TJK636600 **Older Style** - 600Amp Circuit Breaker

TJK636600 **Older Style** - 600 Amp Circuit Breaker

The TJK636600 is a 600-amp, 3-pole molded-case circuit breaker designed for use in commercial and industrial power distribution systems requiring dependable overcurrent and short-circuit protection. Featuring the older-style black-face configuration, this breaker is commonly used as a direct form, fit, and function replacement in existing installations using Type TJK6 equipment. Its thermal magnetic trip unit provides both long-time overload protection and instantaneous response to fault conditions, helping you safeguard electrical systems, equipment, and connected loads.

Built with an internal common trip mechanism, the TJK636600 ensures all poles disconnect simultaneously when a fault is detected, promoting system safety and compliance with electrical protection requirements. This bolt-on Q-Line circuit breaker features load-side lugs for convenient installation and is HACR-rated, making it suitable for applications involving heating, air conditioning, and refrigeration equipment. Designed for demanding electrical environments, these breakers were built to last and continue to serve as a trusted solution in many legacy power distribution systems.

Key Features and Benefits

• 600 Amp Current Rating: 600 Amp current rating for high-capacity power distribution applications.
• 3-Pole Design: 3-pole design protects three-phase electrical systems.
• Type TJK6 Configuration: Type TJK6 molded case circuit breaker configuration.
• Older Style Black Face Design: Older style black face design for compatibility with existing installations.
• Thermal Magnetic Trip Unit: The thermal magnetic trip unit delivers overload and short-circuit protection.
• Internal Common Trip Mechanism: The internal common trip mechanism disconnects all poles simultaneously during fault conditions.
• Bolt-On Mounting Design: Bolt-on mounting design helps ensure secure installation.
• Includes Load-Side Lugs: Includes load-side lugs.
• HACR Rated: HACR rated for heating, air conditioning, and refrigeration applications.
• Form, Fit, and Function Replacement: Suitable as a form, fit, and function replacement in compatible systems.
• Long-Term Service Construction: Constructed for long-term service in commercial and industrial environments.
  

Technical Specifications

• Part Number: TJK636600
  
• Type: TJK6
  
• Circuit Breaker Style: Older Style Black Face
  
• Poles: 3
  
• Amperes: 600A
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Type: Internal Common Trip
  
• Mounting: Bolt-On
  
• Product Line: Q-Line
  
• HACR Rated: Yes
  
• Included Accessories: Load-Side Lugs
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.
• Interrupting Rating:
  • 22kA @ 600VAC
  • 30kA @ 480VAC
  • 42kA @ 240VAC

Material Compliance and Certifications

• HACR Rated: HACR (Heating, Air Conditioning, and Refrigeration) Rated.
• Electrical System Requirements: Designed for use in accordance with applicable electrical system requirements and installation practices.
• Multi-Pole Protection Support: Internal common trip configuration supports multi-pole circuit protection requirements.
• Compatibility Verification: Verify compatibility with specific equipment, panelboards, and installation standards before use.
  

Where It Works Best

• The TJK636600 is well-suited for commercial facilities, industrial plants, manufacturing operations, distribution equipment, motor control applications, HVAC systems, and large three-phase electrical distribution networks. It is frequently used when a 600-amp bolt-on molded-case circuit breaker is required to maintain or replace existing equipment using the TJK6 platform. Its combination of high current capacity, common trip protection, and HACR rating makes it a practical choice for maintaining continuity in established electrical systems.