Square D H321NRB Disconnect Switch (Fusible) - Essential Electric Supply
Square D H321NRB - Fusible Safety Switch 30A 3P (240V, 200kA AIC)
Square D H321NRB Disconnect Switch (Fusible) - Essential Electric Supply
Square D H321NRB - Fusible Safety Switch 30A 3P (240V, 200kA AIC)

Square D H321NRB - Fusible Safety Switch 30A 3P (240V, 200kA AIC)

Square D
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Square D H321NRB is a fusible safety switch designed for providing reliable circuit protection and isolation in industrial three-phase applications. It is rated for 240V AC systems with a 30A current capacity and features a 200kA interrupting rating at 240V for robust short-circuit protection. The switch is constructed within a NEMA 3R-rated enclosure measuring 377.95 mm H x 168.40 mm W x 123.95 mm D and weighing 8.569 lb, ensuring durability for indoor and outdoor use where exposed to rain. It complies with industry standards for safety disconnects and is typically applied in motor control centers, HVAC systems, and industrial machinery panels for safe maintenance and overload protection.

Key Features & Specifications
  • Type: H-Type Fusible Safety Disconnect Switch, Series F Family
  • Voltage Rating: 240V AC
  • Current Rating: 30A
  • Dimensions: 14.88 in (377.95 mm) H x 6.63 in (168.40 mm) W x 4.88 in (123.95 mm) D
  • Standards: NEMA 3R Enclosure Rating
  • Applications: Industrial three-phase motor control, HVAC, machinery panels
  • Switch Type: Fusible Safety Switch
  • Configuration: Single Unit
  • Phase: 3
  • AIC Rating: 200kA @ 240V
  • Poles: 3
  • Fuse Class: R
  • Enclosure: NEMA 3R


Product Identification
  • UPC: 785901480068
  • GTIN: 00785901480068