TJK626450WL - 450Amp Circuit Breaker

TJK626450WL - 450 Amp Circuit Breaker

The TJK626450WL molded case circuit breaker is designed for your dependable circuit protection in commercial and industrial electrical distribution systems requiring a 450 amp, 2-pole configuration. Built as part of the trusted TJK6 Q-Line series, this thermal magnetic circuit breaker combines cable-in/cable-out lug connections with an internal common trip design to help you protect electrical equipment from overloads and short circuits. Its non-interchangeable thermal magnetic trip unit delivers consistent protection characteristics for applications where stable, reliable operation matters day after day.

With interrupting ratings of 22kA at 600VAC, 30kA at 480VAC, and 42kA at 240VAC, the TJK626450WL is well-suited for demanding power distribution environments found in manufacturing facilities, commercial buildings, utility systems, and heavy-duty HVAC applications. The included line- and load-side lugs simplify installation while maintaining compatibility with existing systems that require a Type TJK6 breaker format. Built to last and engineered for dependable service, this breaker provides the form, fit, and function needed for maintaining and servicing established electrical infrastructure.

Key Features and Benefits

• 450 Amp Capacity: Designed for high-current electrical distribution applications requiring dependable overcurrent protection.
• 2-Pole Configuration: Suitable for systems requiring dual-pole protection and internal common trip functionality.
• Thermal Magnetic Trip Unit: Helps safeguard electrical systems against both overload and short-circuit conditions.
• Q-Line Type TJK6 Design: Compatible with systems utilizing TJK6-series molded case circuit breakers.
• Cable-In/Cable-Out Lug Connections: Lug-lug configuration supports straightforward cable termination for line and load conductors.
• Internal Common Trip Mechanism: Allows simultaneous tripping of both poles during fault conditions for improved circuit protection.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment applications where HACR ratings are required.
• Includes Line and Load-Side Lugs: Helps reduce installation complexity by including the necessary lug hardware.
  

Technical Specifications

• Part Number: TJK626450WL
  
• Manufacturer Series: Q-Line
  
• Type: TJK6
  
• Product Type: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage: 450A
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Non-Interchangeable
  
• Connection Type: Cable-In/Cable-Out (Lug-Lug)
  
• Common Trip: Internal Common Trip
  
• HACR Rated: Yes
  
• A.I.C. Rating:
  • 22kA @ 600VAC
  • 30kA @ 480VAC
  • 42kA @ 240VAC
• Dimensions:
  • Height: 10.13 in
  • Width: 8.25 in
  • Depth: 3.81 in
• Included Accessories: Line and Load-Side Lugs
  

Material Compliance and Certifications

• Commercial and Industrial Use: The TJK626450WL circuit breaker is manufactured for use in commercial and industrial electrical systems requiring properly rated overcurrent protection devices.
• HACR Rated: Its HACR rating supports use in HVAC and refrigeration-related applications.
• Installation Compliance: As a molded case circuit breaker designed for established power distribution systems, it is intended to meet applicable operational and installation requirements when installed according to local electrical codes and manufacturer specifications.
  

Where It Works Best

• The TJK626450WL is commonly used in commercial building electrical distribution systems, industrial control and power distribution equipment, manufacturing facilities, HVAC and refrigeration systems, utility and infrastructure applications, existing switchgear and panelboard installations using Type TJK6 breakers, and maintenance and replacement projects requiring compatible form, fit, and function components. Its combination of high amperage capacity, thermal magnetic protection, and Q-Line compatibility makes it a practical choice for maintaining legacy electrical systems that rely on dependable molded case circuit protection.