TJJ426150 - 150Amp Circuit Breaker

TJJ426150 - 150 Amp Circuit Breaker

The TJJ426150 molded case circuit breaker is designed for dependable circuit protection in your commercial and industrial electrical distribution systems where higher interrupting capacities and consistent operation matter. Built as part of the Q-Line family, this 2-pole, 150-amp breaker features a thermal-magnetic trip unit with internal common trip functionality to help you protect connected equipment and branch circuits from overloads and short circuits. Its bolt-on mounting design supports a secure installation in compatible panelboard and switchboard applications, while the included load-side lugs simplify field wiring. With HACR rating capability and non-interchangeable trip construction, the TJJ426150 is commonly used in HVAC systems, distribution panels, and legacy power systems that require a direct, form-, fit-, and function-compatible replacement. Built to last and engineered for demanding electrical environments, this breaker provides the ratings and compatibility professionals look for when maintaining or servicing existing infrastructure.

Key Features and Benefits

• 150 Amp Molded Case Circuit Breaker: Designed for commercial and industrial power distribution applications requiring dependable circuit protection.
• 2-Pole Configuration: Supports protection for multi-phase electrical systems in compatible distribution equipment.
• Thermal Magnetic Trip Unit: Responds to both overload and short-circuit conditions to help protect connected electrical equipment and branch circuits.
• Internal Common Trip Mechanism: Helps disconnect both poles simultaneously during fault events for added protection.
• Q-Line Bolt-On Construction: Allows secure mounting in compatible panelboard and switchboard applications.
• Load-Side Lugs Included: Simplifies field wiring and installation requirements.
• HACR Rated: Approved for use in heating, air conditioning, and refrigeration applications.
• Non-Interchangeable Trip Unit: Helps maintain specified protection settings within the system design.
• High Interrupting Capacity: Suitable for applications requiring higher interrupting capacity ratings.
• Built for Long-Term Use: Designed for existing electrical systems and replacement applications in demanding environments.
  

Technical Specifications

• Part Number: TJJ426150
  
• Type: TJJ
  
• Product Family: Q-Line
  
• Poles: 2
  
• Amperage: 150A
  
• Trip Unit: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Trip Configuration: Internal Common Trip
  
• Interrupting Rating:
  • 22kA @ 600VAC
  • 30kA @ 480VAC
  • 42kA @ 240VAC
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.
• Included Accessories: Load-Side Lugs
  
• HACR Rated: Yes
  

Material Compliance and Certifications

• HACR Rated: Approved for HVAC-related applications requiring compatible circuit protection devices.
• Manufacturing Standards: Manufactured for use in accordance with applicable molded case circuit breaker standards.
• Equipment Compatibility: Designed for compatibility with properly rated electrical distribution equipment.
• Overcurrent Protection: The thermal magnetic protection system supports standard overcurrent protection requirements.
  

Where It Works Best

• The TJJ426150 circuit breaker is well-suited for commercial buildings, industrial facilities, HVAC equipment, distribution panels, and other electrical systems requiring a 2-pole 150A breaker with high interrupting capacity. It is commonly used in existing Q-Line installations where maintaining equipment compatibility and proper electrical protection is essential. This breaker is especially useful in facilities operating legacy infrastructure that requires dependable replacement components that match the original system specifications.