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Eaton HFD4050 - Molded Case Circuit Breaker 50A 600VAC

Cutler Hammer
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Eaton HFD4050 is a molded case circuit breaker from the Series C family, designed for LI (Long-Time and Instantaneous) protection in industrial power distribution systems. This four-pole unit is rated for 50A at 600VAC and 250VDC, with a 65kA interrupting capacity at 480VAC and 100kAIC at 240VAC, operating at 50/60 Hz. The F Frame breaker measures 3.38 in x 6 in x 5.5 in (Length/Depth x Height x Width), weighs 4.5 lb, and features a bolt-on connection with a fixed thermal-magnetic trip unit and patented high-speed blow-open contact design for superior arc interruption. It is UL Listed and certified for panel or surface mounting applications. Typical applications include industrial motor control centers, distribution panels, and switchboards requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: HFD
  • Family: Series C
  • Frame Size: F Frame
  • Current Rating: 50A
  • Voltage Rating: 600VAC / 250VDC
  • Poles: 4
  • Phase: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Interrupt Rating: 100 kAIC @ 240VAC, 65 kAIC @ 480VAC
  • Frequency: 50/60 Hz
  • Connection: Bolt-On
  • Mounting Type: Panel / Surface
  • Dimensions: 3.38 in x 6 in x 5.5 in (Length/Depth x Height x Width)
  • Weight: 4.5 lb
  • Certification: UL Listed
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 786679253854
  • GTIN: 00786679253854