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Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 2
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 1
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 3
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 4
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 5
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 6
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 7
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 2
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 1
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 3
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 4
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 5
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 6
Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC - product image 7

Disclaimer: Actual product colors may vary slightly from the images shown due to different monitor settings and lighting conditions during photo shoots.

Square D

Square D LJL36400U31X 400A 600V 3-Pole PowerPacT L Circuit Breaker 25kAIC

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SKU: 650$ 7722
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$3,400.00
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Overview

The Square D LJL36400U31X is a 400 A, three-pole PowerPacT L molded-case circuit breaker for unit-mount applications. It is rated 600 VAC with a 25 kA interrupting rating at 600 V and uses a MicroLogic 3.3 electronic trip unit with an 80% rating configuration.

Key Features

  • Electronic protection: The MicroLogic 3.3 trip unit provides electronic overcurrent protection for the exact LJL36400U31X configuration.
  • Installation: Unit-mount construction with factory lugs accepts 2 AWG through 600 kcmil conductors.
  • Compatibility: Use only in equipment engineered and listed for the PowerPacT L frame and exact LJL36400U31X breaker.
  • Performance: 400 A, three-pole operation at 600 VAC with a 25 kA interrupting rating at 600 V.

Specifications

  • Manufacturer / model: Square D LJL36400U31X
  • Series / frame: PowerPacT L / L Frame
  • Current / poles / phase: 400 A, 3 poles, 3 phase
  • Voltage / interrupting rating: 600 VAC, 25 kA at 600 V
  • Protection / trip unit: Molded-case breaker; MicroLogic 3.3 electronic trip; 80% rated
  • Mounting / terminals: Unit mount; box lugs
  • Conductor range: 2 AWG–600 kcmil
  • Operating temperature: -13°F to 158°F (-25°C to 70°C)
  • Certifications / standards: UL 489; CSA; CE; Schneider also lists NEMA, NMX, VDE, BS, CCC, and IEC conformity

Common Applications

  • 400 A industrial and commercial feeder protection in PowerPacT L-compatible distribution equipment.
  • Three-phase systems up to 600 VAC requiring a 25 kA interrupting rating at 600 V.
  • OEM and replacement applications specifying the exact LJL36400U31X MicroLogic 3.3 configuration.

Free shipping on eligible orders over $90. Our shipping cutoff is 3 PM, Monday–Friday. Available shipping services and delivery estimates are shown at checkout.

See our shipping policy for eligibility and exclusions. Orders are delivered; our warehouse is closed to the public.

Your product is covered by a 12 month Warranty or more if you opted for the extended warranty. Make sure you register your product.

Product Specifications

  • Brand Square D
  • Series PowerPacT L
  • Model LJL36400U31X
  • Breaker Type Molded Breaker and Electronic Trip Unit
  • Frame Type L Frame
  • Phase 3 Phase
  • Pole 3 Pole
  • Voltage 600V
  • Amp 400
  • AIC Interrupting Rating 25kA
  • Terminal Connection Box Lugs
  • Minimum Wire Gauge 2 AWG
  • Maximum Wire Gauge 600 kcmil
  • Mounting Type Unit Mount
  • Temperature Rating -13°F to 158°F (-25°C to 70°C)
  • Certifications UL 489, CSA Certified, and CE Marked