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Square D KC34250 - Molded Case Circuit Breaker 250A 480V 3P

Square D
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Square D KC34250 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 250A current rating and a 480V AC voltage rating, housed within a compact K-Frame design with an I-Line style plug-in connection for simplified installation. The breaker utilizes a thermal-magnetic trip unit providing both long-time and instantaneous (LI) protection functions and is rated for an interrupting capacity of 65kA at 480V AC. Constructed for durability, it operates within a temperature range of -25 to 70 °C (-13 to 158 °F) and complies with relevant industry standards for safety and performance in commercial and industrial panelboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, I-Line Plug-In
  • Voltage Rating: 480V AC
  • Current Rating: 250A
  • Frame Size: K Frame
  • Poles: 3
  • Phase: 3
  • AIC Rating: 65kA @ 480V AC
  • Protection Functions: LI (Long-Time and Instantaneous Trip)
  • Connection: I-Line Style Plug-In
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Weight: 13 lb
  • Family: I-Line
  • Type Designation: KC


Product Identification
  • UPC: 786679921548
  • GTIN: 00786679921548