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Square D FCJ34090 - Molded Case 90A 480V 3 Pole

Square D
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Square D FCJ34090 is a 90 Amp, 3 Pole FCJ Series molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It operates at 480V AC with a 65kA interrupting capacity, utilizing a thermal magnetic trip unit that provides LI (Long-Time and Instantaneous) protection functions for 3 phase applications. The breaker features an F Frame construction with a bolt-on connection type, weighing 7 lb. It is designed to meet industry standards for reliable circuit protection in demanding electrical environments. This breaker is suitable for use in panelboards, switchboards, and other commercial or industrial equipment requiring robust short-circuit and overload protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: FCJ Series
  • Type: FCJ
  • Weight: 7 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: F Frame
  • Voltage Rating: 480V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 65kA@480V
  • Phase: 3
  • Current Rating: 90A
  • Amperage: 90 Amps
  • Voltage: 480 Volts AC
  • Frame Type: FCJ
  • Trip Unit: Thermal Magnetic with long time and instantaneous trip
  • Interrupt Rating: 65kA at 480V
  • Mounting Type: I-Line style plug-in
  • Phase: 3 Phase