HFXD63B125 - 125Amp Circuit Breaker

HFXD63B125 - 125Amp Circuit Breaker

Looking for an HFXD63B125 circuit breaker to match an existing electrical system? Getting the details right matters, especially when you're maintaining legacy equipment where the frame, amperage, pole configuration, dimensions, and interrupting ratings all need to match the application. For electricians, maintenance teams, and facility professionals working to keep compatible electrical systems operating as intended, the HFXD63B125 offers the specific form, fit, and function needed for the right application.

Key Features and Benefits

• 125A, 3-Pole Configuration: Need a 125-amp breaker with three poles? The HFXD63B125 provides this specific configuration for compatible applications.
• Non-Interchangeable Trip Unit: The trip unit is part of the specified breaker configuration and is non-interchangeable.
• Reverse-Feed Suitable: Designed for use in compatible applications where a reverse-fed breaker is required.
• HACR Rated: Suitable for applications where the specified HACR rating is required.
• 50/60Hz Compatibility: Supports electrical systems operating at either 50Hz or 60Hz.
• Load-Side Terminals Included: The breaker includes load-side terminals as part of its stated configuration.
  

Technical Specifications

• Part Number: HFXD63B125
  
• Type / Frame: HFXD6
  
• Breaker Type: Sentron Frame Molded Case Circuit Breaker
  
• Amperage: 125A
  
• Poles: 3
  
• A.I.C. @ 600VAC: 25kA
  
• A.I.C. @ 480VAC: 65kA
  
• A.I.C. @ 240VAC: 100kA
  
• Frequency: 50/60Hz
  
• Temperature Rating: 40°C
  
• Trip Unit: Non-Interchangeable
  
• HACR Rated: Yes
  
• Reverse Feed: Suitable for Reverse-Fed Applications
  
• Terminals: Load-Side Terminals Included
  
• Width: 4.50 in.
  
• Height: 9.50 in.
  
• Depth: 4.00 in.
  
• Dimensions:
  • 4.50"W x 9.50"H x 4.00"D
• Approx. Shipping Weight: 14.00 lbs.
  

Material Compliance and Certifications

For applications where documented ratings matter, the HFXD63B125 is HACR rated and specified for 50/60Hz operation at a 40°C rating.
No additional agency certifications or material-compliance declarations were included in the specifications provided for this exact part number.

Where It Works Best

The HFXD63B125 125A 3-pole molded case circuit breaker is particularly well suited to maintenance and replacement applications involving compatible HFXD6-frame electrical distribution equipment. That can make it especially relevant when working with existing or legacy systems where maintaining the original equipment configuration is important.