THLC234125 - 125Amp Circuit Breaker

THLC234125 - 125 Amp Circuit Breaker

The THLC234125 is a 125-amp, 3-pole, current-limiting circuit breaker designed to provide dependable overcurrent protection in your commercial and industrial electrical distribution systems. Featuring a non-interchangeable trip unit and an unfused current-limiting design, this breaker helps you to protect electrical equipment by reducing the effects of short-circuit currents before they can cause significant damage. Built for long-term service in demanding environments, the THLC234125 combines a compact footprint with high interrupting capacity, making it a practical solution for maintaining and servicing existing power distribution systems.

With interrupting ratings of 150kA at 480VAC and 200kA at 240VAC, this breaker is well-suited for applications where high available fault current levels require dependable protection. The included load-side lugs simplify installation, while the durable construction is designed to withstand the rigors of everyday operation. Whether you use it in switchgear, panelboards, or other electrical distribution equipment, the THLC234125 delivers the form, fit, and function needed for compatible replacement applications.

Key Features and Benefits

• 125 Amp Current Rating: 125 Amp current rating for medium-capacity power distribution applications.
• 3-Pole Configuration: 3-pole configuration for three-phase electrical systems.
• Current Limiting Design: Current limiting design helps reduce the impact of fault currents.
• Non-Interchangeable Trip Unit: Non-interchangeable trip unit maintains consistent protection characteristics.
• Unfused Construction: Unfused construction eliminates the need for separate fuse replacement.
• Load-Side Lugs Included: Includes load-side lugs for installation convenience.
• High Interrupting Capacity: High interrupting capacity for applications with elevated fault current availability.
• Built for Dependability: Designed for long service life and dependable operation.
• Legacy System Support: Suitable for maintaining and servicing compatible legacy electrical systems.
  

Technical Specifications

• Part Number: THLC234125
  
• Type: THLC2
  
• Amperes: 125A
  
• Poles: 3
  
• Voltage / A.I.C. Rating: 150kA @ 480VAC; 200kA @ 240VAC
  
• Circuit Breaker Style: Current Limiting
  
• Configuration: Unfused
  
• Trip Unit: Non-Interchangeable
  
• Included Accessories: Load-Side Lugs
  
• Dimensions:
  • Height: 11.44 in.
  • Width: 5.72 in.
  • Depth: 4.88 in.

Material Compliance and Certifications

• Electrical Distribution Applications: Manufactured for use in electrical power distribution systems requiring overcurrent protection.
• Industry Standards: Designed to meet applicable industry standards and ratings associated with its original production specifications.
• Installation Requirements: Verify installation requirements, equipment compatibility, and local code compliance before installation.
• Application Suitability: Suitable for use in applications where the listed voltage and interrupting ratings are required.
  

Where It Works Best

• The THLC234125 is commonly used in commercial facilities, industrial plants, manufacturing operations, institutional buildings, and other environments requiring dependable three-phase circuit protection. Its high interrupting capacity makes it particularly suitable for electrical systems with elevated available fault currents. This breaker is often installed in switchgear, distribution equipment, and panelboard applications where maintaining compatibility with existing equipment is essential.