TKMA836300WL **Older Style** - 300Amp Circuit Breaker

TKMA836300WL **Older Style** - 300Amp Circuit Breaker

The TKMA836300WL is a 300-amp, 3-pole industrial molded case circuit breaker from the TKM8 series, featuring an older-style black face and a cable-in/cable-out (lug-lug) connection configuration. Designed for your compatible industrial and commercial electrical distribution equipment, this breaker includes line-side and load-side lugs, an interchangeable thermal-magnetic trip unit, and an internal common-trip mechanism. For maintenance professionals working with legacy electrical systems, its electrical ratings, physical configuration, and distinctive black-face design provide key details for identifying a suitable form, fit, and functional replacement.

Key Features and Benefits

• 300-Amp Current Rating
• Three-Pole Circuit Breaker Configuration
• Older-Style Black Face Design
• TKM8 Series Construction
• Industrial Molded Case Design
• Cable-In/Cable-Out Connection Configuration
• Line-Side Lugs Included
• 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 Equipment Compatibility
• Form, Fit, and Functional Replacement Applications

Technical Specifications

• Part Number: TKMA836300WL
  
• Product Type: Industrial Molded Case Circuit Breaker
  
• Series / Type: TKM8
  
• Face Style: Older Style Black Face
  
• Rated Current: 300 Amperes (300A)
  
• Number of Poles: 3
  
• Connection Configuration: Cable-In/Cable-Out (Lug-Lug)
  
• Line-Side Lugs: Included
  
• 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

The TKMA836300WL includes specified electrical protection features and an HACR rating relevant to compatible industrial and commercial applications.

• 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
• TKM8 Series Replacement Applications
• Older-Style Black Face Breaker Installations
• Three-Pole Electrical Installations
• Lug-Lug Connection Installations
• Line-Side and Load-Side Cable Terminations
• Existing Electrical Distribution Assemblies
• Equipment Requiring Interchangeable Trip Units
• Industrial Electrical Repair Projects
• Electrical Equipment Restoration Projects
• Form, Fit, and Functional Replacement Projects