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Square D FC34045 - Molded Case Circuit Breaker, 45A 480V 3P

Square D
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Square D FC34045 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 480V AC voltage rating and a 45A current rating, housed within a compact F-frame construction that facilitates straightforward I-Line style plug-in installation. This unit complies with industry standards for thermal-magnetic protection, integrating both long-time and instantaneous trip functions to safeguard against overloads and short circuits. Its typical applications include protecting feeders and branch circuits in commercial and industrial panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, I-Line Plug-In
  • Voltage Rating: 480V AC
  • Current Rating: 45A
  • Frame Size: F Frame
  • Poles: 3
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: I-Line Style Plug-In
  • Wire Size: 14 to 1 AWG AL/CU
  • Functions: LI (Long-Time and Instantaneous)
  • Protection: Thermal Magnetic
  • Family: I-Line
  • Item Subcategory: Molded Case
  • Weight: 6 lb


Product Identification
  • UPC: 078590107586