FXD63B225L - 225Amp Circuit Breaker

FXD63B225L - 225Amp Circuit Breaker

The Siemens FXD63B225L is a 225 Amp, 3-pole molded case circuit breaker designed for use in compatible Siemens Sentron FD electrical distribution equipment. It features a thermal magnetic trip unit with a fixed, non-interchangeable trip and is rated for systems up to 600VAC. With an interrupting rating of 22kAIC at 600VAC and 35kAIC at 480VAC, it's well suited for protecting feeders and branch circuits in commercial and industrial applications.

Whether you're dealing with scheduled maintenance or replacing a breaker that has reached the end of its service life, the FXD63B225L provides the same form, fit, and function as the original Siemens device.

Key Features and Benefits

• 225 Amp continuous current rating
• Three-pole FD-frame molded case circuit breaker
• Thermal magnetic trip protects against overloads and short circuits
• Fixed, non-interchangeable trip unit
• Rated for applications up to 600VAC
• Factory-installed TA1FD350A line and load lugs
• Accepts 6 AWG to 350 kcmil copper conductors
• Accepts 4 AWG to 350 kcmil aluminum conductors
• Calibrated for a standard 40°C ambient temperature
  

Technical Specifications

• Catalog Number: FXD63B225L
  
• Manufacturer: Siemens
  
• Manufacturer Part Number (MFN): FXD63B225L
  
• Product Type: Molded Case Circuit Breaker
  
• Series / Family: Sentron FD6
  
• Frame: FD
  
• Trip Unit: Thermal Magnetic
  
• Trip Type: Fixed, Non-Interchangeable
  
• Current Rating: 225 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.
  
• Net Weight: 10.00 lb
  
• Country of Origin: Mexico
  
• UPC: 783643006065
  

Material Compliance and Certifications

The Siemens FXD63B225L meets UL 489 and IEC 60947-2 standards for molded case circuit breakers. It also complies with the applicable RoHS Directive, and Siemens provides REACH Article 33 information to support current substance reporting requirements.

Installation should always be performed by qualified electrical personnel in accordance with the National Electrical Code (NEC), local electrical codes, and the equipment manufacturer's instructions.

Where It Works Best

The FXD63B225L is commonly used in:

• Compatible Siemens Sentron FD-frame panelboards
• Switchboards and low-voltage distribution equipment
• Commercial office buildings
• Manufacturing plants and industrial facilities
• Schools, hospitals, and other institutional buildings
• Three-phase feeder and branch circuit applications
• Scheduled maintenance and replacement projects
• Existing Siemens electrical systems where maintaining the original form, fit, and function is important