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Square D PBQ3640GRA - Fusible 400A 600V Bus Plug

Square D
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The Square D PBQ3640GRA is a fusible bus plug from the I-Line family, designed to provide overcurrent protection and circuit disconnection for industrial power distribution systems. It is rated for 600V AC, 400A, and 3-phase operation, with a high interrupting capacity of 200kA at 480V. This unit features a heavy-duty steel enclosure measuring 20.9 in (532 mm) in height, 42.008 in (1067 mm) in width, and 13.7 in (349 mm) in depth, weighing 209.001 lb, and accepts H, K, or R class fuses. It is UL and CSA certified, complying with North American safety standards for industrial electrical equipment. Typical applications include power distribution in factories, commercial buildings, and process plants requiring reliable branch circuit protection.

Key Features & Specifications
  • Type: Fusible bus plug, I-Line family, steel enclosure
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 20.9 in (532 mm) x 42.008 in (1067 mm) x 13.7 in (349 mm) (Height x Width x Depth)
  • Standards: UL, CSA
  • Applications: Industrial power distribution, branch circuit protection
  • Switch Type: Fusible disconnect
  • Configuration: 3-wire, 3-phase
  • Phase: 3
  • Voltage: 600V
  • Amperage: 400A
  • AIC rating: 200kA@480V
  • Connection: Wire
  • Poles: 3
  • Protection: Overcurrent
  • Fuse Class: H, K, R
  • Wire: 3
  • Wire Size: AWG 6...300 kcmil 1 ground; AWG 1/0...600 kcmil 2 phase and neutral
  • Certification: UL, CSA
  • Installation Type: Panel mount
  • Item QTY: 1
  • Weight: 209.001 lb


Product Identification
  • UPC: 785901105084
  • GTIN: 00785901105084