LA36300 - 300 Amp Circuit Breaker

LA36300 - 300 Amp Circuit Breaker

The LA36300 is a 300-amp, 3-pole circuit breaker for your compatible I-Line electrical systems, with mounting, ratings, connections, and physical dimensions that match your equipment requirements. For legacy equipment in particular, don't rely on the 300A rating alone—confirm the pole configuration, voltage, required interrupting capacity, I-Line mounting, wiring arrangement, terminals, and dimensions. When the specifications match the application, the LA36300 provides the form, fit, and function needed to keep compatible equipment in service. Properly selected, professionally installed, and operated within its specified ratings, it's built to last.

Key Features and Benefits

• 300-amp rated current for equipment requiring this specific current rating.
• 3-pole configuration for compatible three-pole applications.
• Thermal-magnetic trip technology matches systems designed around this breaker configuration.
• I-Line mounting for compatible I-Line electrical equipment.
• 3-wire configuration gives maintenance personnel another specification to verify during replacement work.
• I-Line connection on the line side and lugs on the load side clearly define the connection arrangement.
• AL400LA terminal identifier provides another useful reference when confirming compatibility.
• HACR rated where the application requires this breaker designation.
• The LA36300 specifies a 1500A magnetic hold current and a 3000A magnetic tripping current.
  

Technical Specifications

• Catalog Number: LA36300
  
• Product or Component Type: Circuit Breaker
  
• Rated Current: 300A
  
• Number of Poles: 3
  
• Operating Voltage: 600VAC
  
• Interrupting/Breaking Capacity: 22kA at 600VAC
  
• Breaking Capacity Code: A
  
• Trip Unit Technology: Thermal-Magnetic
  
• Mounting Mode: I-Line
  
• Wiring Configuration: 3-Wire
  
• Magnetic Hold Current: 1500A
  
• Magnetic Tripping Current: 3000A
  
• Line-Side Connection: I-Line Connection
  
• Load-Side Connection: Lugs
  
• Terminal Identifier: AL400LA
  
• Circuit Breaker Application: HACR Rated
  
• Height: 11 in. (279.4 mm)
  
• Width: 6 in. (152.4 mm)
  
• Depth: 5.84 in. (148.34 mm)
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The LA36300 is specified as UL Listed and CSA certified. Still consider these certifications alongside the requirements of the equipment and the electrical installation where the breaker will be used.

Where It Works Best

The LA36300 is best considered for compatible existing and legacy I-Line electrical systems requiring a 300-amp, 3-pole thermal-magnetic circuit breaker with the stated ratings and connection arrangement.

For replacement work, put the specifications side by side. Confirm the 300A rating, three poles, 600VAC operating voltage, required 22kA interrupting capacity, thermal-magnetic trip technology, I-Line mounting, and 3-wire configuration. Then look at the physical side of the installation: the breaker measures 11"H x 6" W x 5.84"D and uses an I-Line line-side connection with load-side lugs identified as AL400LA.