TJJ436175 **Older Style** - 175Amp Circuit Breaker

TJJ436175 **Older Style** - 175 Amp Circuit Breaker

The TJJ436175 molded case circuit breaker is designed for dependable circuit protection in your commercial and industrial electrical distribution systems that require a 3-pole, 175-amp solution. Built as part of the trusted Q-Line series, this older style black face breaker features a non-interchangeable thermal magnetic trip unit with internal common trip functionality for consistent protection against overloads and short circuits. Its bolt-on mounting design helps provide a secure installation in compatible panelboard and switchgear applications, while the included load-side lugs simplify conductor termination during installation or replacement work.

With interrupting ratings of 22kA at 600VAC, 30kA at 480VAC, and 42kA at 240VAC, the TJJ436175 is suited for demanding power distribution environments where reliable protection is essential. HACR rating compatibility also makes it appropriate for heating, air conditioning, and refrigeration equipment applications. Designed with durability in mind, this breaker is built to last and remains a practical form, fit, and functional replacement option for maintaining existing electrical systems and legacy equipment configurations.

Key Features and Benefits

• 175 Amp molded case circuit breaker: Designed for commercial and industrial power distribution.
• 3-pole configuration: Designed for multi-phase electrical systems.
• Older style black face design: Supports compatibility with existing installations.
• Bolt-on mounting style: Helps provide a stable and secure connection.
• Thermal magnetic trip unit: Delivers protection against overloads and short circuits.
• Internal common trip mechanism: Enhances coordinated circuit interruption.
• Non-interchangeable trip unit configuration: Built for consistent protection requirements.
• HACR rated: Suitable for heating, air conditioning, and refrigeration applications.
• Includes load-side lugs: Simplifies installation and conductor termination.
• Designed for dependable operation: Suitable for legacy and replacement applications.
  

Technical Specifications

• Part Number: TJJ436175
  
• Series: Q-Line
  
• Type: TJJ
  
• Product Type: Molded Case Circuit Breaker
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Non-Interchangeable
  
• Poles: 3
  
• Amperage: 175 Amps
  
• Mounting Type: Bolt-On
  
• Voltage & A.I.C. Ratings: 22kA @ 600VAC; 30kA @ 480VAC; 42kA @ 240VAC
  
• Dimensions:
  • Height: 10.13 inches
  • Width: 8.25 inches
  • Depth: 3.81 inches
• Face Style: Older Style Black Face
  
• Included Accessories: Load-Side Lugs
  
• HACR Rated: Yes
  

Material Compliance and Certifications

• HACR Rated: Approved for use with heating, air conditioning, and refrigeration equipment.
• Commercial and Industrial Applications: Manufactured for use in compatible electrical distribution systems.
• Thermal Magnetic Protection: Designed to support established overcurrent protection requirements.
• Form, Fit, and Functional Replacement: Built for maintaining existing equipment setups and legacy systems.
  

Where It Works Best

• The TJJ436175 circuit breaker is commonly used in commercial facilities, industrial buildings, manufacturing operations, and large-scale electrical distribution systems requiring dependable 3-phase protection. It works well in panelboards, switchgear assemblies, HVAC equipment, and other applications where maintaining compatibility with existing Q-Line systems is important. Its bolt-on design and older style black face configuration make it especially useful for servicing and maintaining legacy electrical infrastructure without unnecessary system modifications.