THFK236100 **Older Style** - 100 Amp Circuit Breaker

THFK236100 **Older Style** - 100 Amp Circuit Breaker

The THFK236100 molded case circuit breaker is a 3-pole, 100-amp thermal magnetic circuit breaker designed for use in your commercial and industrial power distribution systems. Built on the F225 line molded case frame, this breaker features an interchangeable thermal magnetic trip unit and is configured with load-side lugs included for straightforward installation. The older style black face design makes it particularly well-suited for maintaining or servicing existing electrical systems that require matching equipment for proper fit and function.

Engineered for dependable circuit protection, the THFK236100 helps you safeguard electrical equipment and conductors from overloads and short circuits. Its interrupting capacity ratings of 18kA at 600VAC, 25kA at 480VAC, and 65kA at 240VAC make it suitable for a wide range of industrial and commercial applications where reliable overcurrent protection is essential. Designed with durability in mind, these breakers were built to provide long service life in demanding environments.

Key Features and Benefits

• 100 Amp current rating for commercial and industrial power distribution applications
• 3-pole configuration for three-phase electrical systems
• Type THFK molded case circuit breaker
• Older style black face design for compatibility with existing installations
• Thermal magnetic trip unit provides protection against overloads and short circuits
• Interchangeable trip unit design for serviceability and application flexibility
• F225 line molded case frame construction
• Includes load-side lugs
• Suitable for systems requiring interrupting capacities up to 18kA at 600VAC, 25kA at 480VAC, and 65kA at 240VAC
• Built for long-term use in demanding electrical environments

Technical Specifications

• SpecificationValue
• Part Number THFK236100
• Type THFK
• Frame F225 Line Molded Case
• Trip Unit Interchangeable Thermal Magnetic
• Poles 3
• Amperes 100A
• Voltage & A.I.C. Rating 18kA @ 600VAC; 25kA @ 480VAC; 65kA @ 240VAC
• Height 10.13 in.
• Width 4.13 in.
• Depth 3.81 in.
• Face Style Older Style Black Face
• Terminals Includes Load-Side Lugs

Material Compliance and Certifications

• This molded case circuit breaker was manufactured to applicable industry standards in effect at the time of production. Users should verify specific compliance, certification, and application requirements against project specifications and local electrical codes prior to installation. Proper installation and maintenance should be performed by qualified electrical personnel.

Where It Works Best

• The THFK236100 is commonly used in: Industrial manufacturing facilities Commercial buildings Motor control and distribution equipment Power distribution panels and switchgear Electrical system maintenance projects Facility expansions requiring compatible legacy equipment Replacement applications where an older style black face THFK breaker is needed for proper form, fit, and function Its combination of a 100-amp rating, 3-pole design, and thermal magnetic protection makes it a practical choice for protecting three-phase circuits in a variety of commercial and industrial electrical systems.