FD63F250 - 250Amp Max. *Frame Only*

FD63F250 - 250Amp Max. *Frame Only*

When your electrical system requires dependable protection at higher amperage levels, the FD63F250 Siemens circuit breaker delivers the performance needed for demanding commercial and industrial applications. This 250 Amp, 3-pole molded case circuit breaker is part of the Siemens SENTRON FD frame family and is designed to help protect electrical equipment, feeders, and distribution systems from overloads and short-circuit conditions.

Installation is easier with the included line and load-side lugs, eliminating the need to source separate connection accessories. The breaker accepts a wide range of conductor sizes, supporting 6 AWG to 350 kcmil copper wire and 4 AWG to 350 kcmil aluminum wire through the included TA1FD350A lugs. That flexibility makes it a practical option for electricians, contractors, and facility maintenance teams working on a variety of electrical distribution projects.

Key Features and Benefits

• 250 Amp, 3-pole Siemens SENTRON molded case circuit breaker
• Provides dependable protection for commercial and industrial electrical systems
• Thermal magnetic trip technology helps protect against overloads and short circuits
• Rated for 600 VAC applications
• Includes line and load side lugs for easier installation
• Supports copper and aluminum conductors for installation flexibility
• TA1FD350A lugs accept 6 AWG–350 kcmil copper and 4 AWG–350 kcmil aluminum wire
  

Technical Specifications

• Catalog Number: FD63F250
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker (MCCB)
  
• Product Family: SENTRON FD Frame
  
• Frame Size: FD6
  
• Amperage Rating: 250 Amps
  
• 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
  
• Lug Type: TA1FD350A
  
• Wire Range:
  • Copper: 6 AWG–350 kcmil
  • Aluminum: 4 AWG–350 kcmil
• Mounting/Application: Siemens FD frame molded case breaker applications
  
• Standards: UL 489 / IEC 60947-2
  
• Dimensions: 4.5 in W x 9.5 in H x 4 in D
  
• Weight: 7.804 lb
  
• UPC: 783643211537
  

Material Compliance and Certifications

The Siemens FD63F250 circuit breaker is manufactured to meet established electrical safety and performance requirements, including UL 489 and IEC 60947-2 standards for molded case circuit breakers.

Where It Works Best

• Commercial buildings and electrical distribution systems
• Industrial facilities and manufacturing environments
• Three-phase 600V power systems
• Equipment feeders and distribution circuits
• Siemens FD frame breaker replacement projects
• Switchboards and electrical distribution assemblies
• Applications requiring 250 amp overcurrent protection
• Systems using copper or aluminum conductors
• Electrical maintenance and upgrade projects