TKMA836450WL - 450Amp Circuit Breaker

TKMA836450WL - 450 Amp Circuit Breaker

The TKMA836450WL is a 3-pole, 450 amp molded case circuit breaker designed for your commercial and industrial electrical systems. It uses a thermal magnetic trip unit to help protect equipment and power distribution systems from overloads and short circuits. The internal common trip mechanism allows all three poles to trip together during a fault condition.

This breaker features a cable-in/cable-out lug-lug setup and includes both line- and load-side lugs. It is commonly used in switchboards, panelboards, HVAC equipment, and other three-phase power applications where matching existing TKM8 equipment is important. Its compact design and standard connection layout can help simplify installation and maintenance in existing systems.

Built for long-term service, the TKMA836450WL is suited for facilities that rely on dependable circuit protection in everyday operation. The HACR rating also makes it suitable for heating, air conditioning, and refrigeration applications.

Key Features and Benefits

• 450 amp molded case circuit breaker
• 3-pole configuration
• Thermal magnetic trip unit
• Internal common trip design
• Cable-in/cable-out lug-lug configuration
• Includes line-side and load-side lugs
• HACR rated
• Designed for TKM8 systems and compatible equipment
• Suitable for commercial and industrial applications

Technical Specifications

• Part Number: TKMA836450WL
  
• Type: TKM8
  
• Poles: 3
  
• Amperage: 450A
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Configuration: Cable-in/Cable-out (Lug-Lug)
  
• Included Accessories: Line and Load-Side Lugs
  
• 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.
• HACR Rated: Yes
  

Material Compliance and Certifications

• HACR Rated for HVAC and refrigeration equipment
• Designed for commercial and industrial electrical distribution systems
• Thermal magnetic protection for overload and short-circuit conditions
• Compatible with applicable molded case circuit breaker installation standards

Where It Works Best

• The TKMA836450WL is commonly used in industrial facilities, commercial buildings, HVAC systems, manufacturing equipment, and electrical distribution setups requiring 450 amp, three-phase circuit protection. It is especially useful in existing TKM8 installations where maintaining the correct fit and electrical rating is important.