TJJ436125 - 125Amp Circuit Breaker

TJJ436125 - 125 Amp Circuit Breaker

The TJJ436125 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 3-pole, 125-amp breaker features a thermal magnetic trip unit with internal common trip functionality to help protect connected equipment from overloads and short circuits. Its bolt-on mounting style supports secure installation in compatible panelboards and switchgear applications, while the included load-side lugs simplify field wiring. Designed with durability in mind, the TJJ436125 is commonly used in facilities that require reliable protection for HVAC systems, motor loads, lighting distribution, and other heavy-duty electrical applications.

With HACR rating capability and strong interrupting performance at multiple voltage levels, this breaker is well-suited for demanding environments where maintaining safe and stable power distribution is essential. Its non-interchangeable trip unit configuration helps you maintain consistent protection settings throughout the life of the breaker. Whether installed in manufacturing facilities, commercial buildings, or institutional power systems, the TJJ436125 provides the form, fit, and function needed for compatible electrical distribution equipment.

Key Features and Benefits

• 125 Amp Molded Case Circuit Breaker: Designed for commercial and industrial power distribution applications requiring dependable protection.
• 3-Pole Configuration: Suitable for use in three-phase electrical systems commonly found in industrial and commercial facilities.
• Thermal Magnetic Trip Unit: Helps protect connected equipment from overloads and short circuits through coordinated thermal and magnetic response.
• Internal Common Trip Mechanism: Enhances coordinated circuit interruption for improved system protection.
• Q-Line Bolt-On Design: Supports secure installation in compatible panelboards and switchgear equipment.
• HACR Rated: Approved for use in heating, air conditioning, and refrigeration applications.
• Includes Load-Side Lugs: Simplifies field wiring and installation requirements.
• Non-Interchangeable Trip Unit: Helps maintain fixed protection characteristics throughout the life of the breaker.
• Built for Long-Term Use: Designed to withstand demanding electrical environments in commercial and industrial facilities.
  

Technical Specifications

• Part Number: TJJ436125
  
• Type: TJJ
  
• Product Category: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage: 125A
  
• Voltage & A.I.C. Ratings: 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

• HACR Rated: Suitable for compatible HVAC and refrigeration system applications.
• Electrical System Compatibility: Designed for use in accordance with applicable electrical system standards and properly rated equipment.
• Molded Case Construction: Intended for commercial and industrial electrical environments requiring durable protection solutions.
• Q-Line Compatibility: Manufactured for compatibility with designated Q-Line distribution equipment.
  

Where It Works Best

• The TJJ436125 circuit breaker is commonly used in commercial buildings, manufacturing and industrial power distribution systems, HVAC and refrigeration equipment installations, motor control and branch circuit protection, electrical panelboards and switchgear systems, and institutional or utility-related electrical infrastructure. Its combination of bolt-on installation, thermal magnetic protection, and high interrupting capacity makes it a practical choice for facilities requiring dependable protection in existing compatible electrical systems.