TJK626600 **Older Style** 600Amp Circuit Breaker

TJK626600 **Older Style** 600 Amp Circuit Breaker

The TJK626600 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 trusted Q-Line family, this 2-pole, 600-amp breaker features a thermal-magnetic trip unit with an internal common trip for reliable overcurrent and short-circuit protection. Its older-style black-face configuration makes it a practical replacement for legacy installations that require matching specifications and mounting arrangements.

This bolt-on circuit breaker features load-side lugs for streamlined installation and is HACR-rated for heating, air conditioning, and refrigeration applications. With interrupting capacities rated at 22k A.I.C. at 600VAC, 30k A.I.C. at 480VAC, and 42k A.I.C. at 240VAC, the TJK626600 is well-suited for your demanding power distribution environments where durability and consistent operation are essential. Designed with a non-interchangeable trip unit, this breaker helps maintain the original protection characteristics required by many existing electrical systems. Built to last and engineered for long-term service, it remains a dependable choice for maintenance teams, contractors, and facility operators working with established infrastructure.

Key Features and Benefits

• 600-amp molded case circuit breaker: Designed for commercial and industrial power systems.
• Older style black face configuration: Provides compatibility with legacy equipment setups.
• 2-pole design: Supports dependable circuit protection.
• Thermal magnetic trip unit: Responds to both overloads and short circuits.
• Internal common trip mechanism: Helps disconnect both poles simultaneously during fault conditions.
• Q-Line bolt-on mounting design: Supports secure installation.
• Includes load-side lugs: Adds installation convenience.
• HACR rated: Suitable for HVAC and refrigeration applications.
• Built for long service life: Designed for demanding electrical environments.
• Non-interchangeable trip unit: Helps maintain original system protection settings.
  

Technical Specifications

• Part Number: TJK626600
  
• Type: TJK6
  
• Product Style: Older Style Black Face
  
• Poles: 2
  
• Amperage: 600 Amps
  
• Voltage / A.I.C. Rating:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• Trip Unit: Thermal Magnetic
  
• Trip Configuration: Internal Common Trip
  
• Mounting Style: Bolt-On
  
• Line Family: Q-Line
  
• 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: Approved for use in heating, ventilation, air conditioning, and refrigeration systems.
• Commercial and Industrial Applications: Manufactured for use in commercial and industrial electrical distribution applications.
• Industry Standards: Designed to meet applicable industry standards for molded case circuit breakers.
• Thermal Magnetic Protection: Suitable for installations requiring thermal magnetic overcurrent protection.
  

Where It Works Best

• The TJK626600 circuit breaker is commonly used in commercial buildings and industrial facilities, electrical distribution panels and switchboards, HVAC and refrigeration equipment installations, manufacturing environments requiring high-amperage protection, maintenance and replacement projects involving legacy Q-Line systems, and facilities seeking compatible replacement breakers for existing infrastructure.