FXD63B175L - 175Amp Circuit Breaker

FXD63B175L - 175Amp Circuit Breaker

The Siemens FXD63B175L is a 175 Amp, 3-pole FD-frame molded case circuit breaker intended for use in compatible Siemens Sentron electrical distribution equipment. It uses a fixed thermal magnetic trip unit to protect circuits from overloads and short circuits while matching the original electrical characteristics of the installation.

If you're replacing an existing FD-frame breaker with the same ratings, the FXD63B175L is intended to fit the original installation without changing the panel layout or conductor arrangement.

Key Features and Benefits

• 175 Amp continuous current rating
• Three-pole Siemens Sentron FD-frame breaker
• Thermal magnetic trip unit for overload and short-circuit protection
• Fixed, non-interchangeable trip configuration
• Rated for applications up to 600VAC
• Factory-installed TA1FD350A line and load lugs
• Accepts copper conductors from 6 AWG to 350 kcmil
• Accepts aluminum conductors from 4 AWG to 350 kcmil
• Built to last for long-term use in compatible electrical distribution systems
  

Technical Specifications

• Catalog Number: FXD63B175L
  
• Manufacturer: Siemens
  
• Manufacturer Part Number (MFN): FXD63B175L
  
• Product Type: Molded Case Circuit Breaker
  
• Series / Family: Sentron FD6
  
• Frame: FD
  
• Trip Unit: Thermal Magnetic
  
• Trip Type: Fixed, Non-Interchangeable
  
• Current Rating: 175 Amps
  
• Voltage Rating: 600VAC
  
• Number of Poles: 3
  
• Interrupt Rating: 22kAIC @ 600VAC; 35kAIC @ 480VAC
  
• Terminal Type: Factory-installed TA1FD350A line and load lugs
  
• Copper Wire Range: 6 AWG–350 kcmil
  
• Aluminum Wire Range: 4 AWG–350 kcmil
  
• Ambient Temperature: Standard 40°C
  
• Dimensions (W × H × D): 4.5 × 9.5 × 4.0 in.
  
• Weight: 10.00 lb
  
• Country of Origin: Mexico
  
• UPC: 783643005945
  

Material Compliance and Certifications

The Siemens FXD63B175L complies with UL 489 and IEC 60947-2 standards for molded case circuit breakers. It also meets applicable RoHS substance restrictions, and Siemens provides REACH Article 33 information for this product. Installation should always be completed by qualified electrical personnel in accordance with the National Electrical Code (NEC), local regulations, and the equipment manufacturer's instructions. Built to last, this breaker is intended for use within its published electrical ratings and compatible FD-frame equipment.

Where It Works Best

The FXD63B175L is commonly used in:

• Siemens Sentron FD-frame panelboards and switchboards
• Commercial office buildings
• Manufacturing plants and industrial facilities
• Schools, hospitals, and institutional buildings
• Three-phase feeder and distribution circuits
• Maintenance and repair projects requiring a 175 Amp FD-frame replacement breaker
• Installations that require factory-installed line and load lugs
• Existing electrical systems where maintaining the original form, fit, and function is the priority