CH321NRB - Essential Electric Supply
CH321NRB - Essential Electric Supply

Square D CH321NRB - Fusible Safety Switch 30A 240V (NEMA 3R)

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Square D CH321NRB is a fusible safety switch designed for providing reliable circuit isolation and overcurrent protection in industrial power distribution systems. It is rated for 240V AC operation with a 30A current capacity and features a three-pole, single-phase configuration within a compact enclosure measuring 377.95 mm H x 191.77 mm W x 123.44 mm D and weighing 8.64 lb. The switch is constructed for durability with a NEMA 3R enclosure rating for outdoor use and complies with industry standards, including an interrupting capacity of 10kA at 600V. Typical applications include motor control centers, HVAC systems, and industrial machinery where fused protection for H and R class fuses is required.

Key Features & Specifications
  • Type: Fusible Safety Disconnect Switch, Series F, CH Type
  • Voltage Rating: 240V AC
  • Current Rating: 30A
  • Configuration: Single
  • Poles: 3
  • Phase: 3
  • AIC Rating: 10kA @ 600V
  • Fuse Class: H, R
  • NEMA Rating: 3R
  • Compatible Frames: RJF
  • Switch Style: Fusible
  • Dimensions: 14.88 in (377.95 mm) H x 7.55 in (191.77 mm) W x 4.86 in (123.44 mm) D
  • Weight: 8.64 lb
  • Standards: Designed to meet applicable industrial safety standards
  • Applications: Industrial power distribution, motor control, HVAC, and machinery protection


Product Identification
  • Manufacturer: Schneider Electric
  • Model: CH321NRB
  • Item Subcategory: Disconnect
  • Family: Series F