TJJ426175 - 175Amp Circuit Breaker

TJJ426175 - 175 Amp Circuit Breaker

The TJJ426175 molded case circuit breaker is designed for dependable circuit protection in your commercial and industrial electrical distribution systems where consistent performance and compatibility matter. Built as part of the trusted Q-Line family, this 2-pole, 175-amp breaker features a thermal magnetic trip unit with internal common trip functionality to help you protect connected equipment from overloads and short circuits. Its bolt-on mounting design supports secure installation in compatible panelboards and switchgear, while the included load-side lugs simplify field connections.

Engineered for systems operating up to 600 VAC, the TJJ426175 is HACR-rated and suited for a wide range of HVAC, distribution, and power management applications. The non-interchangeable trip unit configuration helps maintain factory-calibrated protection settings, making it a practical choice for maintaining existing electrical infrastructure and ensuring proper fit and function in legacy systems. Built to last and designed for reliable operation, this breaker remains a dependable solution for facilities that require consistent protection and compatibility with existing equipment.

Key Features and Benefits

• 175 Amp Current Rating: Designed for commercial and industrial power distribution applications requiring dependable overcurrent protection.
• 2-Pole Configuration: Designed for compatible AC electrical systems requiring dual-pole protection.
• Thermal Magnetic Trip Unit: Helps protect connected equipment against overloads and short circuits through dependable trip functionality.
• Internal Common Trip Design: Allows simultaneous tripping across both poles for coordinated circuit protection.
• Bolt-On Mounting: Supports secure installation and dependable electrical contact in compatible equipment.
• Included Load-Side Lugs: Simplifies field wiring connections during installation and maintenance.
• HACR Rated: Approved for use in heating, air conditioning, and refrigeration equipment applications.
• Non-Interchangeable Trip Unit: Maintains fixed factory protection settings for reliable system coordination.
• Form, Fit, and Functional Replacement: Designed to maintain compatibility in existing electrical systems and infrastructure.
• Q-Line Construction: Supports long-term use in demanding commercial and industrial electrical environments.
  

Technical Specifications

• Part Number: TJJ426175
  
• Type: TJJ
  
• Product Family: Q-Line
  
• Poles: 2
  
• Amperage Rating: 175A
  
• Voltage Ratings: 600VAC Maximum
  
• A.I.C. Rating:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• Trip Unit: Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Mounting Type: Bolt-On
  
• Included Connections: Load-Side Lugs
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: Approved for HVAC and refrigeration equipment applications where compliant overcurrent protection is required.
• Industry Standards: Manufactured for use in accordance with applicable molded case circuit breaker standards and intended for installation in compatible electrical distribution equipment following local electrical codes and NEC requirements.
• Thermal Magnetic Protection Technology: Supports reliable overcurrent protection in commercial and industrial electrical environments.
  

Where It Works Best

• The TJJ426175 circuit breaker is commonly used in commercial buildings, industrial facilities, manufacturing environments, and large-scale HVAC systems requiring dependable overcurrent protection. It works well in existing Q-Line compatible electrical distribution systems where maintaining proper fit, function, and electrical ratings is essential. This breaker is also suitable for panelboards, switchgear, motor distribution systems, and facility power management applications operating at higher AC voltage capacities.