THLC134150 - 150Amp Circuit Breaker

THLC134150 - 150 Amp Circuit Breaker

The THLC134150 is a 150-amp, 3-pole current-limiting circuit breaker designed for use in your commercial and industrial electrical distribution systems that require dependable overcurrent protection. Featuring a non-interchangeable trip unit, this unfused circuit breaker helps you to protect electrical equipment and conductors from damage caused by overloads and short circuits while maintaining compatibility with systems designed for the THLC1 platform. Built for long service life, the THLC134150 combines a compact footprint with high interrupting capacity, making it well-suited for applications where available fault current levels demand reliable protection. This unit includes load-side lugs for convenient installation and connection within compatible electrical assemblies.

Key Features and Benefits

• 150-amp current rating: For commercial and industrial power distribution applications.
• 3-pole configuration: For protecting three-phase electrical systems.
• Current limiting design: Helps reduce the effects of high fault currents on downstream equipment.
• Non-interchangeable trip unit: Provides fixed protection characteristics.
• Unfused construction: Simplifies system integration where a circuit breaker solution is required.
• Includes load-side lugs: For straightforward field installation.
• High interrupting capacity: Rated at 150kAIC at 480VAC and 200kAIC at 240VAC.
• Compatible with systems designed for THLC1 circuit breakers.
• Designed for long-term service: In demanding electrical environments.
  

Technical Specifications

• Part Number: THLC134150
  
• Type: THLC1
  
• Poles: 3
  
• Amperes: 150A
  
• Voltage / A.I.C. Rating: 150kA @ 480VAC; 200kA @ 240VAC
  
• Circuit Breaker Style: Current Limiting
  
• Trip Unit: Non-Interchangeable
  
• Configuration: 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 THLC134150 is manufactured and rated for use in electrical distribution systems in accordance with applicable industry standards for molded case circuit breakers.
• Verification Requirements: Verification of specific certifications, listings, environmental compliance requirements, or agency approvals should be confirmed against equipment documentation, nameplate markings, and project specifications before installation.
  

Where It Works Best

• The THLC134150 is well-suited for commercial buildings, industrial facilities, manufacturing operations, switchboards, panelboards, motor distribution systems, and other electrical infrastructure that require a 150A three-pole current-limiting circuit breaker. Its high interrupting ratings make it a practical choice for installations with elevated available fault current and where compatibility with existing THLC1-based equipment is important. It is commonly used as a form-fit-and-function replacement in existing systems designed around this breaker family.