HFD63B175L - 175Amp Circuit Breaker

HFD63B175L - 175Amp Circuit Breaker

The Siemens HFD63B175L is a 175A, 3-pole molded case circuit breaker for compatible SENTRON equipment built around the FD frame. It’s rated up to 600VAC and uses a thermal-magnetic trip unit for overload and short-circuit protection. Interrupting capacity is 25 kAIC at 600V and 65 kAIC at 480V. This model also includes TA1FD350A lugs on both the line and load sides, with conductor ranges of 6 AWG to 350 kcmil copper and 4 AWG to 350 kcmil aluminum. The breaker measures 4.5 inches wide, 9.5 inches high, and 4 inches deep, so you have clear physical dimensions to compare when checking an existing installation.

Key Features and Benefits

• 175A, 3-pole configuration for compatible electrical distribution equipment.
• FD frame helps maintain the intended form and fit in matching SENTRON applications.
• Rated for systems up to 600VAC.
• Thermal-magnetic trip unit provides overload and short-circuit protection.
• Interrupting ratings of 25 kAIC at 600V and 65 kAIC at 480V.
• Includes TA1FD350A line- and load-side lugs.
• Accepts 6 AWG–350 kcmil copper conductors.
• Accepts 4 AWG–350 kcmil aluminum conductors.
• Standard 40°C breaker configuration.
• Meets UL 489 and IEC 60947-2 standards.

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HFD63B175L
  
• Series: SENTRON
  
• Product Family: HFD6
  
• Type: Molded Case Circuit Breaker
  
• Frame: FD
  
• Amperage: 175A
  
• Poles: 3
  
• Maximum Voltage: 600VAC
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Rating: 25 kAIC at 600V; 65 kAIC at 480V
  
• Temperature Rating: 40°C
  
• Lugs: TA1FD350A, line and load side
  
• Copper Wire Range: 6 AWG–350 kcmil
  
• Aluminum Wire Range: 4 AWG–350 kcmil
  
• Dimensions:
  • 4.5" W × 9.5" H × 4" D
• Net Weight: 10.031 lb
  
• UPC: 783643235908
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The HFD63B175L meets UL 489 and IEC 60947-2 standards. REACH Article 33 information is available through the product’s compliance documentation, while a SCIP number is not listed.

Where It Works Best

The Siemens HFD63B175L is best suited to commercial and industrial electrical distribution equipment that specifically calls for a 175A, 3-pole FD-frame molded case circuit breaker with matching voltage, interrupting ratings, dimensions, and lug configuration.