THLC134125 - 125Amp Circuit Breaker

THLC134125 - 125 Amp Circuit Breaker

The THLC134125 is a 125-amp, 3-pole current limiting circuit breaker designed for use in your commercial and industrial power distribution systems requiring high interrupting capacity and dependable circuit protection. Built with a non-interchangeable trip unit, this unfused breaker helps you to protect electrical equipment and conductors from damage caused by overloads and short circuits while maintaining compatibility with systems designed for Type THLC1 circuit breakers. Its current-limiting design helps reduce the amount of fault energy that passes through the electrical system during short-circuit events. The breaker includes load-side lugs for straightforward installation and is engineered for long service life in demanding electrical environments. Designed to meet the original form, fit, and function requirements of compatible installations, the THLC134125 remains a practical solution for maintaining and servicing existing electrical distribution equipment.

Key Features and Benefits

• 125 amp current rating for commercial and industrial applications
• 3-pole configuration for three-phase electrical systems
• Type THLC1 circuit breaker design
• Current-limiting construction helps reduce fault energy during short-circuit conditions
• Non-interchangeable trip unit maintains consistent protection characteristics
• Unfused design for applications requiring circuit breaker-based protection
• Includes load-side lugs for installation convenience
• High interrupting capacity rated at 150kAIC at 480VAC and 200kAIC at 240VAC
• Designed to match the form, fit, and function requirements of compatible equipment
• Built for long-term operation in demanding power distribution environments
  

Technical Specifications

• Manufacturer Part Number: THLC134125
  
• Type: THLC1
  
• Poles: 3
  
• Amperes: 125A
  
• Voltage Rating: 240VAC / 480VAC
  
• Interrupting Capacity: 150kA @ 480VAC; 200kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Circuit Breaker Style: Current Limiting
  
• Fuse Type: Unfused
  
• Included Accessories: Load-Side Lugs
  
• Dimensions:
  • Height: 8.75 in.
  • Width: 4.13 in.
  • Depth: 4.19 in.

Material Compliance and Certifications

• Industry Standards: The THLC134125 is manufactured and rated for use in electrical distribution systems in accordance with applicable industry standards associated with its design and ratings.
• Installation Requirements: Users should verify all installation requirements, certifications, and code compliance details for their specific application and jurisdiction prior to installation.
  

Where It Works Best

• The THLC134125 is commonly used in commercial buildings, manufacturing facilities, institutional properties, and industrial power distribution systems where a 125-amp, 3-pole current limiting circuit breaker with high interrupting capacity is required. It is particularly well-suited for maintaining existing switchgear, panelboard, and distribution equipment designed to accept Type THLC1 breakers, making it a practical choice when preserving compatibility within established electrical systems.