TJ236125 - 125A Circuit Breaker

TJ236125 - 125A Circuit Breaker

The TJ236125 circuit breaker is a 3-pole, 125-amp thermal-magnetic circuit breaker designed for your dependable overcurrent and short-circuit protection in commercial and industrial electrical distribution systems. Built on the trusted TJ-frame platform, this breaker is engineered for applications requiring reliable protection up to 480 VAC with a 14 k A.I.C. rating. Its non-interchangeable trip unit helps you to maintain consistent trip settings, making it a practical choice for facilities that rely on stable, repeatable circuit protection in existing power systems.

Rated for 40°C operation, the TJ236125 is commonly used in switchboards, panelboards, motor control centers, and distribution equipment where maintaining proper electrical protection is essential. The included load-side terminals simplify installation and replacement, especially in legacy systems where matching form, fit, and function is critical. Built with durability in mind, this breaker is intended for long-term service in demanding electrical environments while supporting safe and efficient power distribution.

Key Features and Benefits

• 125 Amp Thermal-Magnetic Protection: Designed for dependable overcurrent and short-circuit protection in commercial and industrial electrical systems.
• 3-Pole Configuration: Designed for three-phase electrical systems requiring reliable circuit protection.
• TJ-Frame Construction: Supports form, fit, and functional replacement requirements in existing electrical systems.
• Non-Interchangeable Trip Unit: Helps maintain fixed protection settings for stable and repeatable circuit protection.
• 14k A.I.C. Rating at 480VAC: Provides dependable fault interruption capability for demanding electrical applications.
• 40°C Rated: Suitable for use in higher ambient temperature environments commonly found in commercial and industrial facilities.
• Includes Load-Side Terminals: Simplifies installation and replacement in legacy systems where compatibility is important.
• Built for Long Service Life: Intended for dependable long-term operation in electrical distribution systems.
  

Technical Specifications

• Part Number: TJ236125
  
• Frame Type: TJ Frame
  
• Circuit Breaker Type: Thermal-Magnetic
  
• Poles: 3
  
• Amperage Rating: 125 Amps
  
• Voltage Rating: 480VAC
  
• A.I.C. Rating: 14kA @ 480VAC
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 4.0 in.
• Included Accessories: Load-Side Terminals
  

Material Compliance and Certifications

• Industry Standards: The TJ236125 circuit breaker is manufactured for use in commercial and industrial electrical systems requiring properly rated overcurrent protection devices. It is designed to meet applicable electrical distribution standards for molded case circuit breakers.
• Professional Installation: It is intended for installation by qualified electrical professionals in accordance with local codes and manufacturer guidelines.
  

Where It Works Best

• The TJ236125 is well-suited for use in commercial buildings, industrial facilities, manufacturing equipment, distribution panels and switchboards, motor control centers, facility maintenance and retrofit projects, and existing TJ-frame electrical systems requiring compatible replacement breakers. Its combination of thermal-magnetic protection, a fixed trip configuration, and 480 VAC capability makes it a dependable solution for maintaining safe operation in established electrical infrastructure.