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Square D LA26400AC - 400A Molded Case Circuit Breaker (600V AC, 30kA AIC)

Square D
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Square D LA26400AC is a molded case circuit breaker designed for providing reliable overcurrent protection in industrial power distribution systems. It features a 400A current rating and a 600V AC voltage rating, housed within a compact 400A/LA frame with dimensions of 279.4 mm H x 152.4 mm W x 148.34 mm D and a weight of 16.03 lb. This two-pole, plug-in unit utilizes a thermal-magnetic trip mechanism for long-time and instantaneous (LI) protection, is CSA Certified and UL Listed, and is engineered for integration into I-Line panelboards with a 30kA interrupting capacity at 480V AC.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Frame Size: 400A/LA
  • Poles: 2
  • AIC Rating: 30kA @ 480V AC
  • Phase: 1
  • Connection: Plug-In Panelboard
  • Terminal Connection: Lug
  • MCM Size: Min. 1 AWG (Al), Max. 250 MCM (Al) / 600 MCM (Cu)
  • Functions: LI (Long-Time and Instantaneous)
  • Dimensions: 11 in (279.4 mm) H x 6 in (152.4 mm) W x 5.84 in (148.34 mm) D
  • Weight: 16.03 lb
  • Standards & Certification: CSA Certified, UL Listed
  • Panel Type: I-Line Panelboards
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901009795
  • GTIN: 00785901009795