TEF124100 - 100Amp Circuit Breaker

TEF124100 - 100Amp Circuit Breaker

When you need a 100 Amp, 2-pole molded case circuit breaker that matches the specifications of your existing electrical system, the TEF124100 is designed to deliver the protection your equipment depends on. Built with a non-interchangeable thermal magnetic trip unit, this breaker automatically responds to both prolonged overloads and sudden short-circuit faults, helping protect electrical distribution equipment from damage while supporting safe system operation.

Rated for 18kA at 480VAC, the TEF124100 is commonly used in commercial and industrial electrical systems where maintaining the original breaker ratings and physical fit is essential. It also comes equipped with load-side lugs, helping simplify installation in compatible equipment. Whether you're replacing a failed breaker during maintenance or keeping an existing electrical system operating as designed, this breaker provides the correct form, fit, and function for compatible TEF applications. Built to last, it's a dependable choice for facilities that rely on consistent electrical protection every day.

Key Features and Benefits

• 100 Amp Current Rating: 100 Amp current rating for commercial and industrial power distribution.
• 2-Pole Design: 2-pole design protects two energized conductors.
• Non-Interchangeable Thermal Magnetic Trip Unit: Non-interchangeable thermal magnetic trip unit responds to overloads and short circuits.
• 18kA Interrupting Capacity: 18kA interrupting capacity at 480VAC.
• Load-Side Lugs Included: Includes load-side lugs for convenient installation.
• Molded Case Construction: Molded case construction built for long service life.
• Form, Fit, and Functional Replacement: Designed as a form, fit, and functional replacement for compatible TEF circuit breaker applications.

Technical Specifications

• Part Number: TEF124100
• Type: TEF
• Product Type: Molded Case Industrial Circuit Breaker
• Trip Unit: Non-Interchangeable Thermal Magnetic
• Poles: 2
• Current Rating: 100 Amps
• Interrupting Capacity: 18kA @ 480VAC
• Dimensions:
  • Height: 6.31 in.
  • Width: 2.75 in.
  • Depth: 3.38 in.
• Included: Load-Side Lugs

Material Compliance and Certifications

• Equipment Compatibility: Manufactured for use in compatible electrical distribution equipment.
• Published Ratings: Designed to meet the published electrical ratings for the TEF product family.
• Installation Notice: Always verify compatibility with your equipment and follow applicable local electrical codes before installation.

Where It Works Best

• The TEF124100 is well suited for commercial, industrial, and institutional electrical systems that require a 2-pole, 100 Amp circuit breaker with an 18kA interrupting rating at 480VAC. It is commonly installed in panelboards, switchboards, control panels, and other compatible power distribution equipment where maintaining the original electrical ratings and breaker configuration is important. It's an ideal form, fit, and functional replacement for compatible TEF breaker installations used in manufacturing facilities, office buildings, warehouses, schools, healthcare facilities, and similar environments.