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Square D LA36400 - Molded Case Circuit Breaker 400A 600V 3P

Square D
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Square D LA36400 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact 400A/LA frame measuring 279.4 mm H x 152.4 mm W x 148.34 mm D and weighing 18.001 lb. This thermal magnetic breaker is CSA and UL Listed, offering LI (Long-time and Instantaneous) trip functions and a 30kA interrupting capacity at 480V for robust fault protection. Its plug-in design with lug terminals is engineered for integration into I-Line panelboards, supporting wire sizes from 1/0 AWG to 600 MCM for versatile industrial and commercial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Plug-In Connection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Frame Size: 400A/LA
  • Poles: 3
  • AIC Rating: 30kA @ 480V
  • Phase: 3
  • Connection: Plug-In Panelboard, Lug Terminal
  • Functions: LI - Long-Time and Instantaneous Trip
  • Protection: Thermal Magnetic
  • Panel Type: I-Line Panelboards
  • Phase Connection: ABC
  • Breaker Type: Standard
  • Standards & Certification: CSA, UL Listed
  • MCM Size: Min. 1/0 AWG, Max. 250 MCM, 600 MCM
  • Dimensions: 11 in (279.4 mm) H x 6 in (152.4 mm) W x 5.84 in (148.34 mm) D
  • Weight: 18.001 lb
  • Family: I-Line
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901426325
  • GTIN: 00785901426325