TJK426250WL **Older Style** - 250Amp Circuit Breaker

TJK426250WL **Older Style** - 250 Amp Circuit Breaker

The TJK426250WL molded case circuit breaker is a dependable solution designed for your commercial and industrial electrical distribution systems that require reliable overcurrent protection in existing installations. Built as part of the Q-Line family, this 2-pole, 250 amp circuit breaker features a thermal magnetic trip unit with internal common trip, helping you to protect electrical equipment and conductors from overloads and short circuits. Its cable-in/cable-out lug-lug configuration allows for straightforward installation in compatible switchboards, panelboards, and distribution equipment.

This breaker includes both line-side and load-side lugs, making it suitable for applications where maintaining original equipment configuration and fitment matters. The older style black face design is especially useful for facilities maintaining legacy electrical systems that require matching form and function. With interrupting ratings of 22kA at 600VAC, 30kA at 480VAC, and 42kA at 240VAC, the TJK426250WL is built to handle demanding electrical environments while supporting safe system operation. Its HACR rating also makes it appropriate for certain heating, air conditioning, and refrigeration applications where properly rated protection devices are required.

Key Features and Benefits

• 250 amp molded case circuit breaker: Designed for commercial and industrial power distribution.
• 2-pole configuration: Suitable for compatible two-phase or single-phase applications.
• Older style black face construction: Useful for legacy system compatibility.
• Thermal magnetic trip unit: Helps provide dependable overload and short-circuit protection.
• Internal common trip mechanism: Enhances coordinated breaker operation.
• Q-Line series breaker: Engineered for use in compatible electrical distribution equipment.
• Cable-in/cable-out lug-lug design: Simplifies conductor termination.
• Includes line-side and load-side lugs: Supports original equipment configuration requirements.
• HACR rated: Appropriate for heating, air conditioning, and refrigeration system applications.
• Built for demanding electrical environments: Designed for long-term service reliability.
  

Technical Specifications

• Part Number: TJK426250WL
  
• Type: TJK4
  
• Product Category: Molded Case Circuit Breaker
  
• Amperage Rating: 250 Amps
  
• Number of Poles: 2
  
• Voltage / A.I.C. Rating:
  • 22kA @ 600VAC
  • 30kA @ 480VAC
  • 42kA @ 240VAC
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Configuration: Cable-In/Cable-Out (Lug-Lug)
  
• Series: Q-Line
  
• 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 TJK426250WL circuit breaker is manufactured for use in electrical distribution systems requiring properly rated molded case circuit protection.
• Application Compliance: The breaker supports applications involving heating, ventilation, air conditioning, and refrigeration equipment when installed according to applicable electrical codes and system requirements.
• Installation Requirements: Always confirm compatibility, interrupting capacity, and installation requirements with your existing equipment specifications and local electrical regulations.
  

Where It Works Best

• Commercial buildings
• Industrial facilities
• Manufacturing plants
• HVAC distribution systems
• Legacy electrical switchgear and panelboard applications
• Electrical maintenance and replacement projects requiring matching configuration and ratings
• Its form, fit, and electrical ratings make it particularly useful for maintaining existing systems where compatible replacement breakers are needed without altering the original equipment layout or wiring configuration.