HHJD63B300 - 300Amp Circuit Breaker

HHJD63B300 - 300Amp Circuit Breaker

The HHJD63B300 is a 3-pole, 300-amp HHJD6-A molded case circuit breaker designed for your electrical distribution equipment that requires this specific breaker frame and configuration. This breaker features an interchangeable trip unit design and includes load-side lugs for compatible installations. With interrupting ratings of 50kA at 600VAC, 100kA at 480VAC, and 200kA at 240VAC, plus a 30kAIC rating at 250VDC for 2-pole applications, the HHJD63B300 is suited for commercial and industrial electrical systems where matching the existing equipment specifications is important.

Key Features and Benefits

• 300-amp rating – Designed for electrical systems requiring a 300A molded case circuit breaker.
• 3-pole design – Fits compatible three-phase electrical equipment.
• HHJD6-A frame style – Designed for applications requiring this specific breaker family.
• Interchangeable trip unit – Allows compatible trip unit configurations to be used for the intended application.
• 250VDC rating for 2-pole applications – Provides a 30kAIC rating where applicable.
• Load-side lugs included – Provides the connection points needed for compatible installations.

Technical Specifications

• Part Number: HHJD63B300
  
• Breaker Type: HHJD6-A Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage Rating: 300 Amps
  
• Trip Unit: Interchangeable trip unit design
  
• A.I.C. Ratings:
  • 50kA at 600VAC
  • 100kA at 480VAC
  • 200kA at 240VAC
• DC Rating: 30kAIC at 250VDC (2-pole applications)
  
• Terminals: Load-side lugs included
  
• Dimensions: 7.50"W x 11.00"H x 4.00"D
  
• Height: 11.0 inches
  
• Width: 7.5 inches
  
• Depth: 4.0 inches
  
• Approximate Shipping Weight: 18 lbs.
  

Material Compliance and Certifications

The HHJD63B300 is a molded case circuit breaker designed for electrical equipment requiring the listed breaker ratings and configuration. Its interchangeable trip unit design and specified interrupting ratings make it suitable for compatible commercial and industrial applications.

Where It Works Best

The HHJD63B300 works best in existing electrical distribution equipment that requires a 3-pole, 300-amp HHJD6-A molded case circuit breaker. It is suited for maintenance and replacement applications involving compatible panels, switchboards, and electrical assemblies designed for this breaker frame.