Square D LJA36400U33X Molded Case Circuit Breaker – 400A – 3-Pole / 3-Phase – 600V – 65kA @ 480V – I-Line Style Plug-In – PowerPact LJA Series

The Square D LJA36400U33X is a 400A, 3-pole, 3-phase molded case circuit breaker from the Square D PowerPact Type LJA Series. It features solid-state electronic protection with a MicroLogic Standard 3.3 trip unit and Long-Time, Short-Time, and Instantaneous (LSI) trip functions.

The LJA36400U33X is rated for 600V and provides a 65kA interrupting rating at 480V with standard interrupting capacity. It uses an I-Line style plug-in connection, features a non-interchangeable trip unit, and is identified as suitable for 2-pole applications. The breaker is supplied as a complete breaker.

Specifications:

• Manufacturer: Square D / Schneider Electric
• Product Type: Molded Case Circuit Breaker
• Product Family: PowerPact
• Series: LJA
• Type: LJA
• Catalog No.: LJA36400U33X
• Current Rating: 400A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 600V
• Interrupting Rating: 65kA @ 480V
• Interrupting Capacity: Standard
• Protection Type: Solid-State Electronic
• Trip Unit: MicroLogic Standard 3.3
• Trip Type: Non-Interchangeable
• Trip Functions: Long-Time, Short-Time, and Instantaneous (LSI)
• Mounting / Connection: I-Line Style Plug-In
• Breaker Configuration: Complete Breaker
• 2-Pole Application: Suitable for 2-Pole Applications
• Application: Electrical Distribution and Overcurrent Protection
• Brand: Square D / Schneider Electric

Part Numbers & Identification:

• Manufacturer Part Number (MPN): LJA36400U33X
• Catalog Number: LJA36400U33X
• Model: LJA36400U33X
• Product Family: Square D PowerPact Molded Case Circuit Breakers
• Series: LJA
• Type: LJA
• Brand: Square D
• Manufacturer: Schneider Electric
• Product Type: Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 400A
• Trip Unit: MicroLogic Standard 3.3
• Trip Configuration: Long-Time, Short-Time, and Instantaneous (LSI)
• Trip Type: Non-Interchangeable
• UPC:785901807957

Compatibility:

Designed for use with compatible Square D PowerPact LJA Series electrical distribution equipment that accepts I-Line style plug-in molded case circuit breakers. The LJA36400U33X provides 400A, 3-pole solid-state electronic protection for compatible 600V electrical distribution applications.

The breaker features a MicroLogic Standard 3.3 non-interchangeable trip unit, LSI trip functions, and an I-Line style plug-in connection. It is also identified as suitable for 2-pole applications.

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

Certifications:

• UL Listed
• PowerPact LJA Series
• 400A Rated
• 3-Pole / 3-Phase
• 600V Rated
• 65kA @ 480V Interrupting Rating
• Standard Interrupting Capacity
• Solid-State Electronic Protection
• MicroLogic Standard 3.3 Trip Unit
• Non-Interchangeable Trip
• Long-Time, Short-Time, and Instantaneous (LSI) Trip Functions
• I-Line Style Plug-In
• Suitable for 2-Pole Applications
• Complete Breaker

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