LLA36400CU31X - Square D 400A 600V 3-Pole PowerPact L Frame Circuit Breaker Electronic Trip

LLA36400CU31X

LLA36400CU31X is a Square D PowerPact L Frame molded case circuit breaker rated for 400 amps and 600 volts AC with a 3-pole configuration and electronic trip unit.This circuit breaker features a 50 kA interrupt rating at 600 VAC, I-Line plug-in mounting style, and an electronic Micrologic 3.3 LI trip unit for precise protection. It supports wire sizes from (2) 2/0 AWG to 500 kcmil aluminum or copper conductors and is designed for use in industrial and commercial power distribution applications. The breaker is UL 489 listed and carries multiple certifications including CSA, NEMA, IEC, and CE marks. Its NEMA AB1 enclosure and 122°F temperature rating ensure reliable operation in demanding environments.

Key Specifications
• Amperage Rating: 400 A
• Voltage Rating: 600 V AC
• Number of Poles: 3
• Interrupt Rating: 50 kA at 600 VAC
• Frame: PowerPact L
• Trip Unit: Electronic Micrologic 3.3 LI
• Mounting Type: I-Line plug-in
• Wire Size Range: (2) 2/0 AWG to 500 kcmil Al/Cu
• Enclosure Type: NEMA AB1
• Temperature Rating: 122°F
• Certifications: UL 489, CSA, NEMA, IEC, CE

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Specifications

• Part Number: LLA36400CU31X
• Manufacturer : Schneider Electric
• Brand : Square D
• Category : Circuit Breaker
• Item Subcategory : Molded Case
• Family : Powerpact
• Type : LLA
• Voltage : 600
• Amperage : 400
• Phase : 3
• Poles : 3
• AIC rating : 100kA@480V
• Connection : I-Line Style Plug-In
• Functions : Long Time and Instantaneous Trip
• Frame Size : L Frame
• Temp Rating : -13–158 °F (-25–70 °C)
• Protection : Solid State

Product Data

• UPC : 060648628397
• GTIN : 03606486283974
• Country of Origin : United States
• Dimensions : 13.4 in (340 mm) x 5.5 in (140 mm) x 4.3 in (110 mm) (Height x Width x Depth)
• Weight : 17
• Standards : UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
• Certification : UL, CSA, NOM
• Wire Size : 2 x AWG 2/0...500 kcmil aluminium/copper