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Square D PBQ4640GGSC - Fusible 400A 600V Bus Plug

Square D
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Square D PBQ4640GGSC is a 400A, 600V fusible bus plug designed for branch circuit protection within I-Line busway systems. This 3-pole unit delivers a 200kA interrupting rating at 480V and accepts Class H, K, and R fuses for versatile overcurrent protection. Constructed with a bolt-on mounting style, it measures 20.94 inches in height, 4.44 inches in width, and 3.09 inches in depth, with a weight of 0.01 lb. It is certified to CSA C22.2 No. 27 and UL Listed under File E22182, and is manufactured in the United States. Typical applications include power distribution in commercial and industrial facilities requiring reliable, high-capacity protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Fusible
  • Family: I-Line
  • Country of Origin: United States
  • Type: PBQ
  • Dimensions: Height 20.94 in (532 mm) x Depth 3.09 in (78.49 mm) x Width 4.44 in (112.78 mm)
  • Weight: 0.01 lb
  • Fuse Class: H, K, R
  • Wire: 4
  • Voltage Rating: 600V
  • Wire Size: AWG 6...300 kcmil 1 ground / AWG 1/0...600 kcmil 2 phase and neutral
  • Certification: CSA C22.2 NO 27-UL LISTED FILE E22182
  • AIC rating: 200kA@480V
  • Phase: 3
  • Current Rating: 400A
  • Amperage: 400A
  • Poles: 3
  • Mounting Type: Bolt-On
  • Series: I-Line
  • Fusibility: Fusible (Class H, K, R)
  • Interrupt Rating: 200kA @ 480V
  • Standards: UL, CSA, RoHS


Product Identification
  • UPC: 785901753315
  • GTIN: 00785901753315