Square D H366DS - Fusible Safety Switch, 600A 600V 3-Pole

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Square D H366DS is a heavy-duty fusible safety switch designed for isolating and protecting three-phase industrial power circuits. It provides a 600A current rating and 600V voltage rating with a high 200kA interrupting capacity at 600V for robust short-circuit protection. The switch features a rugged NEMA 5 enclosure measuring 1174.75 mm H x 666.75 mm W x 257.30 mm D and accepts Class R fuses, with terminals for copper or aluminum conductors from AWG 3/0 to 500 Kcmil. This disconnect switch complies with industry standards for safety and isolation in demanding environments, making it suitable for service entrance, feeder, and branch circuit applications in industrial facilities and commercial power distribution.

Key Features & Specifications
  • Type: H-Series, Fusible Safety Disconnect Switch
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Configuration: Single Unit
  • Poles: 3
  • Phase: 3-Phase
  • AIC Rating: 200kA at 600V
  • Fuse Class: Class R
  • Wire Size: AWG 3/0 to 500 Kcmil, Copper/Aluminum
  • NEMA Rating: NEMA 5
  • Switch Style: Fusible
  • Dimensions: 1174.75 mm H x 666.75 mm W x 257.30 mm D (46.25 in x 26.25 in x 10.13 in)
  • Weight: 165.999 lb
  • Standards: Meets applicable industry standards for safety disconnects
  • Applications: Service entrance, main feeder, and branch circuit isolation and protection in industrial and commercial power distribution
  • Family: Series E
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901259435
  • GTIN: 00785901259435