Square D LLL36400U31X 600 Volt 400 Amp Molded Case Circuit Breaker
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Manufacturer Square-D / Schneider
Mfg Catalog # LLL36400U31X
Crawford Part # 341237



  • Product Or Component Type: Circuit breaker
  • Range Of Product: PowerPact L
  • Trip Unit Type: Electronic, standard, Micrologic 3.3, LI
  • Interrupt Code: L


  • Protection Technology: Current limiter
  • Line Rated Current: 400 A
  • Number Of Poles: 3P
  • Interrupt Rating: 125 kA 240 V AC || 100 kA 480 V AC || 50 kA 600 V AC
  • Voltage Rating: 600 V AC
  • Continuous Current Rating: 80 %
  • Mounting Mode: Unit mount
  • Electrical Connection: Lugs load || Lugs line
  • Wire Size: AWG 2/0...500 kcmil aluminium/copper)2
  • Terminal Type: AL600LS52K3
  • I-Line Phase Connection: ABC
  • Height: 11.3 in (287.02 mm)
  • Width: 5.5 in (139.70 mm)
  • Depth: 6.61 in (167.89 mm)
  • Tightening Torque: 442.54 lbf.in (50 N.m) 0.11…0.37 in² (70…240 mm²) AWG 2/0...500 kcmil)


  • Product Certifications: CSA 22-2 || CCC || IEC || CE || UL 489 || NMX || NEMA

Ordering And Shipping Details

  • Discount Schedule: DE2
  • GTIN: 00785901710806
  • Returnability: Yes
  • Country Of Origin: US

Offer Sustainability

  • Green Premium Status: Green Premium product
  • EU RoHs Directive: Compliant
  • Mercury Free: Yes
  • Pvc Free: Yes

Contractual Warranty

  • Warranty: 18 months


UPC 78590171080
Product Description PowerPact L-Frame Molded Case Circuit Breaker, LLL36400U31X, are designed to protect electrical systems from damage caused by overloads and short circuits. PowerPact L-frame circuit breakers are available with Micrologic electronic trip units. This breaker is certified to UL, IEC, CE, CSA Standards. Dimensions are 287 mm (H) x 140 mm (W) x 168 mm (D). The PowerPact Advantage. Proven Performance, Industry-leading circuit breaker innovation and protection for heavy-duty commercial and industrial applications. Smart, Integrated metering options provide a cost-effective solution to reduce energy consumption, optimize energy costs, and improve energy availability for your facilities. Flexible, Full range of thermal-magnetic and electronic trip molded case circuit breakers from 15 A to 3000 A, delivering the ratings, configurations, and operators for your unique applications. Simple, Common catalog numbers, standardized ratings, and a full range of field-installable accessories make product selection, installation and maintenance easier than ever. Common Design Features, Mounting holes, door trim, and handle accessories.
MDM Pkg GTiN 00785901710806
Width 5.5 in
Mounting Type Unit Mount
Depth 6.61 in
Height 11.3 in
Country of Origin USA
Family Brand Name Square D by Schneider Electric
Frame L
Certifications NMX,CE,IEC,CCC,CSA 2
Line Rated Current 400 A
Number of Poles 3
Interrupt Rating 125 KA AT 240 V AC-1
Trip Range 400 A
CA Prop65 Warning WARNING: This product can expose you to chemicals including: DINP, which is known to the State of California to cause cancer, and DIDP, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov
Length 6.61 IN
Warranty Length 18 mth
Voltage 600 Volt
Tc Connection AWG 2/0...500 KCMIL

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