TJJ436250WL **Older Style** - 250Amp Circuit Breaker

TJJ436250WL  **Older Style** - 250 Amp Circuit Breaker

When you're keeping an existing electrical system running smoothly, finding the right breaker matters. The TJJ436250WL molded case circuit breaker is built for dependable protection in commercial and industrial power distribution systems that rely on legacy Q-Line equipment. Featuring the sought-after older style black face, this 250 amp, 3-pole Type TJJ breaker is a practical solution for maintaining compatibility without altering your current setup.

Designed with a thermal magnetic trip unit, the TJJ436250WL helps you to protect connected equipment from overloads and short circuits while its internal common trip mechanism disconnects all poles simultaneously during fault conditions. The included line-side and load-side lugs make installation easier, especially in applications where a straightforward cable-in/cable-out configuration is preferred.

This breaker is commonly found in panelboards, switchgear, and distribution systems powering manufacturing facilities, commercial buildings, HVAC equipment, and heavy-duty electrical loads. Because it’s HACR rated, it’s also suitable for properly specified heating, air conditioning, and refrigeration applications. Built to last and designed for reliable operation, the TJJ436250WL delivers the form, fit, and function needed for servicing existing electrical infrastructure with confidence.

Key Features and Benefits

• 250 Amp Rating: For commercial and industrial power distribution systems.
• 3-Pole Configuration: Designed for three-phase electrical applications.
• Older Style Black Face: Supports compatibility with existing installations.
• Thermal Magnetic Trip Unit: Helps respond to overloads and short circuits.
• Internal Common Trip: Disconnects all poles simultaneously for added protection.
• Cable-In/Cable-Out (Lug-Lug) Design: Supports straightforward installation.
• Includes Line and Load-Side Lugs: For installation convenience.
• HACR Rated: Suitable for use in heating, air conditioning, and refrigeration applications where specified.
• Built for Long-Term Service: Designed for demanding electrical environments.
  

Technical Specifications

• Part Number: TJJ436250WL
  
• Type: TJJ
  
• Product Category: Molded Case Circuit Breaker
  
• Series: Q-Line
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Non-Interchangeable
  
• Poles: 3
  
• Amperage Rating: 250 Amps
  
• Voltage / A.I.C. Ratings: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Configuration: Cable-In/Cable-Out (Lug-Lug)
  
• Trip Function: Internal Common Trip
  
• 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

• Electrical System Compatibility: The TJJ436250WL is designed for use in electrical distribution systems requiring dependable overcurrent protection in commercial and industrial environments.
• HACR Rated: Manufactured for applications where compliance with applicable electrical standards and proper equipment compatibility are required. Always confirm installation requirements and local electrical codes before use.
  

Where It Works Best

• The TJJ436250WL circuit breaker is commonly used in commercial electrical distribution systems, industrial control and power panels, existing Q-Line panelboards and switchgear, HVAC and refrigeration equipment circuits, manufacturing facilities, and utility systems. It is also ideal for service replacements requiring older-style black face compatibility. Whether you’re maintaining an existing facility or replacing a breaker in legacy equipment, the TJJ436250WL offers a dependable fit for applications where compatibility, protection, and straightforward installation are essential.