THJK636600WL - 600Amp Circuit Breaker

THJK636600WL - 600 Amp Circuit Breaker

The THJK636600WL is a 600-amp600-amp, 3-pole molded-case circuit breaker designed for use in your commercial and industrial power distribution systems that require dependable overcurrent and short-circuit protection. Part of the THJK6 Series, this circuit breaker features a thermal-magnetic trip unit with an internal common trip mechanism, helping protect electrical equipment and conductors from overloads and fault conditions. Its cable-in/cable-out (lug-lug) configuration includes both line-side and load-side lugs, simplifying installation in a wide range of distribution and feeder applications.

Built for demanding electrical environments, the THJK636600WL is rated for 600VAC systems and offers interrupting capacities of 25kA at 600VAC, 35kA at 480VAC, and 65kA at 240VAC. The non-interchangeable trip design helps you to maintain consistent protection settings throughout the life of the breaker. As an HACR-rated circuit breaker, it is suitable for applications involving heating, air conditioning, and refrigeration equipment where properly specified. Designed with durability in mind, this breaker provides the form, fit, and function needed for maintaining existing electrical distribution systems and equipment.

Key Features and Benefits

• 600 Amp current rating for high-capacity power distribution applications
• 3-pole design for three-phase electrical systems
• THJK6 Series molded case circuit breaker
• The thermal magnetic trip unit provides overload and short-circuit protection
• The internal common trip mechanism helps ensure coordinated pole operation during fault conditions
• Cable-in/cable-out (lug-lug) configuration for straightforward field installation
• Includes both line-side and load-side lugs
• HACR rated for specified heating, air conditioning, and refrigeration applications
• Non-interchangeable trip unit maintains fixed protection settings
• Suitable for commercial, industrial, and facility electrical distribution systems
• Built to provide long-term service in demanding environments
  

Technical Specifications

• Part Number: THJK636600WL
  
• Series: THJK6
  
• Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage Rating: 600A
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Configuration: Cable-In / Cable-Out (Lug-Lug)
  
• Included Accessories: Line and Load-Side Lugs
  
• Interrupting Rating: 25kA @ 600VAC
  
• Interrupting Rating: 35kA @ 480VAC
  
• Interrupting Rating: 65kA @ 240VAC
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: For use in heating, air conditioning, and refrigeration applications where applicable.
• Industry Standards: Designed and manufactured for installation in accordance with applicable electrical system requirements and industry standards.
• Qualified Installation: Intended for use by qualified electrical professionals following local codes and regulations.
  

Where It Works Best

• The THJK636600WL is well-suited for commercial buildings, industrial facilities, manufacturing plants, distribution equipment, switchboards, panelboards, and large feeder circuits requiring 600-amp overcurrent protection. Its high interrupting ratings and three-pole configuration make it a practical choice for protecting three-phase power systems, motor loads, HVAC equipment, and other critical electrical infrastructure where dependable circuit protection is required.