Busway & Plugs

Note: Our website may not reflect our full in-stock inventory. If you don’t see what you need, call 1-800-328-1842 for a real-time inventory check and options. “Contact us for price” simply means we’ll quote it to confirm configuration and current pricing - not that it’s out of stock.

Busway & Plugs — in stock, ready to ship.


When your busway system can’t wait, you need a supplier who can actually pull the right parts—fast. EMSCO stocks over 25+ miles of bus duct and thousands of bus plugs, including hard-to-find and obsolete systems. Call our 24-hour emergency line and we’ll confirm fit, condition, and availability in real time.

Shop Bus Plugs  |  Shop Bus Duct  |  Shop Tap Boxes & Accessories

Need it fast? Our online catalog is a snapshot. New product arrives daily—call 1-800-328-1842 so we can check the shelves and lock in the exact match.

What we stock (and can pull today)

  • Bus plugs — breaker & fusible styles, broad amperage/voltage coverage, multiple wire/ground configurations, and major legacy series (including I-Line, Pow-R-Way, Spectra/Armor-Clad, Siemens/ITE, Bulldog, CP2/CP4 and more).
  • Bus duct — plug-in & feeder sections, copper or aluminum, multiple wire configurations, with/without ground, and a wide amp range for industrial facilities.
  • Tap boxes & accessories — tap boxes, end feeds, joint packs, hardware, and the pieces that make a run complete (not just “the obvious parts”).

Built for real-world busway problems

  • Exact replacements (including older series)
    If your system is legacy, mixed-vintage, or “not made anymore,” that’s our niche. We help you match series, configuration, and the details that matter.
  • Complete runs & expansions
    Need more than one piece? We can help build out a full run—sections plus the accessories you’ll wish you ordered up front.
  • Downtime situations
    When your crew is waiting, you don’t need a generic catalog page—you need a quick confirmation and a shipment plan. Call and we’ll move.

Why EMSCO

  • Inventory depth you can’t “fake” — over 25+ miles of bus duct in-stock plus thousands of bus plugs, including obsolete models.
  • Refurbished you can trust — refurbished busway components are thoroughly tested and backed by a 1-year warranty.
  • Fast logistics — we know downtime is expensive, so we prioritize fast, reliable shipping.
  • Real help, right now — talk to a specialist on our 24-hour emergency line: 1-800-328-1842.

Speed up the match

Send any of the following and we’ll narrow it down quickly: part number(s), series name, amperage/voltage, wire/ground, conductor material (copper/aluminum), and photos of labels/stabs/connection points.

Request a Quote  or call  1-800-328-1842


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