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Circuit Breakers, Motor Controls, Bus Plugs, and other Electrical Supplies, New and Used - In Stock at WestCoastPower.com. Call us at (800) 214-0759

Square D Bus Plugs - New, Reconditioned and Obsolete

You can trust West Coast Power to get you the Square D Bus Plug you need, quickly, including the I-Line, Round Bar SD, PIN-QO, and PIN-FA Square D bus plugs. Each bus plug features a full 1-year replacement warranty. Call us today for questions or to discuss your specific bus plug needs. Call us if you don't see the Square D bus plug you need listed below.

Square D I-Line Bus Plugs
Square D I-Line Bus Plugs
  • PQ/PQB fusible type, up to 1000 Amp
  • 3 or 4 Wire
  • PFA through PTPA
  • 15 Amp to 1600 Amp
  • 1-year replacement warranty
  • Call 1-866-955-0888 for more info
  • Square D Round Bar SD Bus Plugs
    Square D Round Bar SD Bus Plugs
  • Fusible or circuit breaker type bus plugs
  • 1-year replacement warranty
  • Call 1-866-955-0888 for more info
  • Square D PIN-QO Bus Plugs
    Square D PIN-QO and PIN-FA Bus Plugs
  • Also FA fusible type
  • 3 or 4 Wire
  • 240 or 480 Volt rated
  • 1-year replacement warranty
  • Call 1-866-955-0888 for more info
  • Square D PIN-FA Bus Plugs
    Square D PIN-FA Bus Plugs
  • Also FA fusible type
  • 3 or 4 Wire
  • 240 or 480 Volt rated
  • 1-year replacement warranty
  • Call 1-866-955-0888 for more info

  • View All Bus Plugs

    Square D is an American manufacturer of equipment used to control and distribute electric power headquartered in Palatine, Illinois.

    Square D was founded in 1903 in Detroit, Michigan by Bryson Dexter Horton who is credited with the invention of the safety switch which encased high voltage switches and started the company's main line of business of circuit breakers and encased control panels. In 1991, the company was acquired and became a subsidiary of Schneider Electric. Products and systems developed by the Square D brand are present in all sectors of activity, from circuit breakers to monitoring and control systems. The tertiary and residential building sectors are major consumers of Square D product.

    Call us for a custom application!
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