TJK636450WL - 450Amp Circuit Breaker

TJK636450WL - 450 Amp Circuit Breaker

When your dependable circuit protection matters, the TJK636450WL molded case circuit breaker is built to handle the job. This 3-pole, 450-amp breaker is part of the Q-Line Type TJK6 series and is commonly used in commercial and industrial electrical distribution systems that require consistent overcurrent protection. The breaker uses a thermal-magnetic trip unit with an internal common trip, helping you disconnect all poles together during overloads or short-circuit conditions. Its lug-lug cable-in/cable-out design makes it a practical choice for installations where direct conductor termination is required, and it includes both line-side and load-side lugs. With interrupting capacities rated at 42k @ 240VAC, 30k @ 480VAC, and 22k @ 600VAC, this breaker fits a wide range of three-phase power applications, including HVAC equipment, distribution panels, switchgear, and industrial control systems. Built for long service life and compatibility with existing equipment, the TJK636450WL is often selected for maintenance, repair, and replacement projects where matching form and fit are important.

Key Features and Benefits

• 450 Amp Molded Case Circuit Breaker: Designed for dependable protection in commercial and industrial electrical distribution systems.
• 3-Pole Configuration: Suitable for three-phase electrical systems requiring coordinated circuit interruption.
• Thermal Magnetic Trip Unit: Provides overload and short-circuit protection using a thermal-magnetic trip mechanism.
• Internal Common Trip Design: Helps disconnect all poles together during overloads or fault conditions.
• Lug-Lug Connection Style: Cable-in/cable-out configuration allows direct conductor termination for practical installation flexibility.
• Includes Line and Load-Side Lugs: Equipped with both line-side and load-side lugs for installation convenience.
• HACR Rated: Suitable for HVAC and refrigeration system applications.
• Built for Demanding Environments: Designed for lasting use in commercial and industrial electrical systems.
  

Technical Specifications

• Part Number: TJK636450WL
  
• Type: TJK6
  
• Poles: 3
  
• Amperage: 450A
  
• Trip Unit: Thermal Magnetic
  
• Trip Configuration: Internal Common Trip
  
• Connection Type: Lug-Lug
  
• A.I.C. Rating @ 240VAC: 42k
  
• A.I.C. Rating @ 480VAC: 30k
  
• A.I.C. Rating @ 600VAC: 22k
  
• 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 applications requiring dependable circuit protection.
• Molded Case Circuit Breaker Construction: Built for commercial and industrial power distribution applications.
• Code Compatibility: Designed for installation in compatible electrical equipment and systems in accordance with applicable electrical codes.
  

Where It Works Best

• The TJK636450WL is commonly used in commercial buildings, industrial facilities, HVAC and refrigeration systems, electrical distribution equipment, switchboards and panelboards, manufacturing equipment, motor and mechanical system protection, and replacement applications requiring Type TJK6 compatibility.