TKMA826450WL - 450Amp Circuit Breaker

TKMA826450WL - 450 Amp Circuit Breaker

The TKMA826450WL is a 2-pole, 450 amp molded case circuit breaker used in your commercial and industrial electrical systems that require dependable overcurrent protection. Designed with a thermal magnetic trip unit and internal common trip, this breaker helps you protect equipment and wiring from overloads and short circuits while maintaining compatibility with existing TKM8 installations. This model features a cable-in/cable-out lug-lug configuration and includes both line-side and load-side lugs. That setup helps simplify installation and replacement work in switchgear, panelboards, and other distribution equipment already designed around this breaker style. The HACR rating also makes it suitable for HVAC and refrigeration applications commonly found in larger facilities. With interrupting ratings of 22k @ 600VAC, 30k @ 480VAC, and 42k @ 240VAC, the TKMA826450WL is built for use in higher-capacity electrical systems where reliable fault protection is required. Its molded case construction is designed for long-term use in demanding environments such as manufacturing plants, commercial buildings, and industrial facilities.

Key Features and Benefits

• 450 Amp Molded Case Circuit Breaker: Designed for commercial and industrial electrical systems that require dependable overcurrent protection.
• 2-Pole Design: Suitable for applications requiring 2-pole circuit protection within compatible TKM8 systems.
• Thermal Magnetic Trip Unit: Helps protect equipment and wiring from overloads and short circuits through thermal magnetic protection technology.
• Internal Common Trip Operation: Provides coordinated tripping functionality for connected poles during fault conditions.
• Cable-In/Cable-Out Lug-Lug Configuration: Simplifies installation and replacement work in switchgear, panelboards, and other compatible distribution equipment.
• Includes Line and Load-Side Lugs: Comes equipped with both line-side and load-side lugs for installation convenience.
• HACR Rated: Suitable for HVAC and refrigeration applications commonly found in larger facilities.
• Form, Fit, and Functional Replacement: Designed to maintain compatibility with existing TKM8 installations and compatible systems.
  

Technical Specifications

• Part Number: TKMA826450WL
  
• Type: TKM8
  
• Poles: 2
  
• Amperage: 450A
  
• Trip Unit: Thermal Magnetic
  
• Configuration: Cable-In/Cable-Out (Lug-Lug)
  
• A.I.C. Rating: 22k @ 600VAC
  
• A.I.C. Rating: 30k @ 480VAC
  
• A.I.C. Rating: 42k @ 240VAC
  
• Dimensions:
  • Height: 15.5 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.
• Included Accessories: Line and Load-Side Lugs
  
• HACR Rated: Yes
  

Material Compliance and Certifications

• HACR Rated: Suitable for HVAC and refrigeration applications.
• Commercial and Industrial Use: Suitable for commercial and industrial electrical distribution systems.
• Qualified Installation Required: Intended for installation by qualified electrical personnel.
• Thermal Magnetic Protection: Designed for applications requiring thermal magnetic circuit protection.
  

Where It Works Best

• The TKMA826450WL is commonly used in industrial facilities, commercial buildings, HVAC systems, distribution equipment, and motor-related applications that require high-amperage circuit protection. It is especially useful in existing TKM8 systems where maintaining compatibility with original equipment is important.