FD63B070 - 70Amp Circuit Breaker

FD63B070 - 70Amp Circuit Breaker

The Siemens FD63B070 is a 70 Amp, 3-pole molded case circuit breaker built for FD-frame applications. This breaker features a thermal-magnetic trip unit that provides protection during overload and short-circuit conditions. With its 600 VAC rating and FD frame design, it is suited for electrical distribution systems where matching your existing breaker specifications is essential.

Key Features and Benefits

• Siemens FD-frame molded case circuit breaker
• Catalog Number: FD63B070
• 70 Amp rating
• Three-pole configuration
• Thermal-magnetic trip unit
• Provides overload and short-circuit protection
• Rated for 600 VAC
• Standard 40°C breaker rating
• Includes line and load side lugs
• Meets UL 489 and IEC 60947-2 standards
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: FD63B070
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: FD
  
• Amperage Rating: 70 Amps
  
• Number of Poles: 3
  
• Trip Type: Thermal-Magnetic
  
• Voltage Rating: 600 VAC
  
• Frequency Rating: 50/60 Hz
  
• Interrupting Rating:
  • 22 kAIC at 600 VAC
  • 35 kAIC at 480 VAC
• Terminal Configuration: Line and Load Side Lugs
  
• Wire Range:
  • Copper: 6 AWG – 350 kcmil
  • Aluminum: 4 AWG – 350 kcmil
• Dimensions: 4.5 in. W × 9.5 in. H × 4 in. D
  
• Weight: Approximately 8.907 lbs
  
• UPC: 783643211414
  

Material Compliance and Certifications

The Siemens FD63B070 is designed to meet UL 489 and IEC 60947-2 standards for molded case circuit breaker applications. Before installation, confirm that the breaker matches the equipment requirements, including frame type, number of poles, voltage rating, and interrupting capacity.

Where It Works Best

The Siemens FD63B070 is commonly used in commercial buildings, industrial facilities, and electrical distribution equipment that uses compatible FD-frame molded case circuit breakers. It works well for applications requiring a three-pole, 70 Amp breaker with specific FD-frame ratings and configurations.