FB3090 - 90Amp Circuit Breaker

FB3090 - 90Amp Circuit Breaker

When a critical piece of electrical equipment needs a replacement breaker, having the correct ratings and configuration can help minimize downtime and keep maintenance projects moving. The FB3090 is a 90 Amp, 3-pole FB thermal-magnetic circuit breaker built as a form, fit, and functional replacement for compatible legacy electrical distribution systems. Whether you're servicing a commercial panelboard, maintaining industrial equipment, or replacing a failed device during preventative maintenance, this breaker helps preserve the original system design while delivering dependable circuit protection.

Key Features and Benefits

• Form, fit, and functional replacement for compatible FB electrical systems
• 90 Amp, 3-pole thermal-magnetic circuit breaker
• Thermal trip helps protect against prolonged overload conditions
• Magnetic trip provides rapid interruption during short-circuit faults
• Non-interchangeable trip unit with factory-established trip characteristics
• Interrupting ratings of 14kA at 480VAC and 25kA at 240VAC
• Rated for operation in ambient temperatures up to 40°C
• Includes load-side terminals

Technical Specifications

• Part Number: FB3090
  
• Type: FB
  
• Circuit Breaker Type: Thermal-Magnetic
  
• Amperage: 90 Amps
  
• Poles: 3
  
• Interrupting Rating: 14kA @ 480VAC; 25kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Ambient Rating: 40°C
  
• Load-Side Terminals: Included
  
• Dimensions:
  • Height: 6.00"
  • Width: 4.13"
  • Depth: 3.38"
• Dimensions: 4.13"W × 6.00"H × 3.38"D
  
• Approximate Shipping Weight: 5.50 lbs.
  

Material Compliance and Certifications

No material compliance or certification information has been provided for the FB3090. Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC), applicable local electrical codes, and the original equipment manufacturer's recommendations.

Where It Works Best

The FB3090 is a practical choice for compatible FB panelboards and electrical distribution equipment installed in commercial buildings, manufacturing plants, warehouses, healthcare facilities, educational campuses, and other industrial environments.