THKMA826350WL - 350Amp Circuit Breaker

THKMA826350WL - 350 Amp Circuit Breaker

The THKMA826350WL is a 350-amp, 2-pole molded case circuit breaker designed for your commercial and industrial power distribution systems requiring dependable overcurrent and short-circuit protection. Built with a thermal magnetic trip unit and internal common trip mechanism, this breaker helps you protect electrical equipment and conductors from overloads and fault conditions while maintaining compatibility with systems utilizing the THKM8 frame platform. Its cable-in/cable-out (lug-lug) configuration includes both line-side and load-side lugs, making it well-suited for installations where direct cable termination is required.

Engineered for demanding electrical environments, the THKMA826350WL features an interchangeable thermal magnetic trip unit, allowing maintenance personnel to service or configure the breaker as system requirements evolve. The breaker carries HACR certification, making it suitable for use in heating, air conditioning, and refrigeration applications where code-compliant circuit protection is essential. Built to last and designed for reliable operation, this industrial molded case circuit breaker provides a practical form, fit, and functional solution for maintaining existing electrical distribution systems.

Key Features and Benefits

• 350 Amp Continuous Current Rating: 350 Amp continuous current rating for high-capacity power 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 both overload and short-circuit conditions.
• Interchangeable Trip Unit Design: Interchangeable trip unit design supports maintenance and system flexibility.
• Internal Common Trip Mechanism: The internal common trip mechanism helps ensure the simultaneous tripping of all poles during fault conditions.
• Cable-In/Cable-Out Design: Cable-in/cable-out (lug-lug) design simplifies direct conductor termination.
• Included Lugs: Includes both line-side and load-side lugs.
• HACR Rated: HACR rated for heating, air conditioning, and refrigeration equipment applications.
• Commercial and Industrial Use: Designed for commercial and industrial electrical systems.
• Built for Long-Term Service: Built for long-term service in demanding environments.
  

Technical Specifications

• Part Number: THKMA826350WL
  
• Type: THKM8
  
• Amperage Rating: 350 Amps
  
• Poles: 2
  
• Trip Unit: Thermal Magnetic
  
• Trip Mechanism: Internal Common Trip
  
• Connection Type: Cable-In/Cable-Out (Lug-Lug)
  
• Included Accessories: Line-Side and Load-Side Lugs
  
• A.I.C. Rating:
  • 25kA @ 600VAC
  • 35kA @ 480VAC
  • 65kA @ 240VAC
• Dimensions:
  • Height: 15.5 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.
• HACR Rated: Yes
  

Material Compliance and Certifications

• HACR Certification: HACR Rated for use in heating, air conditioning, and refrigeration applications.
• Commercial and Industrial Installation: Manufactured for installation in commercial and industrial electrical systems.
• Performance Requirements: Designed to meet applicable molded case circuit breaker performance requirements for its rated voltage and interrupting capacities.
• Coordinated Fault Protection: Internal common trip design supports coordinated fault protection across all poles.
  

Where It Works Best

• The THKMA826350WL is commonly used in industrial facilities, manufacturing plants, commercial buildings, motor control systems, distribution equipment, HVAC installations, and large electrical service applications where a 350A, 2-pole molded case circuit breaker is required. Its high interrupting capacity ratings and thermal magnetic protection make it well-suited for protecting feeders, distribution circuits, and equipment operating in demanding electrical environments.