TKMA826500WL **Older Style** - 500Amp Circuit Breaker

TKMA826500WL **Older Style** - 500 Amp Circuit Breaker

The TKMA826500WL, older-style black-face molded-case circuit breaker, is designed for your industrial and commercial electrical distribution systems that require dependable overcurrent protection in higher-amperage applications. Built with a thermal magnetic trip unit and internal common trip, this 2-pole, 500-amp breaker is well-suited for protecting feeders, large equipment, and power distribution circuits operating in demanding environments. Its cable-in/cable-out lug-lug configuration simplifies installation in compatible legacy systems, while the interchangeable trip unit design supports serviceability and continued system compatibility. With HACR rating and multiple interrupting capacities at 600VAC, 480VAC, and 240VAC, this breaker is commonly used in manufacturing facilities, mechanical rooms, switchgear lineups, and industrial panel applications where maintaining the original form, fit, and function matters. Built to last, the TKMA826500WL provides reliable protection for existing electrical infrastructure without unnecessary changes to system layout or operation.

Key Features and Benefits

• 500 amp, 2-pole industrial molded case circuit breaker: Designed for industrial power distribution systems requiring dependable overcurrent protection in higher-amperage applications.
• Older style black face configuration: Supports compatibility with existing equipment and legacy electrical systems where maintaining original form and fit is important.
• Thermal Magnetic Trip Unit: Provides both overload and short-circuit protection for feeders, large equipment, and power distribution circuits operating in demanding environments.
• Internal Common Trip Mechanism: Helps improve coordinated circuit interruption and supports reliable system protection during fault conditions.
• Cable-In/Cable-Out Lug-Lug Design: Includes both line-side and load-side lugs to simplify installation in compatible systems.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment applications in commercial and industrial environments.
• Interchangeable Trip Unit Design: Supports maintenance and service flexibility while helping preserve system compatibility.
• Compact Footprint: Ideal for higher-amperage installations requiring dependable protection without unnecessary changes to system layout or operation.
  

Technical Specifications

• Part Number: TKMA826500WL
  
• Style: Older Style Black Face
  
• Type: TKM8
  
• Poles: 2
  
• Amperage: 500A
  
• Dimensions:
  • Height: 15.5"
  • Width: 8.25"
  • Depth: 5.5"
• Voltage & A.I.C. Ratings: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Connection Type: Cable-In/Cable-Out (Lug-Lug)
  
• Included Accessories: Line and Load-Side Lugs
  
• HACR Rated: Yes
  

Material Compliance and Certifications

• HACR Rated: The TKMA826500WL circuit breaker is HACR rated for applications involving heating, ventilation, air conditioning, and refrigeration systems.
• Industrial Application Compliance: It is engineered for use in industrial electrical distribution equipment requiring molded case circuit protection with specified interrupting capacities at multiple voltage levels.
• Professional Installation Requirement: This breaker is intended for installation and operation by qualified electrical professionals in accordance with applicable local and national electrical codes.
  

Where It Works Best

• The TKMA826500WL is commonly used in industrial facilities, commercial buildings, utility distribution equipment, and large mechanical systems where high-amperage branch or feeder protection is required. It is especially useful in existing electrical systems that depend on older-style black-face TKM8 breakers for proper compatibility and fit. Typical applications include switchboards, panelboards, motor control equipment, HVAC systems, manufacturing machinery, and facility power distribution networks, where maintaining the original system design is important.