SHJD69300G - 300Amp Circuit Breaker

SHJD69300G - 300Amp Circuit Breaker

When your electrical system depends on dependable overcurrent protection, the SHJD69300G molded case circuit breaker delivers the ratings and adjustability needed for compatible power distribution applications. Built on the SJD 400-amp frame, this 300 amp, 3-pole thermal magnetic circuit breaker is designed as a form, fit, and functional replacement for compatible installations, making it an excellent choice for maintaining existing electrical systems.

One of the standout features of the SHJD69300G is its adjustable thermal magnetic trip unit, which allows qualified personnel to tailor protection settings to the application. Adjustable functions include continuous current setting, long-time delay, instantaneous setting, ground fault pickup, and ground fault delay, helping coordinate protection while meeting the demands of commercial and industrial power distribution systems.

With interrupting ratings of 35kA at 600VAC, 65kA at 480VAC, and 100kA at 240VAC, this breaker is built to handle demanding electrical environments. Whether you're replacing an existing breaker during maintenance or keeping critical equipment operating, the SHJD69300G offers the compatibility, electrical ratings, and dependable construction professionals expect. Please note that this breaker does not include lug terminals, so compatible lugs must be supplied separately if required for your installation.

Key Features and Benefits

• 300 Amp Current Rating: 300 Amp current rating.
• 3-Pole Molded Case Circuit Breaker: 3-pole molded case circuit breaker.
• SJD 400A Frame: SJD 400A frame.
• Type: SHJD6-A.
• Thermal Magnetic Trip Unit: Thermal magnetic trip unit.
• Adjustable Protection Settings:
  • Continuous Current Setting
  • Long Time Delay
  • Instantaneous Setting
  • Ground Fault Pickup
  • Ground Fault Delay
• Interrupting Ratings:
  • 35kA @ 600VAC
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• Replacement Compatibility: Designed as a form, fit, and functional replacement for compatible equipment.
• Built to Last: Built to last in demanding commercial and industrial environments.
• Lug Terminals: Lug terminals are not included.
  

Technical Specifications

• Part Number: SHJD69300G
  
• Type: SHJD6-A
  
• Frame: SJD 400A
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Trip Unit: Thermal Magnetic
  
• Poles: 3
  
• Amperage: 300A
  
• Interrupting Rating:
  • 35kA @ 600VAC
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• Adjustable Functions: Continuous Current Setting, Long Time Delay, Instantaneous Setting, Ground Fault Pickup, Ground Fault Delay
  
• Dimensions:
  • Height: 11.0 in.
  • Width: 7.5 in.
  • Depth: 4.0 in.
• Lug Terminals: Not Included
  

Material Compliance and Certifications

• Product Family Ratings: The SHJD69300G is manufactured for use in commercial and industrial electrical distribution systems and is designed to meet the electrical ratings associated with its product family.
• Installation Requirements: Installation should always be performed by qualified personnel following applicable electrical codes, manufacturer recommendations, and local regulations. Verify compatibility with your existing equipment before installation.
  

Where It Works Best

• The SHJD69300G is commonly used in commercial buildings, manufacturing facilities, industrial plants, healthcare facilities, educational campuses, and other large electrical distribution systems where a 300 amp, 3-pole molded case circuit breaker is required. It is well suited for protecting feeders, switchboards, panelboards, motor control equipment, and other distribution circuits operating on systems up to 600VAC. Its adjustable trip settings also make it a practical solution for applications that require coordinated protection while maintaining compatibility with existing equipment.