FB3150 - 150Amp Circuit Breaker

FB3150 - 150Amp Circuit Breaker

Electrical systems that have been in service for years often require replacement components that match the original equipment without requiring modifications. The FB3150 is a 150 Amp, 3-pole FB thermal-magnetic circuit breaker designed as a form, fit, and functional replacement for compatible legacy electrical systems. Whether you're performing scheduled maintenance, replacing a failed breaker, or restoring equipment to service, this unit offers the ratings and configuration needed to help maintain the integrity of the existing installation.

Inside the breaker, thermal-magnetic protection combines two methods of circuit protection into a single device. The thermal element responds to sustained overload conditions by tripping after excessive current has been present for a period of time, while the magnetic element reacts almost instantly to short-circuit faults.

Key Features and Benefits

• Form, fit, and functional replacement for compatible FB electrical systems
• 150 Amp, 3-pole thermal-magnetic circuit breaker
• Thermal trip helps protect against sustained overload conditions
• Magnetic trip responds quickly to short-circuit faults
• Non-interchangeable trip unit with fixed factory trip settings
• Rated for operation in ambient temperatures up to 40°C
• Includes load terminals
• Built to last for continued service in compatible legacy electrical equipment

Technical Specifications

• Part Number: FB3150
  
• 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: Load 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 FB3150. Before installation, verify that the circuit breaker is compatible with the equipment being serviced and that all electrical ratings meet the requirements of the intended application. Installation should be completed 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 FB3150 is well suited for commercial, industrial, and institutional facilities that continue to utilize compatible FB electrical distribution equipment. It is commonly used to protect three-phase feeders, motor control circuits, HVAC systems, pumps, compressors, manufacturing equipment, and general power distribution applications where maintaining compatibility with existing electrical infrastructure is the primary goal.