LC36400 - 400 Amp Circuit Breaker

LC36400 - 400 Amp Circuit Breaker

The LC36400 is a 400-amp, 3-pole I-Line molded case circuit breaker with a thermal-magnetic trip unit. It's rated for 600VAC with a 35kA interrupting rating at 600VAC, making those two figures especially important when you're matching a breaker to equipment already in service. The I-Line plug-in configuration must also match the existing installation. For existing and legacy equipment, treat the LC36400 as a specification-driven replacement.

Key Features and Benefits

• 400 amp rating for equipment designed around this current requirement
• 3-pole configuration
• Rated for 600VAC
• Thermal-magnetic protection for overload and short-circuit conditions
• I-Line plug-in design for compatible installations
• Operating handle moves to a central position after a trip, giving a clear visual indication
• Used in a range of compatible industrial power-distribution equipment
  

Technical Specifications

• Catalog Number: LC36400
  
• Product: Molded Case Circuit Breaker
  
• Amperage: 400A
  
• Poles: 3
  
• Voltage Rating: 600VAC
  
• Interrupting Rating: 35kA at 600VAC
  
• Trip Type: Thermal-magnetic
  
• Configuration: I-Line plug-in
  
• Trip Indication: Handle moves to the central position when tripped
  
• Terminal Reference: AL600LI35
  
• Conductor Information: Manufacturer information specifies two wires up to 350 kcmil, aluminum or copper
  

Material Compliance and Certifications

• UL 489
• CSA
• IEC
  

Where It Works Best

The LC36400 suits compatible existing and legacy equipment requiring a 400A, 3-pole I-Line circuit breaker. Applications identified for LC breakers include industrial enclosures, panelboards, switchboards, busway plug-in units, combination starters, and motor control centers.

When you're checking compatibility, start with the electrical requirements: 400A, three poles, 600VAC, and 35kA at 600VAC. The available fault current at the installation must match the breaker's interrupting rating.