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Square D PBQ3640GR - Fusible 400A 600V Bus Plug

Square D
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The Square D PBQ3640GR is a fusible bus plug designed for primary circuit protection and power distribution within I-Line panelboard systems. It operates at a voltage rating of 600V and a current rating of 400A, with an AIC rating of 200kA at 480V, and is configured for 3-phase, 3-wire applications. This unit features a robust 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 195.001 lb, and accepts fuse classes H, K, and R with wire sizes ranging from AWG 6 to 300 kcmil for ground and AWG 1/0 to 600 kcmil for phase and neutral connections. It is UL Listed under file E22182 and CSA certified to C22.2 No. 27, ensuring compliance with North American safety standards. Typical industrial applications include power distribution in manufacturing facilities, commercial buildings, and heavy machinery environments requiring high fault current interruption.

Key Features & Specifications
  • Type: Fusible bus plug, I-Line family, PBQ series
  • 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)
  • Weight: 195.001 lb
  • Fuse Class: H, K, R
  • Wire: 3
  • Wire Size: AWG 6...300 kcmil 1 ground; AWG 1/0...600 kcmil 2 phase and neutral
  • Phase: 3
  • AIC rating: 200kA@480V
  • Certification: UL LISTED FILE E22182-CSA C22.2 NO 27
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901409021
  • GTIN: 00785901409021