TJK626500 - 500Amp Circuit Breaker

TJK626500 - 500 Amp Circuit Breaker

The TJK626500 molded case circuit breaker is designed for dependable circuit protection in your commercial and industrial electrical distribution systems that require high-amperage protection. Built as part of the trusted Q-Line series, this 2-pole, 500 amp breaker features a thermal magnetic trip unit with internal common trip to help protect connected equipment from overloads and short circuits. Its bolt-on mounting design supports secure installation in compatible panelboard and switchgear applications, while the included load-side lugs simplify conductor termination during maintenance or replacement projects.

With interrupting ratings of 22kA at 600VAC, 30kA at 480VAC, and 42kA at 240VAC, the TJK626500 is suited for demanding electrical systems that require reliable fault protection and compatibility with existing infrastructure. The non-interchangeable trip configuration helps maintain consistent protection settings, making it a practical choice for facilities seeking a form, fit, and functional replacement breaker built to last. HACR rating support also makes this breaker appropriate for heating, air conditioning, and refrigeration equipment applications where specified.

Key Features and Benefits

• 500 Amp Current Rating: 500 Amp Current Rating for high-capacity commercial and industrial power distribution.
• 2-Pole Configuration: 2-Pole Configuration designed for compatible AC electrical systems.
• Thermal Magnetic Trip Unit: Thermal Magnetic Trip Unit provides protection against overloads and short circuits.
• Internal Common Trip Mechanism: Internal Common Trip Mechanism helps disconnect all poles simultaneously during fault conditions.
• Bolt-On Mounting Design: Bolt-On Mounting Design supports stable installation in designated electrical equipment.
• Q-Line Series Compatibility: Q-Line Series Compatibility for matching form and fit requirements in existing systems.
• HACR Rated: HACR Rated for use with heating, air conditioning, and refrigeration equipment where applicable.
• Includes Load-Side Lugs: Includes Load-Side Lugs to assist with installation and conductor connections.
• Built for Long Service Life: Built for long service life in demanding operating environments.
  

Technical Specifications

• Part Number: TJK626500
  
• Type: TJK6
  
• Product Category: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperes: 500A
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Non-Interchangeable with Internal Common Trip
  
• Mounting Style: Bolt-On
  
• Series: Q-Line
  
• A.I.C. Rating:
  • 22kA @ 600VAC
  • 30kA @ 480VAC
  • 42kA @ 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 for applicable HVAC and refrigeration system installations.
• Applicable Standards: Manufactured for use in accordance with applicable molded case circuit breaker standards.
• Equipment Compatibility: Designed for compatibility within properly rated electrical distribution equipment.
• Thermal Magnetic Protection: Thermal magnetic protection helps support safe operation of connected electrical systems when installed according to code requirements.
  

Where It Works Best

• The TJK626500 is commonly used in commercial buildings, industrial facilities, manufacturing environments, mechanical equipment rooms, HVAC distribution systems, electrical distribution panels and switchgear, replacement projects requiring Q-Line compatible breakers, and high-amperage branch and feeder circuit protection applications. Its combination of high amperage capacity, bolt-on installation, and thermal magnetic protection makes it well suited for maintaining and servicing existing electrical infrastructure where dependable overcurrent protection is required.