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Square D LAL36400MB - Molded Case Circuit Breaker 400A 600V 3P

Square D
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Square D LAL36400MB is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact L Frame measuring 279.4 mm H x 152.4 mm W x 148.34 mm D and weighing 16.162 lb. The breaker is constructed with a thermal-magnetic trip unit for long-time and instantaneous (LI) protection and utilizes a three-pole, bolt-on connection with lug terminals for secure installation. It complies with CSA, IEC, and UL standards, ensuring suitability for a wide range of commercial and industrial applications requiring a 30kA interrupting capacity at 480V AC.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, L Frame
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 11 in (279.4 mm) H x 6 in (152.4 mm) W x 5.84 in (148.34 mm) D
  • Standards: CSA, IEC, UL Listed
  • Applications: Industrial Power Distribution, Panelboards, Switchgear
  • Phase: 3
  • AIC Rating: 30kA @ 480V AC
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: L Frame
  • Terminal Connection: Lug
  • Wire Size: Accepts AWG 1, 600 kcmil Aluminium/Copper and AWG 1, 250 kcmil Aluminium/Copper
  • Certification: CSA, IEC, UL Listed
  • Weight: 16.162 lb


Product Identification
  • UPC: 785901005513
  • GTIN: 00785901005513