THLC134090 - 90Amp Circuit Breaker

THLC134090 - 90 Amp Circuit Breaker

The THLC134090 is a 90-amp, 3-pole current limiting circuit breaker designed for use in commercial and industrial electrical distribution systems where dependable overcurrent protection is required. Featuring a non-interchangeable trip unit and an unfused current limiting design, this breaker helps protect your electrical equipment and conductors from the damaging effects of short circuits and overload conditions. Built for applications requiring high interrupting capacity, the THLC134090 is rated for 150kA at 480VAC and 200kA at 240VAC, making it suitable for installations where available fault current levels are significant. Load-side lugs are included for straightforward conductor termination, helping you to simplify installation and replacement projects. Designed to provide proper form, fit, and function within compatible systems, this breaker is built to last and supports the continued operation of existing electrical infrastructure.

Key Features and Benefits

• 90-amp current rating: For commercial and industrial power distribution applications.
• 3-pole configuration: For three-phase electrical systems.
• Current limiting design: Helps reduce the effects of high fault currents.
• Non-interchangeable trip unit: Maintains specified protection characteristics.
• Unfused construction: Eliminates the need for separate fuse components.
• Includes load-side lugs: For convenient field installation.
• High interrupting capacity:
  • 150kA at 480VAC
  • 200kA at 240VAC
• Designed for compatible THLC1 applications: Requiring dependable overcurrent protection.
• Suitable as a form, fit, and functional replacement: In existing electrical systems.
• Built to withstand the demands of long-term service: In properly maintained installations.
  

Technical Specifications

• Part Number: THLC134090
  
• Type: THLC1
  
• Amperage Rating: 90A
  
• Poles: 3
  
• Voltage Rating: Up to 480VAC
  
• Interrupting Capacity: 150kA @ 480VAC; 200kA @ 240VAC
  
• Circuit Breaker Style: Current Limiting
  
• Trip Unit: Non-Interchangeable
  
• Fuse 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 THLC134090 is manufactured for use in electrical power distribution systems and is intended to meet applicable industry standards associated with its original design and ratings.
• Installation Requirements: Users should verify installation requirements, local electrical codes, and equipment compatibility before installation.
• Compliance Variations: Certification and compliance requirements may vary depending on application, system configuration, and jurisdiction.
  

Where It Works Best

• The THLC134090 is well suited for commercial buildings, manufacturing facilities, institutional properties, and industrial environments where high available fault current levels require a current limiting circuit breaker.
• It is commonly used in switchgear, distribution equipment, motor control systems, and other power distribution applications requiring a 90-amp, 3-pole breaker with substantial interrupting capacity.
• This breaker is particularly useful when maintaining or servicing existing electrical systems that require a compatible THLC1 form, fit, and functional replacement.