FB2100L - 100Amp Circuit Breaker

FB2100L - 100Amp Circuit Breaker

When your breaker fails in an existing panel, the priority is getting the right replacement so the system can be returned to service with confidence. The FB2100L is a 100 Amp, 2-pole FB thermal-magnetic circuit breaker intended for use in compatible legacy electrical distribution equipment. Rated for 14kA at 480VAC and 25kA at 240VAC, it is suitable for a wide range of commercial and industrial applications where compatible FB breakers are already in service. The breaker is also rated for 40°C operation and ships with both line and load-side terminals included, making it ready for installation in compatible equipment.

Key Features and Benefits

• Form, fit, and functional replacement for compatible FB breaker installations
• 100 Amp, 2-pole configuration for higher-capacity branch circuits
• Thermal element responds to overload conditions before wiring can overheat
• Magnetic trip reacts almost instantly during short-circuit events
• Non-interchangeable trip unit maintains the original factory protection settings
• Includes both line and load-side terminals
• 40°C ambient temperature rating
• Interrupting capacity of 14kA at 480VAC and 25kA at 240VAC
• Built to last in demanding commercial and industrial environments

Technical Specifications

• Part Number: FB2100L
  
• 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
  
• Line Terminals: Included
  
• 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 this product. Confirm that the breaker's electrical ratings, dimensions, and terminal configuration match your equipment before installation. Installation should 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 FB2100L is commonly used in facilities that continue to operate compatible FB distribution equipment. It is a practical replacement for branch circuits serving HVAC equipment, motor loads, pumps, lighting systems, machinery, and general power distribution in commercial buildings, manufacturing facilities, institutional properties, and similar environments where maintaining the original electrical system is important.