00 in.
  • Width: 1.38 in.
  • Depth: 3.38 in.
• Dimensions: 1.38"W × 6.00"H × 3.38"D
  
• Approximate Shipping Weight: 3.00 lbs.
  

Material Compliance and Certifications

Certification information was not provided in the available manufacturer specifications. Before replacing an existing circuit breaker, verify the ampere rating, voltage rating, pole configuration, terminal arrangement, mounting method, and physical dimensions to help ensure compatibility with the installed equipment.

Where It Works Best

The FB1020L is commonly used in compatible panelboards, switchboards, and electrical distribution equipment where a 20 Amp, single-pole thermal-magnetic circuit breaker is required. It is well suited for routine maintenance, equipment repairs, and planned shutdowns in office buildings, schools, warehouses, manufacturing facilities, and institutional buildings.