TJJ426250WL **Older Style** - 250Amp Circuit Breaker

TJJ426250WL **Older Style** - 250 Amp Circuit Breaker

The TJJ426250WL molded case circuit breaker is designed for you to use in commercial and industrial electrical distribution systems that require dependable overcurrent protection and compatibility with existing equipment. This 250-amp, 2-pole Type TJJ breaker features the familiar older style black face design often found in legacy installations, making it a practical replacement option for maintaining consistent fit and configuration within existing assemblies.

Built with a thermal magnetic trip unit, the breaker responds to both overload and short-circuit conditions to help protect connected equipment and electrical systems. Its internal common trip design allows both poles to trip together during a fault condition. The lug-lug configuration supports cable-in/cable-out installations, and both line-side and load-side lugs are included for added convenience during setup.

The TJJ426250WL is commonly used in switchgear, panelboards, and HVAC-related applications where matching existing system requirements is important. Its molded case construction is designed for long service life in demanding operating environments.

Key Features and Benefits

• 250 amp current rating: Designed for commercial and industrial applications requiring dependable circuit protection.
• 2-pole configuration: Suitable for compatible electrical distribution systems and installations.
• Older style black face design: Helps maintain compatibility with legacy equipment and existing assemblies.
• Thermal magnetic trip unit: Provides overload and short-circuit protection for connected equipment and systems.
• Internal common trip mechanism: Allows simultaneous pole operation during a fault condition.
• Cable-in/cable-out lug-lug connection style: Supports practical installation flexibility for electrical connections.
• Includes line-side and load-side lugs: Added convenience during installation and setup.
• HACR rated: Suitable for HVAC applications requiring HACR designation.
• Molded case construction: Designed for long-term use in demanding operating environments.
• Commonly used in panelboards and switchgear systems: Helps support compatibility within existing commercial and industrial systems.
  

Technical Specifications

• Part Number: TJJ426250WL
  
• Type: TJJ
  
• Style: Older Style Black Face
  
• Breaker Type: Molded Case Circuit Breaker
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Poles: 2
  
• Amperage: 250A
  
• A.I.C. Rating: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Connection Type: Cable-In/Cable-Out (Lug-Lug)
  
• Trip Function: Internal Common Trip
  
• Included: 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

• Commercial and Industrial Use: The TJJ426250WL is manufactured for use in commercial and industrial electrical systems requiring molded case circuit protection.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration applications where this designation is required.
• Installation Guidelines: Installation should always follow applicable electrical codes and manufacturer guidelines.
  

Where It Works Best

• This breaker is commonly used in existing commercial electrical distribution systems, industrial control and power distribution equipment, HVAC and refrigeration applications, panelboards and switchgear assemblies, maintenance projects requiring compatible replacement breakers, and facilities operating legacy Type TJJ equipment. Its older style black face configuration can help maintain consistency with existing installed equipment while supporting continued operation of established electrical systems.