FB3070 - 70Amp Circuit Breaker

FB3070 - 70Amp Circuit Breaker

Electrical systems in commercial and industrial facilities often remain in service for decades, making it important to replace components with parts that match the original equipment. The FB3070 is a 70 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 performing preventative maintenance, replacing a failed breaker, or restoring an existing panel to normal operation, this unit helps preserve the original configuration while providing dependable circuit protection.

This breaker features a factory-installed non-interchangeable trip unit, ensuring fixed trip characteristics established by the manufacturer. Rated for operation in ambient temperatures up to 40°C, the FB3070 includes load terminals to help simplify installation in compatible equipment.

Key Features and Benefits

• Form, fit, and functional replacement for compatible FB electrical equipment
• 70 Amp, 3-pole thermal-magnetic circuit breaker
• Thermal trip helps protect against sustained overload conditions
• Magnetic trip responds rapidly to short-circuit faults
• Factory-installed non-interchangeable trip unit
• Interrupting ratings of 14kA at 480VAC and 25kA at 240VAC
• Rated for operation in ambient temperatures up to 40°C
• Includes load terminals

Technical Specifications

• Part Number: FB3070
  
• Type: FB
  
• Circuit Breaker Type: Thermal-Magnetic
  
• Amperage: 70 Amps
  
• Poles: 3
  
• Interrupting Rating: 14kA @ 480VAC; 25kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Ambient Rating: 40°C
  
• 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 FB3070. Before installation, verify that the breaker's electrical ratings, physical dimensions, mounting configuration, terminal arrangement, and application requirements 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 electrical codes, and the original equipment manufacturer's recommendations.

Where It Works Best

The FB3070 is commonly installed in compatible FB panelboards and electrical distribution equipment serving commercial buildings, industrial facilities, warehouses, educational campuses, and institutional properties. It is well suited for protecting three-phase branch circuits supplying HVAC equipment, motors, pumps, compressors, lighting systems, and general power distribution where maintaining the original equipment configuration is the primary objective.