TKMA826450 **Older Style** - 450Amp Circuit Breaker

TKMA826450 **Older Style** - 450 Amp Circuit Breaker

The TKMA826450 Older Style Black Face circuit breaker is a 2-pole, 450-amp industrial molded-case circuit breaker designed for your dependable protection in commercial and industrial electrical distribution systems. Built for applications requiring high interrupting capacity and consistent thermal magnetic trip protection, this Type TKM8 breaker is commonly used in switchboards, panelboards, motor control systems, and heavy-duty power distribution equipment. Its interchangeable thermal-magnetic trip unit and internal common trip design help provide coordinated circuit protection while maintaining compatibility with legacy installations.

This bolt-on molded case circuit breaker includes load-side lugs for easier installation and secure conductor termination. The older-style black-face configuration makes it a suitable form, fit, and functional replacement for your maintaining existing electrical systems, where matching specifications and physical compatibility are important. HACR rating further supports its use in HVAC-related applications and other demanding environments where durable overcurrent protection is essential. Built with industrial-grade construction, the TKMA826450 was made for long-term service in challenging electrical environments.

Key Features and Benefits

• 450 amp, 2-pole industrial molded case circuit breaker: Designed for dependable protection in commercial and industrial electrical distribution systems.
• Type TKM8 design: Provides compatibility with existing electrical systems and legacy installations.
• Older style black face configuration: Helps match existing equipment layouts where physical compatibility is important.
• Thermal magnetic trip unit: Provides both overload and short-circuit protection for coordinated circuit safety.
• Interchangeable trip unit design: Supports maintenance flexibility and easier servicing.
• Internal common trip mechanism: Enhances coordinated protection across poles.
• Bolt-on mounting configuration: Allows for secure installation in commercial and industrial applications.
• Includes load-side lugs: Simplifies wiring connections and secure conductor termination.
• HACR rated: Suitable for HVAC and refrigeration equipment applications.
• Commercial and industrial use: Appropriate for power distribution environments requiring durable overcurrent protection.
• Industrial-grade construction: Built to withstand demanding operational conditions over extended service life.
  

Technical Specifications

• Part Number: TKMA826450
  
• Manufacturer Series: TKM8
  
• Circuit Breaker Type: Industrial Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage Rating: 450 Amps
  
• Voltage / A.I.C. Ratings:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• Trip Unit Type: Thermal Magnetic
  
• Trip Design: Internal Common Trip
  
• Mounting Style: Bolt-On
  
• Included Accessories: Load-Side Lugs
  
• HACR Rated: Yes
  
• Face Style: Older Style Black Face
  
• Dimensions:
  • Height: 15.5 in
  • Width: 8.25 in
  • Depth: 5.5 in

Material Compliance and Certifications

• HACR Rated: Approved for heating, air conditioning, and refrigeration applications.
• Commercial and Industrial Applications: Manufactured for use in commercial and industrial electrical distribution systems.
• Operational Standards: Designed to meet applicable molded case circuit breaker operational standards for its class and rating.
• Thermal Magnetic Protection System: Engineered for dependable overcurrent response in demanding electrical environments.
  

Where It Works Best

• The TKMA826450 is well-suited for industrial facilities, manufacturing plants, commercial buildings, mechanical equipment rooms, and large-scale HVAC systems requiring dependable high-amperage circuit protection. It is frequently used in legacy power distribution systems where maintaining compatibility with existing equipment is important. This breaker is also a practical solution for switchgear, panelboards, motor distribution equipment, and heavy electrical infrastructure that rely on bolt-on molded-case breakers with high interrupting ratings.