FXD63B100L - 100Amp Circuit Breaker

FXD63B100L - 100Amp Circuit Breaker

The Siemens FXD63B100L is a 100 Amp, 3-pole molded case circuit breaker from the SENTRON FD family with a thermal-magnetic trip unit. Rated for systems up to 600VAC, it provides an interrupting capacity of 22kAIC at 600 volts and 35kAIC at 480 volts. Those numbers matter because they indicate how much available fault current the breaker can safely interrupt. When you're replacing an existing breaker, it's important to match not only the amp rating but also the frame size, interrupting rating, trip type, voltage, and pole configuration so the replacement fits the original application correctly.

Key Features and Benefits

• Siemens SENTRON FD molded case circuit breaker
• 100 Amp rating for feeder and distribution circuit applications
• Three-pole design for three-phase electrical systems
• Thermal-magnetic trip unit responds to both overloads and short circuits
• Factory-installed TA1FD350A line and load lugs
• Accepts 6 AWG–350 kcmil copper conductors and 4 AWG–350 kcmil aluminum conductors
• Standard 40°C calibration with a fixed, non-interchangeable trip unit
• Meets UL 489 and IEC 60947-2 requirements
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: FXD63B100L
  
• Product Family: SENTRON FD
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: FD
  
• Current Rating: 100 Amps
  
• Number of Poles: 3
  
• Trip Unit: Thermal-Magnetic
  
• Trip Design: Non-Interchangeable
  
• Calibration: Standard 40°C
  
• Maximum Voltage: 600VAC
  
• Interrupting Rating:
  • 22kAIC at 600VAC
  • 35kAIC at 480VAC
• Line and Load Lugs: Factory-installed TA1FD350A
  
• Copper Wire Range: 6 AWG–350 kcmil
  
• Aluminum Wire Range: 4 AWG–350 kcmil
  
• Dimensions (W × H × D): 4.5 in. × 9.5 in. × 4 in.
  
• Net Weight: 10.031 lb.
  
• Standards:
  • UL 489
  • IEC 60947-2
• RoHS Compliance: Compliant since July 1, 2006
  
• Country of Origin: Mexico
  
• UPC: 783643005808
  

Material Compliance and Certifications

The Siemens FXD63B100L complies with UL 489 and IEC 60947-2 standards for molded case circuit breakers and meets Siemens' published RoHS substance restrictions.

Installation should be completed by qualified electrical personnel in accordance with applicable electrical codes and manufacturer recommendations.

Where It Works Best

You'll commonly find the FXD63B100L in switchboards, panelboards, feeder circuits, commercial buildings, manufacturing facilities, warehouses, and other industrial electrical distribution systems that require a 100 Amp, 3-pole FD-frame molded case circuit breaker. Since this version includes factory-installed TA1FD350A line and load lugs, it's a practical choice when that exact lug configuration is already specified for the installation.