TJK426250WL - 250Amp Circuit Breaker

TJK426250WL - 250 Amp Circuit Breaker

The TJK426250WL molded case circuit breaker is designed for your dependable circuit protection in commercial and industrial electrical distribution systems where consistent performance and compatibility matter. Built as part of the trusted TJK4 Q-Line series, this 2-pole, 250-amp breaker features a thermal magnetic trip unit with internal common trip functionality to help protect your electrical equipment and conductors from overloads and short circuits. Its cable-in/cable-out lug-lug configuration simplifies installation in a variety of panel and switchboard applications. At the same time, the included line- and load-side lugs provide added convenience for replacement or maintenance projects. Engineered for long service life and built to last, the TJK426250WL is commonly used in demanding environments that require reliable overcurrent protection with established system compatibility.

Key Features and Benefits

• 250A Molded Case Circuit Breaker: Designed for commercial and industrial power distribution systems.
• 2-Pole Configuration: Suitable for a wide range of electrical protection applications.
• Thermal Magnetic Trip Unit: Delivers dependable overload and short-circuit protection.
• Internal Common Trip Mechanism: Helps disconnect both poles simultaneously during fault conditions.
• Q-Line Design: Supports compatibility with existing electrical equipment and legacy installations.
• Cable-in/Cable-out (Lug-Lug) Connection Style: Allows straightforward field installation.
• Included Line-Side and Load-Side Lugs: Provide added installation convenience.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration applications.
• Compact Footprint: Helps accommodate tighter panel and enclosure layouts.
• Built for Long-Term Durability: Designed for demanding operating environments.
  

Technical Specifications

• Part Number: TJK426250WL
  
• Series / Type: TJK4 Q-Line
  
• Breaker Type: Molded Case Circuit Breaker
  
• Trip Unit: Non-Interchangeable Thermal Magnetic Trip Unit
  
• Poles: 2
  
• Amperage Rating: 250A
  
• Interrupting Rating:
  • 22k A.I.C. @ 600VAC
  • 30k A.I.C. @ 480VAC
  • 42k A.I.C. @ 240VAC
• Connection Type: Cable-in/Cable-out (Lug-Lug)
  
• Trip Configuration: Internal Common Trip
  
• HACR Rated: Yes
  
• Included Accessories: Line and Load-Side Lugs
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: Rated for use in heating, air conditioning, and refrigeration equipment applications.
• Industry Standards: Manufactured to meet applicable industry standards for molded case circuit breakers.
• Commercial and Industrial Use: Designed for use in appropriately rated commercial and industrial electrical systems.
  

Where It Works Best

• The TJK426250WL is well-suited for commercial buildings, industrial facilities, manufacturing equipment, distribution panels, and HVAC-related electrical systems requiring 250-amp overcurrent protection. It is often used in maintenance, repair, and replacement projects where matching form, fit, and function within existing Q-Line electrical infrastructure is important. Its lug-lug configuration and established breaker design make it a practical solution for facilities seeking dependable protection in legacy or continuing service applications.