TKMA836300 **Older Style** - 300Amp Circuit Breaker

TKMA836300 **Older Style** - 300Amp Circuit Breaker

The TKMA836300 Older Style Black Face is a 300-amp, 3-pole industrial molded case circuit breaker from the TKM8 series, designed for your compatible industrial and commercial electrical distribution equipment. With a bolt-on connection configuration, an interchangeable thermal-magnetic trip unit, and an internal common-trip mechanism, this breaker is especially useful for maintaining established electrical systems. Its distinctive older-style black face is a key visual identifier for the correct replacement configuration, especially in legacy installations where matching the original equipment's form, fit, and function matters.

Key Features and Benefits

• 300-Amp Current Rating
• Three-Pole Configuration
• Older Style Black Face
• TKM8 Series Design
• Industrial Molded Case Construction
• Bolt-On Connection Configuration
• Load-Side Lugs Included
• Interchangeable Thermal-Magnetic Trip Unit
• Internal Common-Trip Mechanism
• Thermal Overload Protection
• Magnetic Short-Circuit Protection
• Multiple AC Interrupting Ratings
• Legacy Electrical System Compatibility
• Existing Electrical Equipment Maintenance
• Form, Fit, and Functional Replacement Focus

Technical Specifications

• Part Number: TKMA836300
  
• Product Description: Industrial Molded Case Circuit Breaker
  
• Series / Type: TKM8
  
• Face Style: Older Style Black Face
  
• Rated Current: 300 Amperes (300A)
  
• Number of Poles: 3
  
• Connection Type: Bolt-On
  
• Line-Side Connection: Bolt-On Configuration
  
• Load-Side Lugs: Included
  
• Trip Unit Type: Interchangeable Thermal-Magnetic
  
• Trip Mechanism: Internal Common Trip
  
• Overload Protection: Thermal
  
• Short-Circuit Protection: Magnetic
  
• Interrupting Rating at 600VAC: 22kA (22,000 Amperes)
  
• Interrupting Rating at 480VAC: 30kA (30,000 Amperes)
  
• Interrupting Rating at 240VAC: 42kA (42,000 Amperes)
  
• HACR Rated: Yes
  
• Height / Length: 15.50 Inches
  
• Width: 8.25 Inches
  
• Depth: 5.50 Inches
  
• Overall Dimensions: 8.25" W × 15.50" L × 5.50" D
  
• Approximate Shipping Weight: 55.00 lbs.
  

Material Compliance and Certifications

• HACR Rating
• Additional Certifications: The supplied specifications do not confirm specific UL listing details, CSA certification, or other third-party certifications or material compliance declarations.

Where It Works Best

• Existing Industrial Electrical Distribution Systems
• Commercial Electrical Distribution Equipment
• Legacy Electrical System Maintenance
• Older Style Black Face Replacement Applications
• TKM8 Series Replacement Applications
• Three-Pole Electrical Installations
• Bolt-On Circuit Breaker Installations
• Load-Side Lug Connection Applications
• Equipment Requiring Interchangeable Trip Units
• Existing Electrical Distribution Assemblies
• Industrial Electrical Repair Projects
• Form, Fit, and Functional Replacement Projects