FB3150L - 150Amp Circuit Breaker

FB3150L - 150Amp Circuit Breaker

A breaker replacement shouldn't create more work than the repair itself. If you're maintaining compatible FB electrical equipment, the FB3150L offers the ratings and configuration needed to replace an existing unit without changing the original system layout. With a 150 Amp rating and a 3-pole design, it's intended as a form, fit, and functional replacement for compatible legacy installations in commercial and industrial facilities.

Protection comes from a thermal-magnetic design that's been used in electrical distribution systems for decades. During an overload, the thermal element responds after excess current is present long enough to become a concern. If a short circuit occurs, the magnetic mechanism trips much faster to help disconnect the fault.

Key Features and Benefits

• Form, fit, and functional replacement for compatible FB electrical systems
• 150 Amp, 3-pole thermal-magnetic circuit breaker
• Thermal protection responds to sustained overload conditions
• Magnetic trip reacts quickly during short-circuit faults
• Non-interchangeable trip unit with fixed factory trip settings
• Rated 14kA at 480VAC and 25kA at 240VAC
• Rated for operation in 40°C ambient environments
• Includes line and load-side terminals
• Built to last for continued service in compatible legacy equipment

Technical Specifications

• Part Number: FB3150L
  
• Type: FB
  
• Circuit Breaker Type: Thermal-Magnetic
  
• Amperage: 150 Amps
  
• Poles: 3
  
• Interrupting Rating: 14kA @ 480VAC; 25kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Ambient Rating: 40°C
  
• Terminals: Includes Line and Load-Side Terminals
  
• 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

Material compliance or certification information has not been provided for the FB3150L. Before installation, verify that the electrical ratings, physical 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 original equipment manufacturer's recommendations.

Where It Works Best

The FB3150L is commonly found in compatible FB panelboards and electrical distribution equipment serving commercial buildings, manufacturing facilities, warehouses, schools, healthcare facilities, and other industrial locations. It's well suited for protecting three-phase feeders, HVAC equipment, pumps, compressors, motor circuits, and general power distribution where maintaining the existing system configuration is the goal.