TKMA836300 - 300Amp Circuit Breaker

TKMA836300 - 300Amp Circuit Breaker

The TKMA836300 is a 300-amp, 3-pole industrial molded-case circuit breaker from the TKM8 series, designed for your compatible commercial and industrial electrical distribution systems. With a bolt-on connection, an interchangeable thermal-magnetic trip unit, and an internal common-trip mechanism, this breaker is especially suited to maintenance and replacement applications for existing electrical equipment. It includes load-side lugs for compatible cable connections, while its bolt-on design must match the original equipment's line-side connection arrangement.

Key Features and Benefits

• 300-Amp Current Rating
• Three-Pole Circuit Breaker Configuration
• 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
• Existing Electrical Equipment Compatibility
• Legacy Electrical System Maintenance
• Form, Fit, and Functional Replacement Applications

Technical Specifications

• Part Number: TKMA836300
  
• Product Type: Industrial Molded Case Circuit Breaker
  
• Series / Type: TKM8
  
• Rated Current: 300 Amperes (300A)
  
• Number of Poles: 3
  
• Connection Configuration: Bolt-On
  
• Load-Side Lugs: Included
  
• Line-Side Connection: Bolt-On Configuration
  
• 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

The TKMA836300 includes specified electrical protection features and ratings relevant to industrial and commercial applications. Confirm suitability for a particular installation against the original equipment specifications, applicable electrical codes, and verified manufacturer documentation.

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

Where It Works Best

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