FD63T175 - 175Amp Trip Unit

FD63T175 - 175Amp Trip Unit

Finding the right circuit breaker for a commercial or industrial electrical system means balancing protection, compatibility, and dependable performance. The FD63T175 Siemens circuit breaker is a 175 Amp, 3-pole molded case circuit breaker designed for applications where reliable overcurrent protection is essential. Built as part of the Siemens SENTRON FD frame family, this breaker helps protect electrical equipment, feeders, and distribution circuits from overloads and short-circuit conditions while delivering the performance expected from a trusted electrical manufacturer.

Whether you are replacing an existing breaker, upgrading an electrical distribution system, or installing new equipment, the Siemens FD63T175 molded case circuit breaker provides a reliable solution for 175 amp applications.

Key Features and Benefits

• 175 Amp, 3-pole Siemens SENTRON molded case circuit breaker
• Designed for commercial and industrial electrical distribution systems
• Thermal magnetic trip technology provides overload and short-circuit protection
• Rated for 600 VAC electrical systems
• 22kAIC interrupting capacity at 600V
• 35kAIC interrupting capacity at 480V
• Includes line and load side lugs for easier installation
• Supports both copper and aluminum conductors
• Accepts 6 AWG–350 kcmil copper wire
• Accepts 4 AWG–350 kcmil aluminum wire
• Siemens FD frame design for compatible electrical equipment
  

Technical Specifications

• Catalog Number: FD63T175
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker (MCCB)
  
• Series: Siemens SENTRON FD Frame
  
• Frame Size: FD6
  
• Amperage Rating: 175 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 600 VAC
  
• Interrupting Capacity:
  • 22 kAIC at 600V
  • 35 kAIC at 480V
• Trip Unit: Thermal Magnetic
  
• Temperature Rating: 40°C Standard
  
• Connection Type: Line and Load Side Lugs Included
  
• Lug Type: TA1FD350A
  
• Wire Range:
  • Copper: 6 AWG–350 kcmil
  • Aluminum: 4 AWG–350 kcmil
• Standards: UL 489 / IEC 60947-2
  
• Dimensions: 4.5 in W x 9.5 in H x 4 in D
  
• Weight: 1.199 lb
  
• UPC: 783643211964
  

Material Compliance and Certifications

The Siemens FD63T175 molded case circuit breaker is designed to meet recognized electrical safety and performance standards, including UL 489 and IEC 60947-2 requirements. These standards help confirm that the breaker has been evaluated for applications requiring dependable overcurrent protection and safe electrical operation.

Where It Works Best

• Commercial electrical distribution systems
• Industrial facilities and manufacturing environments
• Three-phase 600V power applications
• Equipment feeder protection
• Electrical panels and distribution assemblies
• Siemens FD frame breaker replacement projects
• Applications requiring 175 amp circuit protection
• Systems using copper or aluminum conductors
• Electrical maintenance and upgrade projects
• New installations requiring a dependable molded case circuit breaker