THKMA826350 - 350Amp Circuit Breaker

THKMA826350 - 350 Amp Circuit Breaker

The THKMA826350 is a 2-pole, 350-amp industrial molded case circuit breaker designed for dependable overcurrent and short-circuit protection in your commercial and industrial electrical distribution systems. Built with a thermal magnetic trip unit and internal common trip mechanism, this breaker helps you to protect connected equipment by responding to both sustained overload conditions and sudden fault currents. Its bolt-on mounting design provides a secure installation, while the included load-side lugs simplify conductor termination. Designed for applications requiring high interrupting capacity, the THKMA826350 delivers the form, fit, and function needed for maintaining and servicing existing electrical systems.

The THKMA826350 remains a practical solution when maintaining the integrity and safety of existing electrical infrastructure.

Key Features and Benefits

• 350 Amp Current Rating: 350 Amp current rating for high-capacity electrical distribution applications.
• 2-Pole Configuration: 2-pole configuration for the protection of two energized conductors.
• Thermal Magnetic Trip Unit: The thermal magnetic trip unit provides protection against overloads and short circuits.
• Interchangeable Trip Unit Design: Interchangeable trip unit design supports serviceability and system maintenance.
• Internal Common Trip Mechanism: The internal common trip mechanism helps ensure the simultaneous disconnection of both poles during fault conditions.
• Bolt-On Mounting Configuration: Bolt-on mounting configuration offers secure installation in compatible equipment.
• HACR Rated: HACR rated for use in heating, air conditioning, and refrigeration applications.
• Included Load-Side Lugs: Includes load-side lugs for convenient conductor termination.
• Designed for Industrial and Commercial Electrical Distribution Systems: Designed for industrial and commercial electrical distribution systems.
• Built to Last: Built to last for long-term service in demanding environments.
  

Technical Specifications

• Part Number: THKMA826350
  
• Type: THKM8
  
• Poles: 2
  
• Amperes: 350A
  
• Trip Unit: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Common Trip: Internal Common Trip
  
• Interrupting Rating:
  • 25kA @ 600VAC
  • 35kA @ 480VAC
  • 65kA @ 240VAC
• HACR Rated: Yes
  
• Included Accessories: Load-Side Lugs
  
• Dimensions:
  • Height: 15.5 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.

Material Compliance and Certifications

• HACR Rated: HACR Rated for heating, air conditioning, and refrigeration applications.
• Commercial and Industrial Use: Designed and manufactured for use in commercial and industrial electrical systems.
• Installation Requirements: Intended for installation and operation in accordance with applicable electrical codes and equipment specifications.
• Compatibility Verification: Verify compatibility with the intended panelboard, switchboard, or distribution equipment before installation.
  

Where It Works Best

• The THKMA826350 is commonly used in commercial facilities, industrial plants, manufacturing operations, power distribution equipment, HVAC systems, motor control applications, and other installations requiring a 2-pole 350-amp circuit breaker with substantial interrupting capacity. It is particularly well-suited for maintaining existing electrical systems where a compatible THKM8 breaker is required to match original equipment specifications and ratings.