TJK426F000 - 400Amp Max. *Frame Only*

TJK426F000 - 400 Amp Max. *Frame Only*

The TJK426F000 molded case circuit breaker frame is used in your commercial and industrial electrical distribution systems that require a dependable 400 amp, 2-pole breaker configuration. As part of the Q-Line series, this Type TJK4 breaker frame is designed for compatibility with existing equipment and applications where bolt-on installation is required. Its molded case housing helps you protect internal components while standing up to everyday operating conditions found in demanding electrical environments.

With interrupting ratings of 22k at 600VAC, 30k at 480VAC, and 42k at 240VAC, the TJK426F000 is suited for a variety of power distribution applications. The bolt-on design helps create a secure connection inside panelboards and switchgear, making it a practical option for maintenance, repair, or replacement projects involving compatible systems. This unit is also HACR rated, allowing use in approved heating, air conditioning, and refrigeration equipment applications.

Built for long service life and dependable operation, the TJK426F000 remains a solid choice for facilities looking to maintain existing electrical infrastructure without changing system design or layout.

Key Features and Benefits

• 400 amp current rating: Designed for commercial and industrial electrical distribution systems requiring dependable high-amperage protection.
• 2-pole molded case circuit breaker frame: Built in a Type TJK4 configuration for compatibility with existing equipment and applications.
• Bolt-on mounting design: Helps create a secure connection inside panelboards and switchgear for maintenance, repair, or replacement projects.
• Part of the Q-Line product family: Intended for use with compatible Q-Line systems and electrical distribution equipment.
• HACR rated for HVAC applications: Approved for use in heating, air conditioning, and refrigeration equipment applications.
• Durable molded case construction: Helps protect internal components while standing up to demanding operating conditions and long-term use.
  

Technical Specifications

• Part Number: TJK426F000
  
• Product Type: Molded Case Circuit Breaker Frame Only
  
• Series: Q-Line
  
• Type: TJK4
  
• Poles: 2
  
• Amperage: 400A
  
• A.I.C. Rating:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• Mounting Type: Bolt-On
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in
  • Width: 8.25 in
  • Depth: 3.81 in

Material Compliance and Certifications

• HACR Rated: Approved for use in compatible heating, air conditioning, and refrigeration equipment applications.
• Industry Standards: Manufactured for use in compatible electrical distribution equipment and designed to meet applicable industry standards for molded case circuit breaker applications.
  

Where It Works Best

• The TJK426F000 is commonly installed in commercial electrical systems, industrial facilities, HVAC equipment panels, distribution switchboards, manufacturing environments, service and maintenance replacement projects, and existing Q-Line compatible systems. Its combination of high amperage capacity, bolt-on installation, and multiple voltage ratings makes it well suited for maintaining and servicing established electrical systems.