THJK426175 - 175Amp Circuit Breaker

THJK426175 - 175Amp Circuit Breaker

The THJK426175 Circuit Breaker is a 175-amp, two-pole molded-case breaker manufactured by ABB for compatible commercial and industrial electrical distribution systems. Whether you're maintaining an industrial facility or restoring an established electrical distribution system, the THJK426175 offers clear characteristics to help you evaluate a replacement that preserves the original equipment's form, fit, and protective function.

Key Features and Benefits

• 175-Amp Current Rating
• Two-Pole Circuit Breaker Configuration
• J600 Molded Case Frame
• THJK Interchangeable Trip Design
• Thermal-Magnetic Circuit Protection
• LI Trip Function
• 400-Amp Frame Family
• Frame-Specific Trip Compatibility
• Molded Case Construction
• Existing Equipment Compatibility Evaluation
• Form, Fit, and Functional Replacement Considerations

Technical Specifications

• Catalog Number: THJK426175
  
• Manufacturer: ABB
  
• Manufacturer Description: ASM THJK C/B
  
• UPC: 783164046663
  
• Product Type: Molded Case Circuit Breaker
  
• Product Category: Thermal-Magnetic Circuit Breaker
  
• Product Line: J600
  
• Breaker Type: THJK
  
• Rated Current: 175 Amperes (175A)
  
• Number of Poles: 2
  
• Frame Type: J600
  
• Applicable Frame Family: 400A Frame, 125A–400A Rating Range
  
• Trip Unit Configuration: Interchangeable
  
• Trip Technology: Thermal-Magnetic
  
• Trip Function: LI (Long-Time and Instantaneous)
  
• Long-Time Protection: Thermal Overload Protection
  
• Instantaneous Protection: Magnetic Short-Circuit Protection
  
• J600 Product Line Maximum Current Rating: Up to 600A, Depending on Configuration
  
• J600 Product Line Maximum AC Voltage: Up to 600VAC, Depending on Configuration
  
• Trip Unit Interchangeability: Restricted to Compatible Frame Types
  
• Manufacturer Assembly Description: ASM THJK C/B
  
• General THJK Supply Configuration: Unassembled Unless Otherwise Specified
  
• Specific Supplied Components: Must Be Confirmed for This Catalog Number
  
• WL Lug Designation: WL-Suffix Configurations Include Cu/Al Line and Load Lugs
  
• GSA Compliance: No
  

Material Compliance and Certifications

The THJK426175 Industrial Molded Case Circuit Breaker is classified as a thermal-magnetic circuit breaker with a 175A current rating, two-pole configuration, J600 frame designation, and interchangeable LI trip function.

Before installation, qualified electrical personnel should confirm the required safety listings, frame and trip-unit compatibility, terminal configuration, and equipment-specific electrical requirements.

Where It Works Best

• Existing Commercial Electrical Systems
• Industrial Power Distribution Equipment
• Two-Pole Electrical Applications
• 175-Amp Circuit Protection
• Legacy Electrical Distribution Systems
• Matching THJK Circuit Breaker Replacements
• Industrial Machinery and Equipment Protection
• Facility Maintenance and Electrical Repairs
• 400-Amp J600 Frame Applications
• Interchangeable Trip Unit Applications
• LI Thermal-Magnetic Protection Applications
• Commercial and Industrial Electrical Restoration
• Electrical Equipment Replacement Projects
• Form, Fit, and Functional Replacement Applications