FD63B110L - 110Amp Circuit Breaker

FD63B110L - 110Amp Circuit Breaker

The Siemens FD63B100L is a 100 Amp, 3-pole molded case circuit breaker designed for FD-frame electrical distribution systems that require a complete breaker assembly with factory-installed lugs. This model combines a thermal-magnetic trip unit with line- and load-side lug connections, helping simplify replacement and maintenance applications where matching your existing breaker configuration is critical.

Rated for 600 VAC, the FD63B100L provides 22 kAIC at 600V and 35 kAIC at 480V interrupting capacity. It supports a broad conductor range, including 6 AWG to 350 kcmil copper and 4 AWG to 350 kcmil aluminum.

Key Features and Benefits

• Siemens FD-frame molded case circuit breaker
• Catalog Number: FD63B100L
• 100 Amp current rating
• Three-pole configuration
• Complete breaker assembly with lugs
• Thermal-magnetic trip unit for overload and short-circuit protection
• Rated for 600 VAC
• Standard 40°C breaker rating
• Includes line and load side lugs
• Designed to meet UL 489 and IEC 60947-2 standards
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: FD63B100L
  
• 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 10.031 lbs
  
• UPC: 783643005280
  

Material Compliance and Certifications

The Siemens FD63B100L is manufactured for FD-frame molded case circuit breaker applications and meets UL 489 and IEC 60947-2 standards. It is built for use in systems where the breaker frame, amp rating, pole configuration, voltage rating, and interrupting capacity must align with the existing electrical equipment requirements.

Where It Works Best

The Siemens FD63B100L is well suited for commercial buildings, industrial facilities, and electrical distribution equipment using compatible FD-frame breakers. It is a strong choice for applications requiring a 100 Amp, three-pole molded case circuit breaker with thermal-magnetic protection and factory-installed lug connections.