TJK636600WL **Older Style** - 600Amp Circuit Breaker

TJK636600WL **Older Style** - 600 Amp Circuit Breaker

The TJK636600WL Older Style Black Face molded case circuit breaker is designed for your dependable protection in commercial and industrial electrical distribution systems that require high-amperage circuit interruption and reliable thermal magnetic trip functionality. Built as part of the trusted Q-Line TJK6 series, this 3-pole breaker features a non-interchangeable thermal magnetic trip unit with internal common trip functionality to help protect connected equipment and conductors from overloads and short circuits. Its cable-in/cable-out lug-lug configuration, combined with included line- and load-side lugs, allows for straightforward installation in compatible legacy power distribution systems. With HACR rating capabilities and strong interrupting ratings at multiple voltage levels, the TJK636600WL is well-suited for demanding applications where consistent circuit protection and equipment compatibility matter. The older style black face design also makes it an ideal form, fit, and functional replacement for existing installations using matching legacy components. Built to last and engineered for long-term service, this breaker remains a practical solution for maintaining and servicing existing electrical infrastructure.

Key Features and Benefits

• 600 Amp Molded Case Circuit Breaker: Designed for commercial and industrial power distribution applications requiring dependable high-amperage circuit protection.
• Older Style Black Face Configuration: Provides compatibility with existing legacy electrical systems and installations using matching components.
• 3-Pole Design: Supports three-phase electrical applications commonly found in commercial and industrial environments.
• Thermal Magnetic Trip Unit: Provides protection against overloads and short circuits for connected equipment and conductors.
• Internal Common Trip Mechanism: Helps disconnect all poles simultaneously during fault conditions for improved protection.
• Cable-In/Cable-Out Lug-Lug Construction: Simplifies field wiring connections for compatible power distribution systems.
• Included Line- and Load-Side Lugs: Supports straightforward installation and replacement applications.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration applications.
• Built for Long-Term Durability: Engineered for demanding operating environments and long-term service use.
• Form, Fit, and Functional Replacement: Designed for compatibility with existing Q-Line systems and legacy installations.
  

Technical Specifications

• Part Number: TJK636600WL
  
• Series: TJK6
  
• Type: Molded Case Circuit Breaker
  
• Face Style: Older Style Black Face
  
• Poles: 3
  
• Amperage Rating: 600 Amps
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Configuration: Internal Common Trip
  
• A.I.C. Rating:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• Configuration: Cable-In/Cable-Out (Lug-Lug)
  
• Included Accessories: Line and Load-Side Lugs
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: The TJK636600WL circuit breaker is manufactured for use in compatible low-voltage power distribution systems and is HACR rated for approved heating, cooling, and refrigeration applications.
• Thermal Magnetic Protection Design: Supports compliance with common commercial and industrial electrical protection requirements when installed according to applicable electrical codes and manufacturer guidelines.
  

Where It Works Best

• The TJK636600WL is commonly used in commercial buildings, manufacturing facilities, industrial control systems, mechanical equipment rooms, and large electrical distribution panels requiring dependable high-amperage circuit protection. It is particularly suitable for maintaining and servicing existing Q-Line installations where matching footprint, mounting style, and electrical compatibility are essential. Typical applications include HVAC systems, motor control equipment, panelboards, switchgear assemblies, and heavy-duty distribution circuits operating at 240VAC, 480VAC, or 600VAC.