TJD422300 - 300Amp Circuit Breaker

TJD422300 - 300 Amp Circuit Breaker

The TJD422300 molded case circuit breaker is designed for you to use in commercial and industrial electrical distribution systems that require dependable overcurrent protection. This 2-pole, 300-amp breaker is part of the Q-Line series and features a bolt-on mounting design for use in compatible panelboards and electrical equipment. Its internal common trip mechanism allows both poles to disconnect together during overloads or short circuits, helping you to protect connected circuits and equipment.

Rated for 22kA at 240VAC, the TJD422300 is commonly used in facilities with HVAC equipment, distribution panels, and other heavy-duty electrical applications. The HACR rating makes it suitable for heating, air conditioning, and refrigeration systems. Load-side lugs are included to support installation and field wiring. Built with molded case construction, this breaker is intended for long-term service in existing electrical systems where compatibility and reliable operation matter.

Key Features and Benefits

• 2-Pole Molded Case Design: Designed for dependable overcurrent protection in commercial and industrial electrical distribution systems.
• 300A Current Rating: Supports electrical systems and equipment requiring a 300-amp breaker configuration.
• 22kA Interrupting Capacity: Rated for 22kA at 240VAC to help protect connected circuits and equipment during overloads or short circuits.
• Q-Line Bolt-On Mounting: Features a bolt-on mounting configuration for use in compatible panelboards and electrical equipment.
• Internal Common Trip: Allows both poles to disconnect together during overloads or short circuits for coordinated circuit protection.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration applications.
• Load-Side Lugs Included: Supports installation and field wiring requirements.
• Long Service Life: Built with molded case construction for long-term service in existing electrical systems where compatibility and reliable operation matter.
  

Technical Specifications

• Part Number: TJD422300
  
• Type: TJD
  
• Product Family: Q-Line
  
• Poles: 2
  
• Amperage Rating: 300A
  
• Voltage Rating: 240VAC
  
• A.I.C. Rating: 22kA @ 240VAC
  
• Mounting Type: Bolt-On
  
• Trip Style: Internal Common Trip
  
• HACR Rated: Yes
  
• Load-Side Lugs: Included
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: Suitable for HVAC and refrigeration applications in commercial and industrial environments.
• Molded Case Construction: Built for dependable long-term service in compatible electrical systems.
• Industry Standards: Manufactured to meet applicable industry standards for circuit protection equipment and designed for use in compatible commercial and industrial electrical systems.
  

Where It Works Best

• The TJD422300 is often used in commercial buildings, industrial facilities, HVAC systems, and electrical distribution equipment requiring a 300A, 2-pole breaker. Its Q-Line bolt-on design makes it a practical form, fit, and functional replacement for maintaining existing electrical infrastructure and compatible panelboard systems.