TJK626500WL **Older Style** 500Amp Circuit Breaker

TJK626500WL **Older Style** 500 Amp Circuit Breaker

The TJK626500WL molded case circuit breaker is designed for your dependable protection in commercial and industrial electrical distribution systems, where maintaining compatibility with existing equipment is critical. Built as part of the Type TJK6 Q-Line family, this 2-pole, 500-amp breaker features a thermal magnetic trip unit with internal common trip functionality to help you safeguard connected equipment from overloads and short circuits. Its cable-in/cable-out lug-lug configuration makes it a practical fit for a wide range of panel and switchgear applications, especially in facilities operating legacy electrical infrastructure.

This breaker includes both line-side and load-side lugs for streamlined installation and secure conductor termination. The older style black face design helps match existing installations where appearance and form-fit compatibility are important during maintenance or replacement projects. With solid interrupting ratings at multiple voltage classes and HACR certification, the TJK626500WL is built to handle demanding electrical environments while supporting long-term system continuity. Like many heavy-duty molded case breakers from this era, it was built to last and continues to serve reliably in properly maintained systems.

Key Features and Benefits

• 500 Amp Continuous Current Rating: 500 Amp continuous current rating for large commercial and industrial power distribution applications.
• 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.
• Q-Line Type TJK6 Design: Q-Line Type TJK6 design supports form, fit, and functional replacement requirements in existing equipment.
• Cable-in/Cable-out (Lug-Lug) Configuration: Cable-in/Cable-out (Lug-Lug) configuration simplifies conductor connections.
• Includes Line and Load-Side Lugs: Includes line and load-side lugs for added installation convenience.
• HACR Rated: HACR rated for heating, air conditioning, and refrigeration equipment applications.
• Older Style Black Face: Older style black face helps maintain visual consistency in legacy electrical assemblies.
• Designed for Long Service Life: Designed for long service life in properly maintained electrical systems.
  

Technical Specifications

• Part Number: TJK626500WL
  
• Breaker Type: Molded Case Circuit Breaker
  
• Series / Family: Q-Line
  
• Type: TJK6
  
• Poles: 2
  
• Amperage Rating: 500A
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Function: Internal Common Trip
  
• Configuration: Cable-in/Cable-out (Lug-Lug)
  
• Included Connections: Line and Load-Side Lugs
  
• A.I.C. Rating:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in
  • Width: 8.25 in
  • Depth: 3.81 in
• Face Style: Older Style Black Face
  

Material Compliance and Certifications

• HACR Certification: The TJK626500WL circuit breaker is manufactured for use in commercial and industrial electrical distribution systems and carries an HACR rating for compatible HVAC and refrigeration applications.
• Established Protection Requirements: Its thermal magnetic protection design supports established overcurrent protection requirements commonly used in legacy power distribution equipment.
• Installation Compliance: Proper installation and application should always follow applicable NEC guidelines, local electrical codes, and manufacturer specifications.
  

Where It Works Best

• The TJK626500WL is commonly used in commercial buildings, industrial facilities, manufacturing environments, mechanical and HVAC distribution systems, existing Q-Line panelboards and switchgear, maintenance and replacement projects requiring older style black face breakers, and electrical systems where form, fit, and compatibility with installed equipment are important. Its combination of high ampacity, dependable protection, and compatibility with legacy systems makes it well-suited for facilities that rely on established electrical infrastructure to keep operations running smoothly.