THKMA826450WL - 450Amp Circuit Breaker

THKMA826450WL - 450 Amp Circuit Breaker

The THKMA826450WL is a 450 Amp, 2-pole THKM8 molded case circuit breaker designed for you to use in commercial and industrial electrical distribution systems where dependable circuit protection is essential. Featuring a thermal magnetic trip unit with internal common trip functionality, this breaker helps you to protect equipment and conductors from overloads and short circuits while maintaining compatibility with existing THKM8 installations. Its cable-in/cable-out (lug-lug) configuration includes both line-side and load-side lugs, simplifying installation and replacement in a variety of switchgear and distribution applications. Built for demanding electrical environments, the THKMA826450WL offers substantial interrupting capacity and is HACR rated, making it suitable for HVAC-related applications as well as other industrial power distribution systems. Designed with durability in mind, this circuit breaker provides a practical form, fit, and function solution for maintaining existing electrical infrastructure.

Key Features and Benefits

• 450 Amp Continuous Current Rating: 450 Amp continuous current rating.
• 2-Pole Configuration: 2-pole configuration for two-phase power distribution applications.
• THKM8 Series Molded Case Circuit Breaker: THKM8 series molded case circuit breaker.
• Thermal Magnetic Trip Unit: Thermal magnetic trip unit provides protection against overloads and short circuits.
• Internal Common Trip Mechanism: Internal common trip mechanism enhances coordinated circuit interruption.
• Cable-In/Cable-Out Design: Cable-in/cable-out (lug-lug) design for straightforward field installation.
• Included Lugs: Includes both line-side and load-side lugs.
• HACR Rated: HACR rated for heating, air conditioning, and refrigeration equipment applications.
• High Interrupting Capacity: High interrupting capacity supports demanding commercial and industrial environments.
• Long Service Life: Built for long service life in electrical distribution systems.
• Replacement Compatibility: Suitable as a form, fit, and function replacement within compatible THKM8 installations.
  

Technical Specifications

• Part Number: THKMA826450WL
  
• Type: THKM8
  
• Poles: 2
  
• Amperes: 450A
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Connection Type: Cable-In/Cable-Out (Lug-Lug)
  
• Included Accessories: Line-Side and Load-Side Lugs
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 15.5 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.
• Interrupting Rating: 25kA @ 600VAC
  
• Interrupting Rating: 35kA @ 480VAC
  
• Interrupting Rating: 65kA @ 240VAC
  

Material Compliance and Certifications

• HACR Rated: HACR Rated for use in heating, air conditioning, and refrigeration applications.
• Electrical Codes and Standards: Designed for installation in accordance with applicable electrical codes and standards.
• Protection Technology: Thermal magnetic protection technology for overcurrent protection in compatible systems.
• Commercial and Industrial Use: Manufactured for use in commercial and industrial electrical distribution equipment.
  

Where It Works Best

• The THKMA826450WL is well suited for industrial facilities, manufacturing plants, commercial buildings, power distribution systems, HVAC equipment, motor control applications, and electrical infrastructure requiring a 450A molded case circuit breaker. Its high interrupting ratings and lug-lug configuration make it an excellent choice for switchboards, panelboards, and distribution equipment where reliable overcurrent protection and compatibility with existing THKM8 installations are important.