LA36400MB - Square D 400A 600V 3-Pole Thermal Magnetic Molded Case Circuit Breaker

LA36400MB

LA36400MB is a 3-pole, 400A, 600V thermal magnetic molded case circuit breaker designed for reliable overload and short circuit protection in industrial and commercial power distribution systems. This Square D breaker features a J-Frame construction and is built for unit mount applications with lugs for secure electrical connections. The breaker includes a push-to-trip mechanism for safe manual tripping without exposure to live parts, and its shorter handle design allows for panel doors to close properly. The LA36400MB is suitable for main panel use and offers robust protection for critical circuits. This molded case circuit breaker utilizes thermal (overload) and magnetic (short circuit) sensing elements in each pole for precise and dependable operation. The unit is designed for flexible mounting and termination options, making it adaptable to a variety of panel configurations. The breaker is certified to UL 489, CSA, and IEC standards, ensuring compliance with major safety and performance requirements.

• Part Number: LA36400MB
• Manufacturer: Square D
• Amperage: 400A
• Voltage: 600V AC
• Poles: 3
• Mounting Type: Unit Mount
• Interrupt Rating: 22kA @ 600V AC, 10kA @ 250V DC
• Series/Frame: J-Frame
• Technology: Thermal Magnetic
• Electrical Connection: Lugs
• Standards: UL 489, CSA, IEC
• Push-to-Trip Feature

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Specifications

• Part Number: LA36400MB
• Manufacturer : Square D
• Category : Circuit Breaker
• Item Subcategory : Molded Case
• Family : I-Line
• Type : LA
• Voltage : 600
• Amperage : 400
• Phase : 3
• Poles : 3
• AIC rating : 30kA@480V
• Connection : I-Line Style Plug-In
• Functions : LI - Long-Time and Instantaneous
• Frame Size : L Frame
• Protection : Thermal Magnetic

Product Data

• Weight : 20