FB2100 - 100Amp Circuit Breaker

FB2100 - 100Amp Circuit Breaker

When your compatible FB breaker needs to be replaced, finding one that matches the original equipment can save time and eliminate unnecessary modifications. The FB2100 is a 100 Amp, 2-pole thermal-magnetic circuit breaker built for legacy FB systems where maintaining the existing panel configuration is the priority. It serves as a form, fit, and functional replacement, making it a practical choice for maintenance work, repairs, or scheduled equipment servicing. Inside, the thermal trip responds to overloads that develop over time, while the magnetic trip reacts almost instantly to short circuits.

Key Features and Benefits

• Form, fit, and functional replacement for compatible FB electrical systems
• 100 Amp, 2-pole thermal-magnetic protection
• Thermal trip helps guard against sustained overload conditions
• Magnetic trip responds quickly to short-circuit faults
• Non-interchangeable trip unit with factory-set protection
• Interrupting ratings of 14kA at 480VAC and 25kA at 240VAC
• Rated for operation in ambient temperatures up to 40°C
• Includes load terminals for compatible installations
• Built to last in commercial and industrial environments

Technical Specifications

• Part Number: FB2100
  
• Type: FB
  
• Circuit Breaker Type: Thermal-Magnetic
  
• Amperage: 100 Amps
  
• Poles: 2
  
• Interrupting Rating: 14kA @ 480VAC; 25kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Ambient Rating: 40°C
  
• Load Terminals: Included
  
• Dimensions: 2.75 in. W × 6.00 in. H × 3.38 in. D
  
• Approximate Shipping Weight: 4.00 lbs.
  

Material Compliance and Certifications

No material compliance or certification information has been provided for the FB2100. Before installation, confirm compatibility with the existing electrical equipment, including amperage, pole configuration, interrupting capacity, and physical dimensions. Installation should always be completed by a qualified electrician and in accordance with the National Electrical Code (NEC), local regulations, and the equipment manufacturer's requirements.

Where It Works Best

The FB2100 is commonly used in commercial buildings, industrial facilities, schools, hospitals, and other properties that continue to operate compatible FB distribution equipment. It's well suited for branch circuits serving HVAC systems, motors, pumps, lighting, machinery, and general power distribution where matching the original breaker specifications is essential for maintenance and replacement work.