HFD63B090 - 90A Circuit Breaker

HFD63B090 - 90A Circuit Breaker

When you’re replacing a circuit breaker in existing equipment, getting the details right matters. The Siemens HFD63B090 is a 90-amp, 3-pole molded case circuit breaker from the SENTRON HFD6 family, built on the FD frame for applications up to 600VAC. It uses a thermal-magnetic trip unit and is rated 25 kAIC at 600V and 65 kAIC at 480V.

Key Features and Benefits

• 90A, 3-pole configuration for equipment designed around this specific amperage and pole arrangement.
• Rated for applications up to 600VAC.
• Thermal-magnetic trip unit provides overload and short-circuit protection.
• FD frame construction for compatible Siemens SENTRON HFD6 applications.
• Supplied with TA1FD350A load-side lugs.
• Accepts 6 AWG–350 kcmil copper and 4 AWG–350 kcmil aluminum conductors.
• Published dimensions make it easier to verify form and fit before installation.
• Meets recognized UL 489 and IEC 60947-2 standards.

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number / MFN: HFD63B090
  
• Series: SENTRON
  
• Product Family: HFD6
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: FD
  
• Ampere Rating: 90A
  
• Number of Poles: 3
  
• Maximum Voltage: 600VAC
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Rating at 600V: 25 kAIC
  
• Interrupting Rating at 480V: 65 kAIC
  
• Standard Temperature Rating: 40°C
  
• Load-Side Lugs: TA1FD350A
  
• Copper Wire Range: 6 AWG–350 kcmil
  
• Aluminum Wire Range: 4 AWG–350 kcmil
  
• Dimensions (W x H x D):
  • Width: 4.5
  • Height: 9.5
  • Depth: 4 in.
• Net Weight: 9.48 lb
  
• UPC: 783643211780
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens HFD63B090 circuit breaker meets UL 489 and IEC 60947-2 standards, providing useful certification information when confirming whether the breaker fits the requirements of a particular installation.

Where It Works Best

The HFD63B090 is best suited to commercial and industrial electrical equipment designed for a 90A, 3-pole Siemens FD-frame molded case circuit breaker with the corresponding voltage and interrupting ratings. It can be particularly useful in maintenance and replacement situations where preserving the existing equipment's form, fit, and function is the goal.