TJK426125WL - 125Amp Circuit Breaker

TJK426125WL - 125 Amp Circuit Breaker

The TJK426125WL molded case circuit breaker is designed for dependable protection in your commercial and industrial electrical distribution systems that require a 2-pole, 125-amp configuration. Built as part of the trusted TJK4 Q-Line series, this breaker features a thermal-magnetic trip unit with an internal common trip to help you safeguard electrical equipment from overloads and short circuits. Its cable-in/cable-out lug-lug design simplifies installation in compatible panel and switchgear applications, while the included line- and load-side lugs provide added convenience for field wiring. With interrupting capacities rated up to 22 kA at 600 VAC, this breaker is well-suited for demanding environments where reliable circuit protection and long service life are critical. The TJK426125WL is also HACR rated, making it a practical fit for HVAC-related applications and legacy power distribution systems that require compatible replacement components built to last.

Key Features and Benefits

• 125 Amp Molded Case Circuit Breaker: Designed for commercial and industrial power systems.
• 2-Pole Configuration: Provides reliable multi-phase circuit protection.
• Type TJK4 Q-Line Breaker: Suitable for compatible replacement applications.
• Thermal Magnetic Trip Unit: Responds to overloads and short circuits.
• Internal Common Trip Mechanism: Helps improve coordinated circuit interruption.
• Cable-In/Cable-Out (Lug-Lug) Design: Supports straightforward installation.
• Included Accessories: Includes both line-side and load-side lugs.
• HACR Rated: Suitable for HVAC and air conditioning equipment applications.
• Compact Molded Case Construction: Helps conserve panel space.
• Built for Long-Term Use: Suitable for demanding electrical environments.
  

Technical Specifications

• Part Number: TJK426125WL
  
• Type: TJK4
  
• Product Category: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage Rating: 125 Amps
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• A.I.C. Rating:
  • 22kA @ 600VAC
  • 30kA @ 480VAC
  • 42kA @ 240VAC
• Connection Type: 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: Suitable for heating, air conditioning, and refrigeration applications.
• Commercial and Industrial Use: Designed for use in compatible commercial and industrial electrical distribution systems.
• Durable Molded Case Construction: Supports operation in demanding environments.
• Industry Electrical Protection Standards: Manufactured to meet applicable industry electrical protection standards for its class and ratings.
  

Where It Works Best

• The TJK426125WL is commonly used in commercial buildings, manufacturing facilities, HVAC equipment installations, distribution panels, and industrial power systems that require a compatible 125A, 2-pole molded-case circuit breaker. Its lug-lug configuration and Q-Line compatibility make it a suitable replacement option for maintaining existing electrical infrastructure where matching form, fit, and function are essential.