TKMA826400WL - 400Amp Circuit Breaker

TKMA826400WL - 400 Amp Circuit Breaker

The TKMA826400WL molded case circuit breaker is built for your commercial and industrial electrical systems that require dependable overcurrent protection in higher-amperage applications. Designed with a thermal magnetic trip unit and internal common trip mechanism, this 2-pole, 400-amp breaker helps protect connected equipment from overloads and short circuits while maintaining compatibility with existing TKM8 systems. The cable-in/cable-out lug-lug design includes both line- and load-side lugs, helping simplify installation and replacement work in switchboards, panelboards, and distribution equipment. Its HACR rating also makes it suitable for HVAC and refrigeration applications where reliable circuit protection is important for day-to-day operation. Built for industrial environments, the TKMA826400WL is designed for long-term service in demanding electrical systems.

Key Features and Benefits

• 400 Amp Industrial Molded Case Circuit Breaker: Built for commercial and industrial electrical systems requiring dependable overcurrent protection in higher-amperage applications.
• 2-Pole Configuration: Designed for commercial and industrial applications where reliable circuit protection is required.
• Thermal Magnetic Trip Unit: Helps protect connected equipment from overloads and short circuits through dependable thermal magnetic protection.
• Internal Common Trip Design: Provides coordinated tripping across poles during fault conditions.
• Cable-In/Cable-Out Lug-Lug Connection Style: Includes line-side and load-side lugs to help simplify installation and replacement work.
• HACR Rated: Suitable for heating, ventilation, air conditioning, and refrigeration equipment applications where reliable circuit protection is important for day-to-day operation.
• Compatible with TKM8 Systems: Designed for use in compatible TKM8 electrical systems.
• Built for Long-Lasting Operation: Designed for long-term service in demanding and heavy-use industrial environments.
  

Technical Specifications

• Part Number: TKMA826400WL
  
• Type: TKM8
  
• Poles: 2
  
• Amperage: 400A
  
• Interrupting Ratings:
  • 22k A.I.C. @ 600VAC
  • 30k A.I.C. @ 480VAC
  • 42k A.I.C. @ 240VAC
• Trip Unit Type: Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Connection Type: Lug-Lug (Cable-In/Cable-Out)
  
• Included: Line and Load-Side Lugs
  
• Dimensions:
  • Height: 15.5 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.

Material Compliance and Certifications

• HACR Rated: Suitable for heating and cooling equipment applications.
• Commercial and Industrial Use: Suitable for commercial and industrial electrical distribution systems.
• Compatibility: Manufactured for use in compatible molded case circuit breaker assemblies.
  

Where It Works Best

• The TKMA826400WL is commonly used in industrial plants, commercial buildings, HVAC systems, distribution equipment, and large electrical service applications requiring a 400-amp breaker. It works well in feeder circuits, switchboards, and panelboards where maintaining compatibility with existing equipment is important. Its interrupting capacity ratings make it suitable for systems where a higher available fault current may be present.