FD63B100 - 100Amp Circuit Breaker

FD63B100 - 100Amp Circuit Breaker

The Siemens FD63B100 is a 100 Amp, 3-pole molded case circuit breaker designed for FD-frame electrical distribution applications. This breaker features a thermal-magnetic trip unit and includes line and load-side lugs, providing a complete configuration for your compatible systems that require reliable overcurrent protection and a specific FD-frame fit.

Rated for 600 VAC, the FD63B100 provides 22 kAIC at 600V and 35 kAIC at 480V interrupting capacity. It supports a wide range of conductor sizes, including 6 AWG to 350 kcmil copper and 4 AWG to 350 kcmil aluminum. With its three-pole design and standard 40°C rating, this Siemens molded case circuit breaker is commonly used in commercial and industrial power distribution equipment where matching existing breaker specifications is essential.

Key Features and Benefits

• Siemens FD-frame molded case circuit breaker
• Catalog Number: FD63B100
• 100 Amp current rating
• Three-pole breaker configuration
• Thermal-magnetic trip unit
• Provides overload and short-circuit protection
• 600 VAC voltage rating
• 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: FD63B100
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: FD
  
• Amperage Rating: 100 Amps
  
• Number of Poles: 3
  
• Trip Type: Thermal-Magnetic
  
• Voltage Rating: 600 VAC
  
• Frequency Rating: 50/60 Hz
  
• Interrupting Capacity:
  • 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 8.885 lbs
  
• UPC: 783643211445
  

Material Compliance and Certifications

The Siemens FD63B100 is manufactured for FD-frame molded case circuit breaker applications and meets UL 489 and IEC 60947-2 standards. It is intended for use where the breaker’s frame size, amp rating, pole configuration, voltage rating, and interrupting capacity align with the requirements of the electrical equipment.

Where It Works Best

The Siemens FD63B100 is a strong fit for commercial facilities, industrial equipment, and electrical distribution systems using compatible FD-frame breakers. It is commonly selected for applications requiring a 100 Amp, three-pole circuit breaker with thermal-magnetic protection, factory-installed lugs, and dependable FD-frame compatibility.