FXD63B150L - 150Amp Circuit Breaker

FXD63B150L - 150Amp Circuit Breaker

The Siemens FXD63B150L is a 150 Amp, 3-pole FD-frame molded case circuit breaker used in compatible Siemens Sentron electrical distribution equipment. It features a fixed thermal magnetic trip unit that protects circuits from overloads and short circuits while matching the original electrical design of existing installations.

Whether you're replacing a breaker during scheduled maintenance or restoring equipment after a fault, matching the original frame, amp rating, and interrupting capacity helps preserve the existing system design.

Key Features and Benefits

• 150 Amp continuous current rating
• Three-pole FD-frame molded case breaker
• Thermal magnetic trip unit with fixed trip settings
• Rated for applications up to 600VAC
• Factory-installed line and load lugs (TA1FD350A)
• Accepts copper conductors from 6 AWG to 350 kcmil
• Accepts aluminum conductors from 4 AWG to 350 kcmil
• Built to meet UL 489 and IEC 60947-2 requirements
• Built to last for long-term service in compatible Siemens electrical distribution equipment
  

Technical Specifications

• Catalog Number: FXD63B150L
  
• Manufacturer Part Number (MFN): FXD63B150L
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker
  
• Series / Frame: Sentron FD Frame
  
• Trip Unit: Thermal Magnetic
  
• Trip Configuration: Non-Interchangeable
  
• Amperage Rating: 150 Amps
  
• Voltage Rating: 600VAC
  
• Poles: 3
  
• Interrupt Rating: 22kAIC @ 600VAC; 35kAIC @ 480VAC
  
• Ambient Temperature Rating: Standard 40°C
  
• Terminal Type: Factory-installed Line and Load Lugs (TA1FD350A)
  
• Copper Wire Range: 6 AWG–350 kcmil
  
• Aluminum Wire Range: 4 AWG–350 kcmil
  
• Dimensions: 4.5 in. W × 9.5 in. H × 4.0 in. D
  
• Weight: 9.445 lb
  
• Country of Origin: Mexico
  
• UPC: 783643005884
  

Material Compliance and Certifications

The Siemens FXD63B150L is manufactured to comply with UL 489 and IEC 60947-2 standards for molded case circuit breakers. It is also RoHS compliant, making it suitable for installation in compatible Siemens low-voltage electrical distribution equipment.

Where It Works Best

The FXD63B150L is commonly installed in:

• Siemens Sentron FD-frame panelboards and switchboards
• Commercial office buildings
• Manufacturing and industrial facilities
• Schools, hospitals, and institutional buildings
• Distribution panels protecting three-phase feeders and branch circuits
• Electrical maintenance and repair projects
• Existing installations requiring a 150 Amp, 3-pole FD-frame circuit breaker with factory-installed lugs
• Applications where maintaining the original form, fit, and function of the electrical system is the priority