LA3300 - 300Amp Circuit Breaker

LA3300 - 300Amp Circuit Breaker

The LA3300 is a 300-amp, 3-pole Type LA molded-case circuit breaker for your compatible electrical equipment that requires this specific combination of ratings, size, and configuration. It uses a thermal-magnetic design with an interchangeable trip unit, is rated for 40°C, and includes load-side terminals. When those details agree with the equipment requirements, the LA3300 is a good fit for maintaining compatible existing and legacy electrical systems. Properly selected, professionally installed, and kept within its stated ratings, it's built to last.

Key Features and Benefits

• 300A, 3-pole configuration for compatible electrical applications
• Type LA molded case circuit breaker
• Thermal-magnetic operation with an interchangeable trip unit
• 40°C rated
• Load-side terminals are included
• Useful for maintaining compatible existing and legacy equipment where the LA3300 specifications match
• Clearly defined dimensions and electrical ratings make it easier to compare against an existing breaker
  

Technical Specifications

• Part Number: LA3300
  
• Product Type: Molded Case Circuit Breaker
  
• Type: LA
  
• Amperage: 300A
  
• Number of Poles: 3
  
• Trip Type: Thermal Magnetic
  
• Trip Unit: Interchangeable
  
• Temperature Rating: 40°C
  
• A.I.C. at 600VAC: 22kA
  
• A.I.C. at 480VAC: 30kA
  
• A.I.C. at 240VAC: 42kA
  
• Terminals: Load-side terminals included
  
• Height: 10.75 in.
  
• Width: 8.25 in.
  
• Depth: 4.00 in.
  
• Overall Dimensions: 8.25" W x 10.75" L x 4.00" D
  
• Approximate Ship Weight: 25.00 lbs.
  

Material Compliance and Certifications

No specific material-compliance information or certification details were provided for the LA3300, so do not assume certifications such as UL, RoHS, or REACH.

Where It Works Best

The LA3300 makes the most sense in existing and legacy electrical equipment that specifically requires a 300-amp, 3-pole Type LA thermal magnetic circuit breaker with an interchangeable trip unit.

For replacement work, put the old breaker and the LA3300 specifications side by side. Confirm the part number or Type LA designation, amperage, pole count, system voltage, required A.I.C., dimensions, 40°C rating, trip-unit arrangement, and connection requirements. Load-side terminals are included, but other lug, terminal, and mounting details weren't provided and should be checked separately.