Square D LJA36400U44X Molded Case Circuit Breaker – 400A – 3-Pole / 3-Phase – 600V – 65kA @ 480V – I-Line Style Plug-In – PowerPact LJA Series

The Square D LJA36400U44X is a 400A, 3-pole, 3-phase molded case circuit breaker from the Square D / Schneider Electric PowerPact LJA Series. It is designed for compatible electrical distribution applications and provides a 65kA interrupting rating at 480V.

The breaker is rated for 600V and features an I-Line style plug-in connection. It is UL Listed, has standard interrupting capacity, and is identified as suitable for 2-pole applications. The breaker is supplied with a non-interchangeable MicroLogic Ammeter 6.3A trip.

Specifications:

• Manufacturer: Square D / Schneider Electric
• Product Type: Molded Case Circuit Breaker
• Product Family: PowerPact
• Series: LJA
• Type: LJA
• Catalog No.: LJA36400U44X
• Current Rating: 400A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 600V
• Interrupting Rating: 65kA @ 480V
• Interrupting Capacity: Standard
• Trip Unit: MicroLogic Ammeter 6.3A
• Trip Type: Non-Interchangeable
• Mounting / Connection: I-Line Style Plug-In
• 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): LJA36400U44X
• Catalog Number: LJA36400U44X
• Model: LJA36400U44X
• 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 Configuration: Non-Interchangeable MicroLogic Ammeter 6.3A Trip
• UPC:785901805212

Compatibility:

Designed for use with compatible Square D / Schneider Electric PowerPact LJA Series electrical distribution equipment that accepts I-Line style plug-in molded case circuit breakers. The LJA36400U44X provides 400A, 3-pole protection for compatible 600V electrical distribution applications.

The breaker includes a non-interchangeable MicroLogic Ammeter 6.3A trip and is identified as suitable for 2-pole applications. Always verify the specific panelboard or electrical equipment model, approved breaker type, system voltage, available fault current, pole configuration, trip-unit requirements, and I-Line mounting arrangement before installation.

Certifications:

• UL Listed
• PowerPact LJA Series
• 400A Rated
• 3-Pole / 3-Phase
• 600V Rated
• 65kA @ 480V Interrupting Rating
• Standard Interrupting Capacity
• Non-Interchangeable MicroLogic Ammeter 6.3A Trip
• I-Line Style Plug-In
• Suitable for 2-Pole Applications

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