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Square D KCB34125 - Molded Case Circuit Breaker 125A 480V 3P

Square D
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Square D KCB34125 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 125A current rating and a 480V AC voltage rating, housed within a compact K-Frame design with a plug-in I-Line connection for simplified installation. This thermal-magnetic breaker offers combined long-time and instantaneous (LI) trip functions and complies with industry standards for safety and performance, including a 65kA interrupting capacity at 480V. Its robust construction makes it suitable for protecting feeders and branch circuits 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: 125A
  • Frame Size: K Frame
  • Poles: 3
  • Phase: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC Rating: 65kA @ 480V
  • Functions: LI (Long-Time and Instantaneous)
  • Weight: 13 lb