FB3020 - 20Amp Circuit Breaker

FB3020 - 20Amp Circuit Breaker

When you're maintaining an existing FB electrical system, using a replacement breaker that matches the original specifications can save time and help keep the equipment operating the way it was intended. The FB3020 is a 20 Amp, 3-pole thermal-magnetic circuit breaker built for compatible FB installations where preserving the original configuration is the priority. Whether you're replacing a breaker during scheduled maintenance or restoring service after a failure, choosing the correct form, fit, and functional replacement helps avoid unnecessary changes to the electrical system.

The thermal-magnetic trip mechanism provides dependable circuit protection by responding to two different fault conditions. The thermal element reacts to overloads that develop over time, while the magnetic element trips almost instantly during short-circuit events.

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 circuits from sustained overload conditions
• Magnetic trip responds rapidly to short-circuit faults
• Factory-installed non-interchangeable trip unit
• Rated for operation in ambient temperatures up to 40°C
• Includes load terminals
• Built to last for ongoing maintenance and replacement applications

Technical Specifications

• Part Number: FB3020
  
• 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
  
• Load 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 FB3020. Before installation, verify that the breaker's electrical ratings, dimensions, and terminal configuration are compatible with the equipment being serviced. Installation should be completed by a qualified electrician in accordance with the National Electrical Code (NEC), applicable local codes, and the equipment manufacturer's requirements.

Where It Works Best

The FB3020 is commonly used in compatible FB panelboards and electrical distribution equipment serving commercial buildings, industrial facilities, manufacturing plants, schools, healthcare facilities, and other properties with legacy electrical systems. It's a practical choice for three-phase branch circuits supplying motors, HVAC equipment, pumps, lighting systems, compressors, and general power distribution where maintaining the original equipment configuration is important.