THJK636500WL - 500Amp Circuit Breaker

THJK636500WL - 500 Amp Circuit Breaker

The THJK636500WL is a 500-amp, 3-pole molded case circuit breaker designed for use in your commercial and industrial electrical distribution systems requiring dependable overcurrent and short-circuit protection. Part of the THJK6 Q-Line series, this breaker features a non-interchangeable thermal magnetic trip unit with internal common trip functionality, helping to protect your connected equipment and conductors during overload and fault conditions. Its cable-in/cable-out (lug-lug) configuration includes both line-side and load-side lugs, simplifying installation in compatible switchboards, panelboards, and distribution equipment. Built to handle demanding electrical environments, the THJK636500WL is engineered for long service life and reliable operation in applications requiring high current capacity.

With interrupting ratings of 25kA at 600VAC, 35kA at 480VAC, and 65kA at 240VAC, this breaker is well-suited for facilities where available fault current levels require substantial protection capability. The unit is also HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment applications where applicable.

Key Features and Benefits

• 500 amp continuous current rating
• 3-pole configuration 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 disconnect all poles during fault conditions
• Cable-in/cable-out (lug-lug) design
• Includes both line-side and load-side lugs
• Q-Line series construction for compatible electrical distribution equipment
• HACR rated for qualifying HVAC and refrigeration applications
• Designed for long-term durability in commercial and industrial environments
• Suitable as a form, fit, and functional replacement where matching specifications are required

Technical Specifications

• Part Number: THJK636500WL
  
• Type: THJK6
  
• Product Family: Q-Line
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Amperage Rating: 500 Amps
  
• Number of Poles: 3
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Function: Internal Common Trip
  
• Configuration: Cable-In/Cable-Out (Lug-Lug)
  
• Line Lugs Included: Yes
  
• Load Lugs Included: Yes
  
• A.I.C. Rating: 25kA @ 600VAC; 35kA @ 480VAC; 65kA @ 240VAC
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated
• Manufactured for use in accordance with applicable electrical system requirements and installation standards
• Designed for use in commercial and industrial power distribution applications
• Verify all ratings, equipment compatibility, and installation requirements before application

Where It Works Best

• The THJK636500WL is commonly used in commercial buildings, manufacturing facilities, industrial plants, institutional properties, and large-scale HVAC installations requiring a 500A, 3-pole molded case circuit breaker. Its lug-lug design and high interrupting ratings make it a practical choice for feeders, distribution sections, motor loads, and other high-capacity power distribution circuits where equipment protection and code-compliant overcurrent protection are essential. It is particularly well-suited for applications that require a breaker matching the original form, fit, and functional characteristics of compatible THJK6-series installations.