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Square D FCB34100 - 100A 3-Pole MCCB 480V

United Fuses
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Square D FCB34100 is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. This 100 Amp unit operates at 480 Volts AC and features a thermal magnetic trip mechanism for reliable long-time and instantaneous fault clearing. The breaker weighs 5.19 lb and utilizes a bolt-on I-Line mounting configuration for secure panel installation. It is certified to UL 489 and ANSI C37 standards, ensuring compliance with rigorous safety and performance requirements. Typical applications include protecting feeders, motors, and branch circuits in commercial and industrial electrical panels.

Key Features & Specifications
  • Manufacturer: Square D / Schneider Electric
  • Type: FCB Molded Case Circuit Breaker
  • Amperage: 100 Amps
  • Voltage: 480 Volts
  • Poles: 3 Pole
  • Mounting Type: Bolt-On I-Line
  • Interrupt Rating: 65kA at 480V
  • Trip Unit: Thermal Magnetic
  • Series/Frame: I-Line
  • Certifications: UL 489, ANSI C37
  • Weight: 5.19 lb