TJJ426350WL - 350Amp Circuit Breaker

TJJ426350WL - 350 Amp Circuit Breaker

The TJJ426350WL molded case circuit breaker is designed for dependable circuit protection in your commercial and industrial electrical distribution systems where high-amperage performance and consistent operation are essential. Built as part of the Q-Line family, this 2-pole, 350-amp breaker features a non-interchangeable thermal-magnetic trip unit with internal common trip functionality to help you protect connected equipment from overloads and short circuits. Its cable-in/cable-out lug-lug configuration simplifies installation in a variety of switchgear and panelboard applications, while the included line- and load-side lugs support secure conductor connections. Engineered for long service life and reliable operation in demanding environments, the TJJ426350WL is HACR-rated and suited for HVAC equipment, distribution systems, and heavy-duty electrical applications requiring dependable protection across multiple voltage ratings.

Key Features and Benefits

• 350 Amp Molded Case Circuit Breaker: Designed for commercial and industrial power distribution.
• 2-Pole Configuration: Compatible with multi-phase electrical systems.
• Thermal Magnetic Trip Unit: Helps provide dependable overload and short-circuit protection.
• Internal Common Trip Mechanism: Allows simultaneous tripping of both poles.
• Q-Line Series Design: Designed for form, fit, and functional replacement applications.
• Cable-In/Cable-Out Configuration: The lug-lug configuration supports straightforward installation.
• Included Line-Side and Load-Side Lugs: Supports secure conductor connections.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment applications.
• Built for Demanding Environments: Engineered for long service life and reliable operation.
• Compact Footprint: Helps support installation in space-conscious equipment layouts.
  

Technical Specifications

• Part Number: TJJ426350WL
  
• Type: TJJ
  
• Product Category: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage: 350A
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Configuration: Cable-in/Cable-out (Lug-Lug)
  
• A.I.C. Rating:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• HACR Rated: Yes
  
• Included Accessories: Line and Load-Side Lugs
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: The TJJ426350WL circuit breaker is HACR-rated for use with heating, air conditioning, and refrigeration equipment.
• Commercial and Industrial Use: It is manufactured for use in commercial and industrial electrical systems where proper interrupting capacity and compliance with circuit protection requirements are required.
• Compatibility Verification: Always verify compatibility with your specific equipment and application requirements before installation.
  

Where It Works Best

• The TJJ426350WL is commonly used in commercial buildings, manufacturing facilities, HVAC systems, distribution equipment, and industrial control applications that require dependable 350-amp overcurrent protection. Its lug-lug configuration and thermal magnetic trip functionality make it well-suited for panelboards, switchboards, and legacy power distribution systems where matching form and fit are important for maintenance or replacement projects.