LA36400 - 400 Amp Circuit Breaker

LA36400 - 400 Amp Circuit Breaker

The LA36400 is a 400-amp, 3-pole circuit breaker for compatible I-Line electrical equipment. It uses thermal-magnetic trip technology and is rated for a 22kA breaking capacity at 600VAC. If you're replacing a breaker already in service, compare several details side by side with the existing unit. Beyond the 400A rating and three-pole configuration, check the I-Line mounting, 3-wire configuration, connection arrangement, and physical size. When those electrical and physical details match the equipment requirements, the LA36400 provides the form, fit, and function needed for compatible existing and legacy installations. Properly selected, installed, and operated within its specified ratings, it's built to last.

Key Features and Benefits

• 400A, 3-pole configuration for equipment requiring these specific electrical characteristics.
• Thermal-magnetic trip technology matches applications designed around this trip arrangement.
• I-Line mounting is a key compatibility point when replacing a breaker in existing equipment.
• I-Line line connection with load-side lugs provides a clearly defined connection arrangement for comparison with the replaced breaker.
• 3-wire configuration with ABC phase connection.
• 2000A magnetic hold current and 4000A magnetic tripping current.
• The AL400LA terminal identifier helps verify the required terminal configuration.
• Well suited to compatible existing and legacy equipment when the required ratings, mounting, connections, dimensions, and function all match.
  

Technical Specifications

• Catalog Number: LA36400
  
• Product Type: Circuit Breaker
  
• Rated Current: 400A
  
• Poles: 3
  
• Voltage Rating: 600VAC
  
• Breaking Capacity: 22kA at 600VAC
  
• Breaking Capacity Code: A
  
• Trip Technology: Thermal-Magnetic
  
• Mounting: I-Line
  
• Wiring Configuration: 3-Wire
  
• Phase Connection: ABC
  
• Magnetic Hold Current: 2000A
  
• Magnetic Tripping Current: 4000A
  
• Line Connection: I-Line Connection
  
• Load Connection: Lugs
  
• Terminal Identifier: AL400LA
  
• Application Rating: 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 LA36400 is UL Listed and CSA certified. Those are the certifications specifically identified in the supplied product information.

Where It Works Best

The LA36400 is a natural fit for compatible existing and legacy I-Line electrical systems that call for a 400A, 3-pole thermal-magnetic circuit breaker with the electrical and physical characteristics listed above.

For replacement work, start with the catalog number, but don't stop there. Check the 400A rating, three poles, 600VAC rating, 22kA breaking capacity, I-Line mounting, and thermal-magnetic trip technology. Then look at the hardware: the breaker is approximately 11"H x 6" W x 5.84"D, uses an I-Line connection on the line side, and has lugs on the load side.