SHJD69400 - 400Amp Circuit Breaker

SHJD69400 - 400Amp Circuit Breaker

The SHJD69400 is a 400 amp, 3-pole molded case circuit breaker built on the SJD 400A frame and intended for use in compatible commercial and industrial electrical systems. It uses a thermal magnetic trip unit to provide protection against overloads and short circuits while allowing key trip settings to be adjusted for the application.

Unlike breakers with fixed trip characteristics, this model lets qualified personnel adjust the continuous current setting, long-time delay, and instantaneous trip functions. That flexibility can make it easier to coordinate protection with other equipment already installed in the system. Its interrupting ratings of 35kA at 600VAC, 65kA at 480VAC, and 100kA at 240VAC make it suitable for a variety of distribution applications where those ratings are required.

Whether you're replacing an existing breaker during maintenance or matching the specifications of original equipment, the SHJD69400 is intended as a form, fit, and functional replacement for compatible installations. It's built to last and fits applications where maintaining the existing electrical system is the goal. Lug terminals are not included, so they will need to be supplied separately if required.

Key Features and Benefits

• 400 Amp Current Rating: 400 Amp current rating.
• Three-Pole Configuration: Three-pole configuration for three-phase electrical systems.
• Thermal Magnetic Trip Unit: Thermal magnetic trip unit.
• SJD 400A Frame: SJD 400A frame.
• Adjustable Trip Functions Include:
  • Continuous Current Setting
  • Long Time Delay
  • Instantaneous Setting
• Interrupting Ratings:
  • 35kA @ 600VAC
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• Replacement Compatibility: Form, fit, and functional replacement for compatible equipment.
• Built to Last: Built to last.
• Lug Terminals: Lug terminals not included.
  

Technical Specifications

• Part Number: SHJD69400
  
• Type: SHJD6-A
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: SJD 400A
  
• Poles: 3
  
• Amperage: 400A
  
• Trip Unit: Thermal Magnetic
  
• Adjustable Functions: Continuous Current Setting, Long Time Delay, Instantaneous Setting
  
• Interrupting Capacity: 35kA @ 600VAC; 65kA @ 480VAC; 100kA @ 240VAC
  
• Dimensions:
  • Height: 11.0 in.
  • Width: 7.5 in.
  • Depth: 4.0 in.
• Lug Terminals: Not Included
  

Material Compliance and Certifications

• Construction: Molded case circuit breaker construction.
• Overcurrent Protection: Thermal magnetic overcurrent protection.
• Installation Compatibility: Intended for installation in compatible electrical distribution equipment.
• Compatibility Verification: Verify compatibility with your existing equipment before installation.
• Installation Requirements: Installation should be completed by qualified personnel and in accordance with applicable electrical codes.
  

Where It Works Best

• The SHJD69400 is commonly found in commercial buildings, manufacturing facilities, schools, healthcare facilities, and other locations that rely on medium-voltage power distribution equipment. It works well in compatible switchboards, panelboards, feeder circuits, and motor control applications where a 400 amp, 3-pole thermal magnetic breaker with adjustable trip settings matches the original system requirements. If you're maintaining an existing installation, this breaker provides the form, fit, and functional compatibility needed for many legacy electrical systems.