THJK626600 - 600Amp Circuit Breaker

THJK626600 - 600 Amp Circuit Breaker

The THJK626600 circuit breaker is a 2-pole, 600-amp molded case circuit breaker designed for use in your commercial and industrial electrical distribution systems where dependable overcurrent and short-circuit protection is required. As part of the THJK6 Q-Line series, this bolt-on breaker features a thermal-magnetic trip unit with a non-interchangeable trip and an internal common trip mechanism, helping to protect your connected equipment and conductors from damage caused by overloads and fault conditions. Built for long service life in demanding environments, the THJK626600 is HACR rated and includes load-side lugs for straightforward installation. Its high interrupting capacity ratings make it suitable for a wide range of applications that require reliable circuit protection across multiple voltage levels.

Key Features and Benefits

• 600-amp continuous current rating: For high-capacity electrical distribution systems.
• 2-pole configuration: For protection of 600VAC circuits.
• THJK6 Q-Line molded case circuit breaker design: Built as part of the THJK6 Q-Line series.
• Bolt-on mounting style: Helps provide a secure connection within compatible equipment.
• Thermal magnetic trip unit: Delivers both overload and short-circuit protection.
• Non-interchangeable trip unit: Maintains the factory-configured protection settings.
• Internal common trip mechanism: Ensures simultaneous opening of all poles during fault conditions.
• HACR rated: For use in heating, air conditioning, and refrigeration applications.
• Includes load-side lugs: To simplify installation.
• Built for demanding environments: Designed to withstand the demands of commercial and industrial power distribution environments.
  

Technical Specifications

• Part Number: THJK626600
  
• Type: THJK6
  
• Series: Q-Line
  
• Product Type: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage Rating: 600A
  
• Trip Unit: Thermal Magnetic
  
• Trip Configuration: Internal Common Trip
  
• Trip Style: Non-Interchangeable
  
• Mounting Style: Bolt-On
  
• HACR Rated: Yes
  
• Included Accessories: Load-Side Lugs
  
• Interrupting Ratings:
  • 25kA @ 600VAC
  • 35kA @ 480VAC
  • 65kA @ 240VAC
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: Heating, Air Conditioning, and Refrigeration Rated.
• Commercial and Industrial Applications: Manufactured for use in commercial and industrial electrical distribution applications.
• Industry Standards: Designed to meet applicable industry standards for molded case circuit breaker construction and operation.
• Code Compliance: Suitable for installations requiring properly rated overcurrent protection devices in accordance with applicable electrical codes and equipment specifications.
  

Where It Works Best

• The THJK626600 600A circuit breaker is commonly used in commercial buildings, manufacturing facilities, institutional properties, large mechanical systems, and industrial power distribution equipment. Its combination of a high amperage rating, bolt-on mounting configuration, and thermal-magnetic protection makes it well-suited for switchboards, panelboards, distribution systems, HVAC equipment, and other applications requiring dependable circuit protection. It is particularly useful where a form, fit, and functional replacement is needed for compatible THJK6 Q-Line installations while maintaining existing system design requirements.