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Square D FDA240403 - Molded Case Circuit Breaker 40A 2-Pole

Square D
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Square D FDA240403 is a 2-pole molded case circuit breaker from the Powerpact family, designed for thermal magnetic protection against overloads and short circuits in commercial and industrial power distribution systems. It is rated for 40A at 480V AC with an interrupting capacity of 18kA at 480V, providing reliable fault interruption in single-phase applications. The breaker features I-Line style plug-in connection for secure mounting in compatible panelboards and switchboards, with a compact design weighing 4 lb. It utilizes a LI (Long-Time and Instantaneous) trip function to ensure precise coordination and protection. This unit complies with UL 489 standards, making it suitable for use in distribution equipment requiring robust circuit protection.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Molded Case
  • Family: Powerpact
  • Type: FDA
  • Weight: 4 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 480V
  • Poles: 2
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 18kA@480V
  • Phase: 1
  • Current Rating: 40A
  • Series/Frame: PowerPact B-Frame
  • Rated Voltage: 240V AC
  • Interrupt Rating: 18kA at 480Y/277V AC
  • Mounting Type: I-Line
  • Certifications: UL 489