TJK426175WL **Older Style** - 175Amp Circuit Breaker

TJK426175WL **Older Style** - 175 Amp Circuit Breaker

The TJK426175WL molded case circuit breaker is designed for your dependable circuit protection in commercial and industrial electrical distribution systems where maintaining compatibility with existing equipment matters. Built as part of the Q-Line Type TJK4 series, this 2-pole, 175-amp breaker features a thermal magnetic trip unit with internal common trip functionality to help you protect connected equipment from overloads and short circuits. Its cable-in/cable-out lug-lug configuration, along with included line and load-side lugs, supports straightforward installation in compatible panelboards and switchgear applications.

This older style black face breaker is commonly used in facilities requiring reliable replacement components for existing infrastructure. The non-interchangeable trip unit design helps maintain consistent protection settings, while the HACR rating makes it suitable for heating, air conditioning, and refrigeration applications. With interrupting capacities rated up to 42k A.I.C. at 240VAC, this breaker is built to handle demanding electrical environments while supporting long-term operational continuity.

Key Features and Benefits

• Type TJK4 molded case circuit breaker: Designed for dependable circuit protection in compatible commercial and industrial electrical systems.
• 175 Amp continuous current rating: Supports applications requiring consistent high-capacity electrical protection.
• 2-pole configuration: Built for use in compatible AC distribution systems.
• Older style black face design: Helps meet form, fit, and functional replacement requirements in existing infrastructure.
• Thermal magnetic trip unit: Provides overload and short-circuit protection for connected equipment.
• Internal common trip mechanism: Enhances coordinated breaker operation during fault conditions.
• Cable-in/Cable-out (Lug-Lug) configuration: Simplifies field connections and installation.
• Includes line-side and load-side lugs: Supports convenient installation in compatible equipment.
• HACR rated: Suitable for heating, air conditioning, and refrigeration system applications.
• Built to last: Designed for use in commercial and industrial electrical systems requiring long-term operational continuity.
  

Technical Specifications

• Part Number: TJK426175WL
  
• Series / Type: TJK4
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage Rating: 175A
  
• Voltage & A.I.C. Ratings: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Function: Internal Common Trip
  
• Configuration: 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: Manufactured for use in compatible commercial and industrial electrical distribution systems.
• Construction Standards: Designed to meet applicable molded case circuit breaker construction and operational standards for its class and rating.
  

Where It Works Best

• The TJK426175WL is well-suited for commercial buildings, industrial control panels, distribution switchboards, HVAC equipment disconnect and protection applications, manufacturing facilities, and legacy electrical systems requiring compatible replacement breakers. It is also ideal for electrical maintenance projects where matching existing equipment specifications is important.