TJJ426150 **Older Style** - 150Amp Circuit Breaker

TJJ426150 **Older Style** - 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 maintaining compatibility with existing equipment is essential. Built with an older style black face configuration, this 2-pole, 150-amp breaker features a thermal magnetic trip unit with internal common trip functionality to help you protect electrical systems from overloads and short circuits. Its bolt-on mounting design supports secure installation in compatible panelboards and switchgear applications, while included load-side lugs help simplify wiring connections in the field. As part of the trusted Q-Line family, the TJJ426150 is commonly used in facilities that require reliable replacement components built to match original form and fit requirements. Constructed for long-term service in demanding environments, this breaker is HACR rated and suitable for a wide range of HVAC, distribution, and power management applications.

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: Compatible with multi-phase electrical systems where a 2-pole breaker is specified.
• Older Style Black Face Design: Supports form, fit, and functional replacement applications in existing electrical systems.
• Thermal Magnetic Trip Unit: Provides protection against overloads and short circuits to help maintain system safety and reliability.
• Internal Common Trip Mechanism: Helps disconnect both poles simultaneously during fault conditions.
• Bolt-On Mounting Style: Supports stable and secure installation in compatible panelboards and switchgear.
• Includes Load-Side Lugs: Simplifies wiring connections during installation and maintenance procedures.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment applications.
• Q-Line Compatible Design: Commonly used in existing legacy electrical systems requiring compatible replacement components.
• Built for Long Service Life: Constructed for dependable operation in demanding commercial and industrial environments.
  

Technical Specifications

• Part Number: TJJ426150
  
• Type: TJJ
  
• Product Category: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage Rating: 150A
  
• Voltage Ratings: 600VAC / 480VAC / 240VAC
  
• A.I.C. Rating: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Mounting Style: Bolt-On
  
• Series: Q-Line
  
• HACR Rated: Yes
  
• Included Accessories: Load-Side Lugs
  
• Dimensions:
  • Height: 10.13 in
  • Width: 8.25 in
  • Depth: 3.81 in

Material Compliance and Certifications

• Commercial and Industrial Use: The TJJ426150 circuit breaker is manufactured for use in commercial and industrial electrical systems requiring dependable overcurrent protection and compatibility with existing equipment configurations.
• HACR Rated: Approved for use with heating, air conditioning, and refrigeration equipment applications.
• Molded Case Construction: Intended for long-lasting operation in properly maintained electrical distribution systems.
  

Where It Works Best

• The TJJ426150 is commonly installed in commercial buildings, manufacturing facilities, mechanical systems, and industrial power distribution equipment where maintaining original equipment compatibility is important. It is well-suited for use in HVAC systems, distribution panels, switchboards, and other applications requiring a 2-pole, 150-amp bolt-on circuit breaker with high interrupting capacity ratings. This breaker is especially useful in facilities operating legacy electrical infrastructure where matching existing specifications and dimensions helps reduce installation challenges and downtime.