FB2090L - 90Amp Circuit Breaker

FB2090L - 90Amp Circuit Breaker

When your breaker fails, the priority is getting the electrical system back up and running with a replacement that fits correctly and matches the original ratings. The FB2090L is a 90 Amp, 2-pole FB thermal-magnetic circuit breaker made for compatible legacy electrical systems where maintaining the original equipment is important. It offers the same form, fit, and functional replacement needed for many existing FB installations, making it a practical choice for repairs, scheduled maintenance, and facility upgrades that focus on preserving the existing equipment—not changing it.

Key Features and Benefits

• 90 Amp, 2-pole FB circuit breaker for compatible legacy electrical systems
• Thermal-magnetic protection helps guard against overloads and short-circuit faults
• Non-interchangeable trip unit with fixed factory trip characteristics
• Includes both line- and load-side terminals
• Interrupting ratings of 14kA at 480VAC and 25kA at 240VAC
• Rated for operation in ambient temperatures up to 40°C
• Form, fit, and functional replacement for compatible FB applications

Technical Specifications

• Part Number: FB2090L
  
• Type: FB
  
• Product Type: Thermal-Magnetic Circuit Breaker
  
• Amperage: 90 Amps
  
• Poles: 2
  
• Interrupting Rating: 14kA @ 480VAC; 25kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Ambient Rating: 40°C
  
• Terminals: Line- and load-side terminals included
  
• Dimensions:
  • Height: 6.00 in.
  • Width: 2.75 in.
  • Depth: 3.38 in.
• 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 information or third-party certifications have been provided for the FB2090L. Installation should be completed by a qualified electrician and performed in accordance with the National Electrical Code (NEC), applicable local codes, and the original equipment manufacturer's instructions.

Where It Works Best

The FB2090L is commonly used in commercial buildings, manufacturing facilities, schools, hospitals, and other properties that continue to operate compatible FB electrical distribution equipment. It can be used to protect branch circuits serving HVAC systems, pumps, motors, lighting panels, compressors, and general power distribution.