TKMA836500WL **Older Style** - 500Amp Circuit Breaker

TKMA836500WL **Older Style** - 500 Amp Circuit Breaker

The TKMA836500WL molded case circuit breaker is designed for your industrial and commercial electrical systems that still rely on older TKM8 equipment. With a 500-amp rating and 3-pole configuration, this breaker is commonly used in switchgear, panelboards, and large power distribution systems where dependable circuit protection is required every day.

This older-style black-face breaker uses a thermal magnetic trip unit to help protect against overloads and short circuits. It also features an internal common trip mechanism and an interchangeable trip unit design, making it a good fit for maintaining existing equipment without major system changes. The cable-in/cable-out lug-lug configuration allows for direct connections, and both line-side and load-side lugs are included.

In many facilities, the goal is simple: keep the system running with the right replacement parts that match the original setup. The TKMA836500WL is built for that purpose. Its size, ratings, and configuration make it a practical option for older electrical systems where compatibility matters just as much as protection.

Key Features and Benefits

• 500 amp molded case circuit breaker: Designed for dependable circuit protection in commercial and industrial electrical systems.
• Older style black face design: Built to match older TKM8 equipment configurations where maintaining original equipment layout is important.
• 3-pole configuration for three-phase systems: Suitable for heavy-duty three-phase electrical distribution applications.
• Thermal magnetic trip unit: Helps protect against overloads and short circuits during normal operation.
• Internal common trip operation: Provides coordinated tripping across all poles when required.
• Interchangeable trip unit design: Supports maintaining existing systems without major equipment changes.
• Cable-in/Cable-out (Lug-Lug) connections: Allows for direct cable connections for installation convenience.
• Includes line-side and load-side lugs: Both line and load-side lugs are included for installation compatibility.
• HACR rated: Suitable for heating, air conditioning, and refrigeration system applications where permitted by local electrical codes.
• Built for commercial and industrial applications: Commonly used in switchgear, panelboards, manufacturing facilities, and large power distribution systems.
  

Technical Specifications

• Part Number: TKMA836500WL
  
• Type: TKM8
  
• Poles: 3
  
• Amperage: 500A
  
• Dimensions:
  • Height: 15.5 in
  • Width: 8.25 in
  • Depth: 5.5 in
• A.I.C. Ratings:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• Trip Unit: Thermal Magnetic
  
• Connection Type: Cable-in/Cable-out (Lug-Lug)
  
• Trip Function: Internal Common Trip
  
• Included: Line and Load-Side Lugs
  
• HACR Rated: Yes
  

Material Compliance and Certifications

• Commercial and Industrial Use: The TKMA836500WL is intended for use in commercial and industrial electrical distribution systems that require overcurrent protection for existing equipment applications.
• HACR Rating: The HACR rating supports use with heating, air conditioning, and refrigeration systems where applicable and permitted by local electrical codes.
  

Where It Works Best

• This breaker is commonly used in industrial plants, commercial buildings, manufacturing facilities, HVAC equipment, and other heavy-duty electrical distribution systems that use TKM8 breaker configurations. It is especially useful in applications where maintaining the original equipment layout and breaker style is important.