THFK236150WL **Older Style** - 150 Amp Circuit Breaker

THFK236150WL **Older Style** - 150 Amp Circuit Breaker

The THFK236150WL is a 3-pole, 150-amp molded case circuit breaker designed for use in your commercial and industrial power distribution systems. Featuring the older-style black face, this breaker is part of the THFK series and is built on the F225 line molded-case frame. It includes an interchangeable thermal magnetic trip unit, allowing it to provide dependable protection against overloads and short circuits while maintaining compatibility with existing equipment configurations. Line-side and load-side lugs are included, helping you to simplify installation and replacement in applications where maintaining original system specifications is important.

Built to last and engineered for demanding electrical environments, the THFK236150WL is well-suited for your protecting feeders, distribution panels, motor circuits, and other high-capacity electrical systems. Its compact molded-case design allows efficient integration into switchgear, panelboards, and industrial distribution equipment while delivering the interrupting capability required for reliable circuit protection.

Key Features and Benefits

• 150 Amp Current Rating: 150 Amp current rating for commercial and industrial power distribution applications.
• 3-Pole Configuration: 3-pole configuration for three-phase electrical systems.
• Older Style Black Face Design: Older style black face design for form, fit, and functional compatibility with existing installations.
• Thermal Magnetic Protection: The thermal magnetic trip unit protects against overload and short-circuit conditions.
• Interchangeable Trip Unit Design: Interchangeable trip unit design supports maintenance and system configuration requirements.
• F225 Line Molded Case Construction: F225 line molded case construction designed for long service life.
• Included Lugs: Includes both line-side and load-side lugs.
• Application Suitability: Suitable for feeder, distribution, and equipment protection applications.
• Compact Footprint: Compact footprint helps maximize panel and switchgear space utilization.
  

Technical Specifications

• Part Number: THFK236150WL
  
• Series: THFK
  
• Frame Type: F225 Line Molded Case
  
• Trip Unit Type: Interchangeable Thermal Magnetic
  
• Amperage Rating: 150 Amps
  
• Number of Poles: 3
  
• Voltage & Interrupting Rating:
  • 18kA @ 600VAC
  • 25kA @ 480VAC
  • 65kA @ 240VAC
• Dimensions:
  • Height: 10.13 in.
  • Width: 4.13 in.
  • Depth: 3.81 in.
• Included Accessories: Line-Side and Load-Side Lugs
  
• Face Style: Older Style Black Face
  

Material Compliance and Certifications

• Industry Requirements: The THFK236150WL is manufactured for use in commercial and industrial electrical distribution systems and is designed to meet applicable industry requirements for molded-case circuit breakers.
• Application Verification: Users should verify specific compliance, certification, and application requirements based on the installation environment, equipment specifications, and local electrical codes.
  

Where It Works Best

• The THFK236150WL is commonly used in:
• Industrial facilities and manufacturing plants
• Commercial buildings and office complexes
• Electrical distribution equipment
• Switchgear and switchboard assemblies
• Motor control and feeder circuit protection
• Power distribution panels
• Facility maintenance and retrofit projects requiring compatibility with existing THFK-series equipment
• When maintaining or servicing existing electrical systems, this breaker provides a practical form, fit, and functional replacement option for compatible THFK installations while preserving original system design requirements.