FD63T080 - 80Amp Trip Unit

FD63T080 - 80Amp Trip Unit

When you need reliable circuit protection for a commercial or industrial electrical system, choosing the right breaker comes down to having the correct amperage, voltage rating, and protection features. The FD63T080 Siemens circuit breaker is an 80 Amp, 3-pole molded case circuit breaker designed to provide dependable protection for three-phase electrical applications. As part of the Siemens SENTRON FD frame family, this breaker is built to help protect equipment, feeders, and distribution circuits from damaging overloads and short-circuit conditions.

Installation flexibility is another advantage of this Siemens 80 amp circuit breaker. The FD63T080 includes line and load side lugs and supports a wide range of conductor sizes with the included TA1FD350A lug configuration. It accepts 6 AWG to 350 kcmil copper conductors and 4 AWG to 350 kcmil aluminum conductors, giving electrical professionals more options when working on different system designs or replacement projects.

Key Features and Benefits

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

Technical Specifications

• Catalog Number: FD63T080
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker (MCCB)
  
• Series: SENTRON FD Frame
  
• Frame Size: FD6
  
• Amperage Rating: 80 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: 1.29 lb
  
• UPC: 783643211902
  

Material Compliance and Certifications

The Siemens FD63T080 molded case circuit breaker is designed to meet recognized industry standards for electrical safety and performance, including UL 489 and IEC 60947-2 requirements. These standards help confirm that the breaker has been evaluated for applications requiring reliable overcurrent protection.

Where It Works Best

• Commercial buildings and electrical distribution systems
• Industrial facilities and manufacturing environments
• Three-phase 600V power applications
• Equipment feeders and branch circuit protection
• Electrical panels and distribution assemblies
• Siemens FD frame breaker replacement projects
• Applications requiring 80 amp overcurrent protection
• Systems using copper or aluminum conductors
• Electrical maintenance and upgrade projects
• New installations requiring a dependable molded case circuit breaker