THFK236125 - 125 Amp Circuit Breaker

THFK236125 - 125 Amp Circuit Breaker

The THFK236125 molded-case circuit breaker is a 3-pole, 125-amp circuit-protection device designed for use in your commercial and industrial electrical distribution systems. Built with a thermal-magnetic trip unit, it provides dependable protection against overloads and short circuits while helping you to maintain the safe operation of connected equipment. This F225 line-molded-case circuit breaker features an interchangeable thermal magnetic trip unit. It includes load-side lugs, making it a practical form-fit and functional replacement for compatible electrical systems. Designed to withstand demanding operating environments, this breaker is built to last and delivers the ratings required for a wide range of power distribution applications.

Key Features and Benefits

• 125 amp current rating for commercial and industrial power distribution.
• 3-pole configuration for three-phase electrical systems.
• Thermal magnetic trip unit protects against overloads and short circuits.
• Interchangeable trip unit simplifies maintenance and serviceability.
• Includes load-side lugs for convenient installation.
• Interrupting ratings of 18kA at 600VAC, 25kA at 480VAC, and 65kA at 240VAC.
• Designed for form, fit, and functional replacement in compatible F225 line installations.
• Built to last for long-term use in demanding electrical environments.
  

Technical Specifications

• Part Number: THFK236125
  
• Type: THFK
  
• Product Line: F225 Line Molded Case Circuit Breaker
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Trip Unit: Interchangeable Thermal Magnetic
  
• Poles: 3
  
• Current Rating: 125 Amps
  
• Voltage & Interrupting Rating: 18kA @ 600VAC; 25kA @ 480VAC; 65kA @ 240VAC
  
• Included Accessories: Load-Side Lugs
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 4.13 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• The THFK236125 is manufactured for use in commercial and industrial electrical distribution applications and is designed to meet the applicable ratings associated with its product series. Proper installation and application should always be performed in accordance with the National Electrical Code (NEC), local electrical regulations, and the equipment manufacturer's requirements. Verify compatibility with your existing panel or switchgear before installation.

Where It Works Best

• The THFK236125 is well-suited for a variety of electrical distribution applications that require a 3-pole, 125-amp molded-case circuit breaker. Typical installations include commercial buildings, industrial facilities, manufacturing plants, distribution panels, switchboards, motor and equipment protection, and power distribution systems requiring compatible F225 line circuit breakers. Its combination of thermal-magnetic protection, interchangeable trip-unit design, and included load-side lugs makes it an excellent choice when maintaining or replacing compatible circuit protection equipment while preserving the original system configuration.