TJK436225 **Older Style** - 225Amp Circuit Breaker

TJK436225 **Older Style** - 225 Amp Circuit Breaker

The TJK436225 molded case circuit breaker is a 3-pole, 225-amp breaker designed for your commercial and industrial power distribution systems that require dependable overcurrent protection in legacy electrical equipment. Built as part of the Q-Line Type TJK4 series, this breaker features an older-style black-face configuration. It is commonly used in switchboards, panelboards, and distribution equipment where exact form, fit, and function compatibility are critical. Its thermal magnetic trip unit protects against both overloads and short circuits, while the internal common trip mechanism helps you ensure all poles disconnect simultaneously during fault conditions. Designed with a non-interchangeable trip unit and bolt-on mounting, the TJK436225 offers secure installation and stable electrical connections for demanding environments. Load-side lugs are included, helping simplify installation and replacement in existing systems built to accommodate this breaker style.

Built to last and engineered for consistent operation, this breaker is HACR rated for heating, air conditioning, and refrigeration applications. The compact, molded-case design supports use in facilities where dependable circuit protection is required to maintain electrical system continuity and equipment safety.

Key Features and Benefits

• 225 Amp Molded Case Circuit Breaker: Designed for commercial and industrial distribution systems requiring dependable overcurrent protection.
• Older Style Black Face Configuration: Supports compatibility with existing equipment layouts and legacy installations.
• 3-Pole Design: Supports three-phase electrical applications in commercial and industrial systems.
• Thermal Magnetic Trip Unit: Helps protect against overloads and short circuits for dependable circuit interruption.
• Internal Common Trip Mechanism: Disconnects all poles simultaneously during fault conditions to help maintain system safety.
• Bolt-On Mounting Design: Provides secure installation in compatible panels and switchboards.
• Includes Load-Side Lugs: Simplifies wiring connections during installation and replacement.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment applications.
• Non-Interchangeable Trip Unit Configuration: Helps maintain original breaker specifications and compatibility.
• Q-Line Type TJK4 Construction: Suited for legacy electrical infrastructure and replacement requirements.
  

Technical Specifications

• Part Number: TJK436225
  
• Type: TJK4
  
• Product Style: Older Style Black Face
  
• Poles: 3
  
• Amperage Rating: 225 Amps
  
• Voltage & A.I.C. Ratings: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Trip Unit: Thermal Magnetic
  
• Trip Configuration: Internal Common Trip
  
• Mounting Type: Bolt-On
  
• Lug Configuration: Includes 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: Rated for heating, air conditioning, and refrigeration system applications.
• Commercial and Industrial Use: Manufactured and tested for use in commercial and industrial electrical distribution systems.
• Molded Case Construction: Designed for long-term durability in properly maintained electrical environments.
• Industry Standards: Designed to meet applicable industry standards associated with thermal magnetic molded case circuit breakers.
  

Where It Works Best

• The TJK436225 circuit breaker is commonly used in commercial buildings and office facilities, industrial manufacturing equipment, HVAC and refrigeration systems, distribution panels and switchboards, electrical maintenance and retrofit projects, facilities requiring replacement breakers for existing Q-Line TJK4 installations, and three-phase power distribution applications requiring 225A overcurrent protection. This breaker is particularly well-suited for maintaining compatibility with existing electrical systems, where matching breaker dimensions, mounting style, and operational characteristics are important for safe, proper installation.