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Square D SD4220 - Fusible 200A 240V 3-Phase Bus Plug

Square D
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Square D SD4220 is a fusible bus plug from the SD - Round Bar family, designed for overcurrent protection and circuit isolation in industrial power distribution systems. It is rated for 240V AC, 200A continuous current, and delivers a 200kA interrupting capacity at 240V, ensuring robust fault handling. The unit weighs 35 lb, features a 3-phase configuration, and accepts R and H fuse classes with #4 AWG wire connections. It complies with applicable NEMA and UL standards for industrial electrical equipment. Typical applications include branch circuit protection in busway systems for manufacturing plants, data centers, and commercial facilities.

Key Features & Specifications
  • Type: Fusible bus plug, SD series, round bar design
  • Voltage Rating: 240V AC
  • Current Rating: 200A
  • AIC Rating: 200kA at 240V
  • Phase: 3
  • Fuse Class: R, H
  • Wire: #4 AWG
  • Weight: 35 lb
  • Family: SD - Round Bar
  • Item Subcategory: Fusible


Product Identification
  • UPC: Not specified
  • GTIN: Not specified