Square D CH366 - Fusible Safety Switch 600A 600V (200kA AIC)
Square D CH366 - Fusible Safety Switch 600A 600V (200kA AIC)
Square D CH366 - Fusible Safety Switch 600A 600V (200kA AIC)
Square D CH366 - Fusible Safety Switch 600A 600V (200kA AIC)

Square D CH366 - Fusible Safety Switch 600A 600V (200kA AIC)

Square D
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The Square D CH366 is a heavy-duty fusible safety switch designed for isolating and protecting three-phase electrical circuits up to 600A. It provides a 600V AC rating and a high interrupting capacity of 200kA at 600V for reliable circuit protection using Class H or R fuses. The robust, NEMA 1 enclosed construction measures 1276.35 mm H x 701.80 mm W x 257.30 mm D and weighs 174.01 lb, built for industrial durability. This Series E disconnect switch complies with applicable industry standards and is engineered for integration into compatible RJF panelboards, making it suitable for demanding applications in industrial power distribution and machinery control.

Key Features & Specifications
  • Type: CH Series, Fusible Safety Disconnect Switch
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Configuration: Single, 3-Pole
  • Dimensions: 1276.35 mm H x 701.80 mm W x 257.30 mm D (50.25 in x 27.63 in x 10.13 in)
  • Weight: 174.01 lb
  • AIC Rating: 200kA @ 600V
  • Fuse Class: H, R
  • Phase: 3
  • NEMA Rating: 1
  • Compatible Frames: RJF
  • Standards: Meets applicable industry standards
  • Applications: Industrial power distribution, machinery control, and circuit isolation


Product Identification
  • UPC: 78590118182
  • GTIN: 00785901181828