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Square D LAL3640031M - Molded Case Circuit Breaker, 400A 600V 3P

Square D
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Square D LAL3640031M is a molded case circuit breaker designed for providing magnetic-only instantaneous protection against short-circuit faults in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact, robust enclosure measuring 279.4 mm H x 152.4 mm W x 148.34 mm D and weighing 7.49 lb. The breaker is certified to IEC, UL, and CSA standards and offers a 30kA interrupting capacity at 480V AC. Its feed-thru connection and compatibility with wire sizes from AWG 1 to 600 kcmil make it suitable for main feeder and branch circuit protection in industrial panels and switchboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Magnetic-Only (Instantaneous) Protection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 279.4 mm H x 152.4 mm W x 148.34 mm D (11 in x 6 in x 5.84 in)
  • Standards: IEC, UL, CSA Certified
  • Applications: Industrial Power Distribution, Main Feeder & Branch Circuit Protection
  • Phase: 3
  • AIC Rating: 30kA @ 480V AC
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Magnetic Only
  • Functions: I - Instantaneous Trip
  • Wire Size: AWG 1 to 600 kcmil (Aluminum/Copper), AWG 1 to 250 kcmil (Aluminum/Copper)
  • Weight: 7.49 lb
  • Family: LAL Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901358381
  • GTIN: 00785901358381