THKMA826450 - 450Amp Circuit Breaker

THKMA826450 - 450 Amp Circuit Breaker

The THKMA826450 is a 450 amp, 2-pole molded case circuit breaker used in commercial and industrial electrical distribution systems. Part of the THKM8 series, this breaker features a thermal magnetic trip unit that helps protect equipment from overloads and short circuits. The trip unit is interchangeable, making maintenance and service work easier when system requirements change. This breaker uses a bolt-on mounting design and includes load-side lugs for installation. An internal common trip mechanism ensures both poles trip together when a fault occurs. With interrupting ratings of 65kA at 240VAC, 35kA at 480VAC, and 25kA at 600VAC, the THKMA826450 is suitable for applications where substantial fault-current protection is required. You'll often find breakers like this in switchboards, panelboards, motor control equipment, manufacturing facilities, and large commercial buildings. The HACR rating also makes it suitable for many heating, ventilation, air conditioning, and refrigeration applications where the electrical system calls for this type of protection. For facilities already using compatible THKM8 equipment, the THKMA826450 offers the form, fit, and function needed to keep existing electrical systems operating as intended. Like many industrial molded case breakers from this class, it was built for long service life and everyday use in demanding electrical environments.

Key Features and Benefits

• 450 Amp current rating
• 2-pole configuration
• THKM8 frame type
• Interchangeable thermal magnetic trip unit
• Internal common trip design
• Bolt-on mounting
• Includes load-side lugs
• HACR rated
• Suitable for commercial and industrial power distribution applications

Technical Specifications

• Part Number: THKMA826450
  
• Type: THKM8
  
• Poles: 2
  
• Amperage: 450A
  
• Trip Unit: Thermal Magnetic
  
• Mounting: Bolt-On
  
• A.I.C. Rating: 65kA @ 240VAC
  
• A.I.C. Rating: 35kA @ 480VAC
  
• A.I.C. Rating: 25kA @ 600VAC
  
• Dimensions:
  • Height: 15.5 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.
• Included: Load-Side Lugs
  
• HACR Rated: Yes
  

Material Compliance and Certifications

• HACR Rated
• Manufactured for commercial and industrial electrical applications
• Install and maintain according to applicable electrical codes and equipment requirements

Where It Works Best

• The THKMA826450 is commonly used in industrial facilities, manufacturing plants, commercial buildings, power distribution equipment, motor control systems, and HVAC-related applications that require a 450 amp, 2-pole molded case circuit breaker.