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Square D PQ4603GJA - Class J 30A 600V Bus Plug

Square D
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Square D PQ4603GJA is a fusible bus plug designed for overcurrent protection in industrial power distribution systems. It operates at 600V AC with a 30A current rating and provides a 200kA interrupting capacity at 480V. This unit weighs 30 lb, features a Class J fuse configuration, and uses 4 AWG wire connections within an I-Line family enclosure. It complies with applicable NEMA and UL standards for electrical safety and reliability. Typical applications include branch circuit protection in manufacturing facilities, commercial buildings, and heavy machinery power feeds.

Key Features & Specifications
  • Type: Fusible bus plug, I-Line family, PQ series
  • Voltage Rating: 600V AC
  • Current Rating: 30A
  • AIC Rating: 200kA at 480V
  • Fuse Class: J
  • Wire Size: 4 AWG
  • Phase: 3
  • Weight: 30 lb
  • Enclosure: Standard industrial
  • Standards: NEMA, UL


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