THLC134020WL - 20Amp Circuit Breaker

THLC134020WL - 20 Amp Circuit Breaker

The THLC134020WL is a 3-pole, 20-amp current-limiting circuit breaker designed to provide dependable circuit protection in your commercial and industrial electrical distribution systems. Built with a non-interchangeable trip unit, this unfused breaker helps you to protect electrical equipment and conductors from overcurrent conditions while maintaining compatibility with systems designed for the THLC1 frame type. Its current-limiting design helps reduce the fault energy that passes through the electrical system during short-circuit events, thereby protecting connected equipment.

Engineered for long service life, the THLC134020WL features a compact footprint and includes both line-side and load-side lugs for convenient installation. With interrupting ratings of 150kA at 480VAC and 200kA at 240VAC, this circuit breaker is well-suited for applications requiring high fault-current capacity. Whether used in switchgear, panelboard assemblies, or industrial power distribution equipment, the THLC134020WL delivers the form, fit, and function needed for maintaining existing electrical systems.

Key Features and Benefits

• 20-amp current-limiting circuit breaker: 20-amp current-limiting circuit breaker.
• 3-pole configuration for three-phase electrical systems: 3-pole configuration for three-phase electrical systems.
• Non-interchangeable trip unit: Non-interchangeable trip unit helps maintain specified protection settings.
• Unfused design: Unfused design for streamlined circuit protection applications.
• High interrupting capacity: High interrupting capacity rated at 150kA @ 480VAC and 200kA @ 240VAC.
• Installation convenience: Includes line-side and load-side lugs for installation convenience.
• THLC1 compatibility: Designed for compatibility with THLC1 circuit breaker applications.
• Compact dimensions: Compact dimensions help simplify integration into existing equipment.
• Long-lasting service: Built to provide long-lasting service in demanding electrical environments.
  

Technical Specifications

• Part Number: THLC134020WL
  
• Type: THLC1
  
• Poles: 3
  
• Amperes: 20A
  
• Voltage / A.I.C. Rating: 150kA @ 480VAC; 200kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Configuration: Unfused Current Limiting Circuit Breaker
  
• Included Accessories: Line-Side and Load-Side Lugs
  
• Dimensions:
  • Height: 8.75 in.
  • Width: 4.13 in.
  • Depth: 4.19 in.

Material Compliance and Certifications

• Industry Standards: The THLC134020WL is manufactured for use in electrical power distribution systems and is designed to meet applicable industry standards associated with its original production and intended application.
• Compliance Verification: Users should verify project-specific compliance requirements, certifications, and installation standards before use.
  

Where It Works Best

• Commercial electrical distribution systems
• Industrial facilities and manufacturing plants
• Switchgear and switchboard assemblies
• Panelboard applications
• Three-phase power distribution equipment
• Facilities requiring a high-interrupting capacity circuit protection
• Maintenance and replacement projects where THLC1 compatibility is required
• Its combination of current-limiting protection, compact design, and high fault interruption ratings makes it a practical choice for maintaining and servicing existing electrical infrastructure while supporting safe and reliable operation.