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Square D LA26400 - Molded Case Circuit Breaker 400A 600V

Square D
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Square D LA26400 is a 2-pole molded case circuit breaker from the I-Line family, designed to provide overload and short-circuit protection in commercial and industrial power distribution systems. Rated for 400A at 600VAC, this L Frame breaker delivers a 30kA interrupting capacity at 480VAC and utilizes a thermal magnetic trip unit with LI (Long-Time and Instantaneous) functions. The unit weighs 20 lb and features an I-Line style plug-in connection for direct installation into compatible panelboards and switchboards. It is UL 489, CSA, and IEC certified, ensuring compliance with major industry standards. Typical applications include branch circuit protection in manufacturing facilities, data centers, and commercial buildings requiring reliable, high-amperage overcurrent protection.

Key Features & Specifications
  • Type: Molded Case
  • Family: I-Line
  • Frame Size: L Frame
  • Poles: 2
  • Current Rating: 400A
  • Voltage Rating: 600VAC, 250VDC
  • Interrupt Rating: 30kA at 480V
  • Protection: Thermal Magnetic (Long-Time and Instantaneous)
  • Connection: I-Line Style Plug-In
  • Phase: 1
  • Weight: 20 lb
  • Certifications: UL 489, CSA, IEC