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SDGT300-20 - Molded Case Circuit Breaker 300A 600V

United Fuses
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The SDGT300-20 is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. It is rated for 600V AC and 300A, with a compact frame size and robust construction suitable for panelboard or switchboard mounting. This device complies with UL 489 and CSA standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, feeder circuits, and main disconnect panels in manufacturing and processing facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Dimensions: 5.19 lb weight
  • Standards: UL 489, CSA
  • Applications: Industrial power distribution, motor control centers, feeder circuits
  • Breaker Type: Molded case
  • Poles: 3
  • Frame Size: 300A frame
  • Trip Type: Thermal-magnetic
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase: 3-phase
  • Installation Type: Panelboard or switchboard
  • Enclosure: Open type
  • Certification: UL, CSA


Product Identification
  • UPC: 78590196703
  • GTIN: 00785901967033