THJK636500 - 500Amp Circuit Breaker

THJK636500 - 500 Amp Circuit Breaker

The THJK636500 molded case circuit breaker is a 500-amp, 3-pole circuit breaker designed for use in your commercial and industrial power distribution systems requiring dependable overcurrent and short-circuit protection. As part of the THJK6 Series, this breaker features a non-interchangeable thermal magnetic trip unit with internal common trip functionality, helping disconnect all poles simultaneously when an overload or fault condition occurs. Its bolt-on mounting configuration supports secure installation in compatible equipment, while the included load-side lugs simplify conductor termination. Built for applications operating up to 600VAC, the THJK636500 is engineered to provide reliable circuit protection for feeders, distribution panels, switchboards, and other electrical systems where high-current protection is required. The breaker is also HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment applications when installed in accordance with applicable electrical codes and manufacturer specifications. Designed for long service life and dependable operation, this circuit breaker provides the form, fit, and function needed for maintaining or servicing existing electrical infrastructure.

Key Features and Benefits

• 500 Amp Current Rating: 500 Amp current rating for high-capacity power distribution applications.
• 3-Pole Configuration: 3-pole configuration for the protection of three-phase electrical systems.
• THJK6 Series: THJK6 Series molded case circuit breaker.
• Bolt-On Design: Bolt-on design for secure installation in compatible assemblies.
• Thermal Magnetic Trip Unit: The thermal magnetic trip unit responds to both overloads and short circuits.
• Internal Common Trip: The internal common trip mechanism disconnects all poles during fault conditions.
• Non-Interchangeable Trip Unit: Non-interchangeable trip unit configuration.
• HACR Rated: HACR rated for qualifying HVAC and refrigeration applications.
• Load-Side Lugs Included: Includes load-side lugs for convenient conductor connections.
• Long-Term Service: Designed for long-term service in commercial and industrial electrical systems.
  

Technical Specifications

• Part Number: THJK636500
  
• Series / Type: THJK6
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage Rating: 500 Amps
  
• Trip Unit: Thermal Magnetic
  
• Trip Configuration: Internal Common Trip
  
• Trip Unit Style: Non-Interchangeable
  
• Mounting: Bolt-On
  
• Voltage & Interrupting Rating:
  • 25kA @ 600VAC
  • 35kA @ 480VAC
  • 65kA @ 240VAC
• 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: HACR Rated.
• Commercial and Industrial Use: Manufactured for use in commercial and industrial electrical distribution systems.
• Industry Standards: Designed to meet applicable industry standards for molded case circuit breakers.
• Installation Requirements: Suitable for installation in properly rated equipment and systems when used according to manufacturer specifications and applicable electrical codes.
  

Where It Works Best

• Commercial buildings and facilities.
• Industrial manufacturing operations.
• Distribution panels and switchboards.
• Feeder circuit protection.
• Mechanical and HVAC equipment installations.
• Refrigeration system power distribution.
• Electrical infrastructure maintenance and replacement projects.
• Existing systems require a compatible THJK6 Series 500A circuit breaker.
• Its combination of a high ampere rating, common-trip protection, and bolt-on mounting design makes it a practical choice for protecting critical three-phase power distribution circuits in demanding commercial and industrial environments.