THJK426150 - 150Amp Circuit Breaker

THJK426150 - 150Amp Circuit Breaker

The THJK426150 Circuit Breaker is a 150-amp, two-pole molded-case breaker for your compatible commercial and industrial electrical distribution systems. Manufactured by ABB, this breaker is part of the J600 product line and features an interchangeable thermal-magnetic trip design with an LI (Long-Time and Instantaneous) trip function. Its 150A current rating, two-pole configuration, and J600 frame designation make it a specific replacement option to consider when maintaining existing electrical equipment. For facilities that depend on established electrical distribution systems, the THJK426150 offers clearly defined characteristics to preserve the original installation's form, fit, and protective function.

Key Features and Benefits

• 150-Amp Current Rating
• Two-Pole Circuit Breaker Configuration
• J600 Molded Case Frame
• Interchangeable Thermal-Magnetic Trip Design
• LI Trip Function
• 400-Amp Frame Family Compatibility
• Defined Product Identification
• Thermal-Magnetic Protection
• Application in Existing Electrical Systems
• Trip-Unit Compatibility Requirements
• Terminal Configuration Verification
• Form, Fit, and Functional Replacement Considerations

Technical Specifications

• Catalog Number: THJK426150
  
• UPC: 783164000000
  
• Manufacturer: ABB
  
• Product Type: Molded Case Circuit Breaker
  
• Product Category: Thermal-Magnetic Circuit Breaker
  
• Product Line: J600
  
• Breaker Type: THJK
  
• Rated Current: 150 Amperes (150A)
  
• Number of Poles: 2
  
• Frame Type: J600
  
• Applicable Frame Family: 400A Frame, 125A–400A Rating Range
  
• Trip Design: Interchangeable
  
• Trip Technology: Thermal-Magnetic
  
• Trip Function: LI (Long-Time and Instantaneous)
  
• Long-Time Protection: Included in LI trip function
  
• Instantaneous Protection: Included in LI trip function
  
• J600 Product Line Maximum Current Rating: 600A
  
• J600 Product Line Maximum AC Voltage: 600VAC
  
• Standard THJK Shipping Configuration: Generally supplied unassembled unless otherwise specified
  
• Specific Supplied Assembly Configuration: Must be confirmed for the individual product
  
• Housing Construction: Molded Case
  
• GSA Compliance: No
  

Material Compliance and Certifications

The THJK426150 Industrial Molded Case Circuit Breaker is identified as a thermal-magnetic circuit breaker in the J600 product line, with a two-pole configuration, 150A current rating, and interchangeable LI trip design.

Similarly, the J600 family's maximum voltage rating does not independently confirm every permitted application or interrupting capacity for the THJK426150.

Qualified electrical personnel should confirm all required listings, electrical ratings, terminal connections, and equipment compatibility before installation.

Where It Works Best

• Existing Commercial Electrical Systems
• Industrial Power Distribution Equipment
• Two-Pole Electrical Applications
• 150-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
• Electrical Equipment Restoration
• Commercial and Industrial Electrical Replacement Projects
• Form, Fit, and Functional Replacement Applications