Square D LJA36400U31X Molded Case Circuit Breaker – 400A – 3-Pole – 600V AC – 65kA @ 480V – I-Line Plug-In – PowerPact LJA Series

The Square D LJA36400U31X is a 400A, 3-pole, 3-phase molded case circuit breaker from the PowerPact LJA Series. It is rated for 600V AC and provides a 65kA interrupting rating at 480V.

The breaker features an I-Line style plug-in connection and is equipped with a solid-state electronic MicroLogic Standard 3.3 trip unit. It provides long-time and instantaneous (LI) trip functions and uses a non-interchangeable trip configuration.

The LJA36400U31X is a complete breaker and is specified as suitable for 2-pole applications where the applicable installation requirements are met. It is UL Listed and has a standard interrupting capacity.

Specifications:

• Manufacturer: Schneider Electric / Square D
• Product Type: Molded Case Circuit Breaker
• Catalog No.: LJA36400U31X
• Product Family: PowerPact
• Series: LJA
• Current Rating: 400A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 600V AC
• Interrupting Rating: 65kA @ 480V
• Interrupting Capacity: Standard
• Mounting / Connection Type: I-Line Style Plug-In
• Trip Type: Non-Interchangeable
• Trip Unit: MicroLogic Standard 3.3
• Trip Technology: Solid-State Electronic
• Trip Functions: Long-Time and Instantaneous (LI)
• Breaker Configuration: Complete Breaker
• 2-Pole Application: Suitable for 2-pole applications as specified
• Application: Electrical Distribution and Overcurrent Protection
• Brand: Square D
• Authenticity: Genuine Square D / Schneider Electric Product

Part Numbers & Identification:

• Manufacturer Part Number (MPN): LJA36400U31X
• Catalog Number: LJA36400U31X
• Product Family: PowerPact
• Series: LJA
• Brand: Square D
• Manufacturer: Schneider Electric
• Product Type: Molded Case Circuit Breaker
• Model: LJA36400U31X
• Configuration: 3-Pole, 400A
• Trip Unit: MicroLogic Standard 3.3
• Trip Configuration: Non-Interchangeable, LI
• Connection: I-Line Style Plug-In
• upc:785901648550

Compatibility:

Designed for use with compatible Square D / Schneider Electric PowerPact LJA Series I-Line electrical distribution equipment that accepts the specified molded case circuit breaker configuration. The LJA36400U31X provides 400A, 3-pole protection for compatible 600V AC, 3-phase applications.

The breaker uses an I-Line style plug-in connection and includes a MicroLogic Standard 3.3 solid-state electronic trip unit with long-time and instantaneous trip functions. It may be used for 2-pole applications where specifically permitted by the applicable equipment and installation requirements.

Always verify the specific panelboard or electrical equipment model, approved breaker configuration, system voltage, available fault current, pole requirements, I-Line compatibility, trip-unit requirements, and installation instructions before installation.

Certifications:

• UL Listed
• 400A Rated
• 3-Pole / 3-Phase
• 600V AC Rated
• 65kA Interrupting Rating @ 480V
• Standard Interrupting Capacity
• I-Line Style Plug-In
• MicroLogic Standard 3.3 Trip Unit
• Solid-State Electronic Trip
• Non-Interchangeable Trip
• LI Long-Time and Instantaneous Trip Functions
• Complete Breaker
• PowerPact LJA Series
• Genuine Square D / Schneider Electric Product

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