Square D H321N Disconnect Switch (Fusible) - Essential Electric Supply
Square D H321N - Fusible Safety Switch 30A 3P (200kA AIC)
Square D H321N - Fusible Safety Switch 30A 3P (200kA AIC)
Square D H321N Disconnect Switch (Fusible) - Essential Electric Supply
Square D H321N - Fusible Safety Switch 30A 3P (200kA AIC)
Square D H321N - Fusible Safety Switch 30A 3P (200kA AIC)

Square D H321N - Fusible Safety Switch 30A 3P (200kA AIC)

Square D
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Square D H321N is a fusible safety switch designed for providing reliable circuit isolation and overcurrent protection in industrial power distribution. It features a 30A current rating and 240V voltage rating for three-phase systems, housed in a compact NEMA 1 enclosure measuring 370.8 mm H x 165.1 mm W x 123.95 mm D with a weight of 8.001 lb. The switch is UL Listed and offers a high 200kA interrupting capacity at 240V, ensuring compliance with rigorous safety standards for use in motor control centers, industrial machinery, and panelboards where robust circuit protection is required.

Key Features & Specifications
  • Type: Fusible Safety Disconnect Switch, Series F, Type H
  • Voltage Rating: 240V AC
  • Current Rating: 30A
  • Configuration: Single, 3-Pole
  • Dimensions: 14.6 in (370.8 mm) H x 6.5 in (165.1 mm) W x 4.88 in (123.95 mm) D
  • Standards: UL Listed
  • Applications: Industrial power distribution, motor control, panelboards
  • Switch Style: Fusible
  • Phase: 3
  • AIC Rating: 200kA @ 240V
  • NEMA Rating: 1
  • Fuse Class: R
  • Wire Size: #12 to #6 AWG (Al) or #14 to #6 AWG (Cu)
  • Weight: 8.001 lb


Product Identification
  • UPC: 785901480082
  • GTIN: 00785901480082