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Square D PBQ4640GRA - Fusible 400A 600V Bus Plug

Square D
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Square D PBQ4640GRA is a fusible bus plug designed for overcurrent protection and power distribution in industrial electrical systems. It is rated for 600V and 400A, with a high interrupting capacity of 200kA at 480V, and operates on a 3-phase, 4-wire configuration. This unit weighs 175 lb and is constructed as a plug-in mounting type for Square D I-Line and I-Line II busway systems, featuring compatibility with Class H, K, or R fuses. It complies with UL, CSA, and RoHS certifications, ensuring adherence to industry safety and environmental standards. Typical applications include power distribution in manufacturing facilities, data centers, and commercial buildings requiring reliable branch circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Fusible
  • Family: I-Line
  • Type: PBQ
  • Weight: 175 lb
  • Fuse Class: H, K, R
  • Wire: 4-Wire (including neutral and ground)
  • Voltage Rating: 600V
  • AIC rating: 200kA@480V
  • Phase: 3-Phase
  • Current Rating: 400A
  • Amperage: 400 Amps
  • Voltage: 600 Volts
  • Poles: 3 Pole
  • Mounting Type: Plug-in for busway
  • Certifications: UL, CSA, RoHS