TJD432300WL - 300Amp Circuit Breaker

TJD432300WL - 300 Amp Circuit Breaker

The TJD432300WL molded case circuit breaker is designed for dependable circuit protection in your commercial and industrial electrical distribution systems that require a 300-amp, 3-pole Configuration. Built as part of the trusted Q-Line TJD series, this breaker features an internal common trip mechanism that helps you to disconnect all poles simultaneously during overloads or short circuits, supporting safe operation across connected equipment and branch circuits. Its cable-in/cable-out lug-lug design simplifies installation in compatible switchboards, panelboards, and distribution equipment that require direct cable terminations. With a 22 kA interrupting rating at 240 VAC, the TJD432300WL is well-suited for handling fault currents in demanding electrical environments. The included line- and load-side lugs help streamline setup while maintaining proper conductor connections. Designed for long-term serviceability, this molded case circuit breaker is commonly used in HVAC systems, manufacturing facilities, commercial buildings, and other applications where consistent power distribution and circuit protection are essential.

Key Features and Benefits

• 300 Amp Current Rating: for higher-capacity electrical distribution applications
• 3-Pole Configuration: designed for three-phase power systems
• 22kA A.I.C. Rating at 240VAC: supports reliable fault interruption capability
• Internal Common Trip Mechanism: helps disconnect all poles simultaneously during fault conditions
• Cable-In/Cable-Out (Lug-Lug) Design: allows direct conductor termination for simplified installation
• Includes Line and Load-Side Lugs: for convenient field installation
• Q-Line TJD Series Construction: is compatible with a range of commercial and industrial systems
• HACR Rated: for use with heating, air conditioning, and refrigeration equipment applications
• Molded Case Construction: built for long service life in demanding electrical environments
  

Technical Specifications

• Part Number: TJD432300WL
  
• Type: TJD
  
• Product Category: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperes: 300A
  
• Voltage Rating: 240VAC
  
• A.I.C. Rating: 22kA @ 240VAC
  
• Trip Type: Internal Common Trip
  
• Connection Type: Cable-In/Cable-Out (Lug-Lug)
  
• Included Accessories: Line and Load-Side Lugs
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: for HVAC-related applications
• Commercial and Industrial Use: Manufactured for use in commercial and industrial electrical distribution systems
• Industry Standards: Molded case circuit breaker construction is designed to meet applicable industry standards for circuit protection and safe operation
• Equipment Compatibility: Built for compatibility with properly rated electrical equipment and legacy power distribution systems, where applicable
  

Where It Works Best

• The TJD432300WL is commonly installed in commercial facilities and office buildings, industrial control panels and manufacturing equipment, HVAC and refrigeration systems, electrical distribution panels and switchboards, maintenance replacements for compatible Q-Line systems, and three-phase power distribution applications requiring 300 amp protection. Its lug-lug Configuration and molded-case design make it a practical fit for applications that require dependable circuit isolation and overcurrent protection while maintaining compatibility with existing electrical infrastructure.