FB3070L - 70Amp Circuit Breaker

FB3070L - 70Amp Circuit Breaker

When keeping an existing electrical distribution system in service, choosing a replacement breaker that matches the original equipment is essential. The FB3070L is a 70 Amp, 3-pole FB thermal-magnetic circuit breaker built as a form, fit, and functional replacement for compatible legacy electrical systems. Whether you're replacing a breaker during scheduled maintenance or restoring power after a device has reached the end of its service life, the FB3070L helps maintain the original design of the equipment while providing dependable circuit protection.

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 circuits from prolonged overload conditions
• Magnetic trip provides rapid response 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 both line-side and load-side terminals

Technical Specifications

• Part Number: FB3070L
  
• 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
  
• Line-Side Terminals: Included
  
• 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 FB3070L. 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 FB3070L is commonly used in compatible FB panelboards and electrical distribution equipment found in commercial buildings, manufacturing facilities, warehouses, healthcare facilities, educational campuses, and other industrial environments.