Square D LDL36400U31X Molded Case Circuit Breaker – 400A – 3-Pole / 3-Phase – 600V – 25kA @ 240V / 18kA @ 480V / 14kA @ 600V – Feed-Thru – PowerPact LDL Series

The Square D LDL36400U31X is a 400A, 3-pole, 3-phase molded case circuit breaker from the Square D PowerPact Type LDL Series. It features a solid-state electronic MicroLogic Standard 3.3 trip unit with Long-Time and Instantaneous (LI) trip functions.

The LDL36400U31X is rated for 600V and provides interrupting ratings of 25kA at 240V, 18kA at 480V, and 14kA at 600V with standard interrupting capacity. It features a feed-thru configuration, non-interchangeable trip, and line- and load-side lug terminals. The breaker can also be used for 2-pole applications.

Specifications:

• Manufacturer: Square D / Schneider Electric
• Product Type: Molded Case Circuit Breaker
• Product Family: PowerPact
• Series: LDL
• Type: LDL
• Catalog No.: LDL36400U31X
• Current Rating: 400A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 600V
• Interrupting Rating: 25kA @ 240V; 18kA @ 480V; 14kA @ 600V
• Interrupting Capacity: Standard
• Protection Type: Solid-State Electronic
• Trip Unit: MicroLogic Standard 3.3
• Trip Functions: Long-Time and Instantaneous (LI)
• Trip Type: Non-Interchangeable
• Mounting / Configuration: Feed-Thru
• Terminal Type: Line-Side and Load-Side Lug Terminals
• 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): LDL36400U31X
• Catalog Number: LDL36400U31X
• Model: LDL36400U31X
• Product Family: Square D PowerPact Molded Case Circuit Breakers
• Series: LDL
• Type: LDL
• 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: Non-Interchangeable LI
• UPC:785901083306

Compatibility:

Designed for use with compatible Square D PowerPact LDL Series electrical distribution equipment that accepts LDL Series molded case circuit breakers. The LDL36400U31X 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, LI trip functions, feed-thru configuration, and line- and load-side lug terminals. It can also be used for 2-pole applications as specified.

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

Certifications:

• UL Listed
• PowerPact LDL Series
• 400A Rated
• 3-Pole / 3-Phase
• 600V Rated
• 25kA @ 240V Interrupting Rating
• 18kA @ 480V Interrupting Rating
• 14kA @ 600V Interrupting Rating
• Standard Interrupting Capacity
• Solid-State Electronic Protection
• MicroLogic Standard 3.3 Trip Unit
• Long-Time and Instantaneous (LI) Trip Functions
• Non-Interchangeable Trip
• Feed-Thru Configuration
• Line- and Load-Side Lug Terminals
• Suitable for 2-Pole Applications

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