FB3020L - 20Amp Circuit Breaker

FB3020L - 20Amp Circuit Breaker

Finding the right replacement breaker for existing equipment is about more than matching the amperage. The FB3020L is a 20 Amp, 3-pole FB thermal-magnetic circuit breaker intended for use in compatible legacy electrical systems where maintaining the original configuration matters. Whether you're replacing a failed unit during an unexpected outage or performing scheduled preventative maintenance, this breaker offers the form, fit, and functional replacement needed to help keep existing equipment operating as intended without unnecessary modifications.

Key Features and Benefits

• Form, fit, and functional replacement for compatible FB electrical systems
• 20 Amp, 3-pole thermal-magnetic circuit breaker
• Thermal trip helps protect against sustained overload conditions
• Magnetic trip responds quickly to short-circuit faults
• Factory-installed non-interchangeable trip unit
• Interrupting ratings of 14kA @ 480VAC and 25kA @ 240VAC
• Rated for operation in ambient temperatures up to 40°C
• Includes both line-side and load-side terminals

Technical Specifications

• Part Number: FB3020L
  
• Type: FB
  
• Circuit Breaker Type: Thermal-Magnetic
  
• Amperage: 20 Amps
  
• Poles: 3
  
• Interrupting Rating: 14kA @ 480VAC; 25kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Ambient Rating: 40°C
  
• Line-Side Terminals: Included
  
• Load-Side Terminals: Included
  
• Dimensions:
  • Height: 6.00 in.
  • Width: 4.13 in.
  • Depth: 3.38 in.
• Dimensions: 4.13 in. W × 6.00 in. H × 3.38 in. D
  
• Approximate Shipping Weight: 5.50 lbs.
  

Material Compliance and Certifications

No material compliance or certification information has been provided for the FB3020L. Before installation, verify that the breaker's electrical ratings, dimensions, terminal configuration, and application are compatible with the equipment being serviced. Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC), applicable local electrical codes, and the equipment manufacturer's requirements.

Where It Works Best

The FB3020L is well suited for compatible FB panelboards and electrical distribution equipment found in commercial buildings, manufacturing facilities, institutional properties, warehouses, and industrial plants that continue to rely on legacy electrical infrastructure. It is commonly used on three-phase branch circuits serving motors, HVAC systems, pumps, compressors, lighting panels, and general power distribution where maintaining compatibility with the original equipment is essential.