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Square D KC34150 - Molded Case Circuit Breaker, 150A 480V 3P

Square D
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Square D KC34150 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 150A current rating and a 480V AC voltage rating, housed within a compact K-frame design for efficient panel space utilization. The breaker utilizes a thermal-magnetic trip mechanism with long-time and instantaneous (LI) functions and is constructed for plug-in connection via the I-Line style busway. It complies with industry standards for safety and performance, operating reliably across a temperature range of -25 to 70 °C (-13 to 158 °F). This unit is typically applied in industrial facilities, data centers, and commercial buildings for protecting feeders and branch circuits, offering an interrupting capacity of 65kA at 480V AC.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, I-Line Style Plug-In Connection
  • Voltage Rating: 480V AC
  • Current Rating: 150A
  • Frame Size: K Frame
  • Poles: 3
  • Phase: 3
  • AIC Rating: 65kA @ 480V AC
  • Protection Functions: LI (Long-Time and Instantaneous Trip)
  • Connection: Plug-In (I-Line Style)
  • Operating Temperature Range: -25°C to 70°C (-13°F to 158°F)
  • Weight: 13 lb
  • Family: I-Line
  • Breaker Type: KC


Product Identification
  • UPC: 078590104351