TJK426175WL - 175Amp Circuit Breaker

TJK426175WL - 175 Amp Circuit Breaker

The TJK426175WL molded case circuit breaker is designed for your dependable protection in commercial and industrial electrical distribution systems where maintaining compatibility with existing equipment is essential. Built as part of the trusted TJK4 Q-Line series, this 2-pole, 175-amp breaker features a thermal-magnetic trip unit with internal common trip functionality to help you safeguard circuits against overloads and short circuits. Its cable-in/cable-out lug-lug configuration simplifies installation in many legacy and existing panel applications, while the included line- and load-side lugs help support proper conductor termination. With interrupting ratings up to 42k A.I.C. at 240VAC, this breaker is well-suited for demanding electrical environments that require reliable fault interruption and consistent operation. Designed for long-term service, the TJK426175WL delivers the form, fit, and function needed to maintain and service compatible electrical systems.

Key Features and Benefits

• 175 Amp Continuous Current Rating: Supports commercial and industrial power distribution applications requiring medium-to-high current protection.
• 2-Pole Configuration: Designed for systems requiring dual-pole circuit protection and internal common trip operation.
• Thermal Magnetic Trip Unit: Combines thermal overload protection with magnetic short-circuit protection for dependable circuit safety.
• Q-Line TJK4 Series Compatibility: Suitable for maintaining and servicing compatible existing electrical distribution equipment.
• Cable-In/Cable-Out Lug-Lug Design: Allows for direct cable terminations using included line- and load-side lugs.
• HACR Rated: Approved for use in heating, air conditioning, and refrigeration applications where HACR-rated protection is specified.
• Built to Last: Constructed for long service life in demanding commercial and industrial environments.
  

Technical Specifications

• Part Number: TJK426175WL
  
• Series: TJK4 Q-Line
  
• Product Type: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage: 175A
  
• Trip Unit: Thermal Magnetic
  
• Trip Type: Internal Common Trip
  
• Configuration: Cable-In/Cable-Out (Lug-Lug)
  
• Included Accessories: Line and Load-Side Lugs
  
• A.I.C. Rating:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in
  • Width: 8.25 in
  • Depth: 3.81 in

Material Compliance and Certifications

• HACR Rated: Approved for HVAC and refrigeration applications where HACR-rated protection is specified.
• Commercial and Industrial Applications: Manufactured for use in commercial and industrial electrical distribution systems.
• Industry Standards: Designed to meet applicable molded case circuit breaker construction and operational standards for its class.
  

Where It Works Best

• The TJK426175WL is commonly used in commercial electrical distribution panels, industrial control and power systems, HVAC equipment installations, manufacturing facilities, existing Q-Line compatible switchgear and panelboard systems, and maintenance and replacement projects requiring matching form, fit, and function. Its combination of thermal magnetic protection, strong interrupting capacity, and lug-lug connection style makes it a practical solution for maintaining reliable electrical protection in established power distribution systems.