Bus 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.

ZBP-JB3200N Westinghouse Bus Plug R&G

Westinghouse ZBP-JB3200N ZTAP breaker style bus plug; 200 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-JB3200N
Contact us for pricing:

ZBP-JB3225N Westinghouse Bus Plug R&G

Westinghouse ZBP-JB3225N ZTAP breaker style bus plug; 225 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-JB3225N
Contact us for pricing:

ZBP-JB3250N Westinghouse Bus Plug R&G

Westinghouse ZBP-JB3250N ZTAP breaker style bus plug; 250 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-JB3250N
Contact us for pricing:

ZBP-KB3125N Westinghouse Bus Plug R&G

Westinghouse ZBP-KB3125N ZTAP breaker style bus plug; 125 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-KB3125N
Contact us for pricing:

ZBP-KB3150N Westinghouse Bus Plug R&G

Westinghouse ZBP-KB3150N ZTAP breaker style bus plug; 150 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-KB3150N
Contact us for pricing:

ZBP-KB3175N Westinghouse Bus Plug R&G

Westinghouse ZBP-KB3175N ZTAP breaker style bus plug; 175 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-KB3175N
Contact us for pricing:

ZBP-KB3200N Westinghouse Bus Plug R&G

Westinghouse ZBP-KB3200N ZTAP breaker style bus plug; 200 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-KB3200N
Contact us for pricing:

ZBP-KB3225N Westinghouse Bus Plug R&G

Westinghouse ZBP-KB3225N ZTAP breaker style bus plug; 225 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-KB3225N
Contact us for pricing:

ZBP-KB3250N Westinghouse Bus Plug R&G

Westinghouse ZBP-KB3250N ZTAP breaker style bus plug; 250 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-KB3250N
Contact us for pricing:

ZBP-LB3250N Westinghouse Bus Plug R&G

Westinghouse ZBP-LB3250N ZTAP breaker style bus plug; 250 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-LB3250N
Contact us for pricing:

ZBP-LB3300N Westinghouse Bus Plug R&G

Westinghouse ZBP-LB3300N ZTAP breaker style bus plug; 300 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-LB3300N
Contact us for pricing:

ZBP-LB3350N Westinghouse Bus Plug R&G

Westinghouse ZBP-LB3350N ZTAP breaker style bus plug; 350 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-LB3350N
Contact us for pricing:

ZBP-LB3400N Westinghouse Bus Plug R&G

Westinghouse ZBP-LB3400N ZTAP breaker style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-LB3400N
Contact us for pricing:

ZBP-LBB3250N Westinghouse Bus Plug R&G

Westinghouse ZBP-LBB3250N ZTAP breaker style bus plug; 250 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-LBB3250N
Contact us for pricing:

ZBP-LBB3300N Westinghouse Bus Plug R&G

Westinghouse ZBP-LBB3300N ZTAP breaker style bus plug; 300 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-LBB3300N
Contact us for pricing:

ZBP-LBB3350N Westinghouse Bus Plug R&G

Westinghouse ZBP-LBB3350N ZTAP breaker style bus plug; 350 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-LBB3350N
Contact us for pricing:

ZBP-LBB3400N Westinghouse Bus Plug R&G

Westinghouse ZBP-LBB3400N ZTAP breaker style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-LBB3400N
Contact us for pricing:

ZBP-MC3500N Westinghouse Bus Plug R&G

Westinghouse ZBP-MC3500N ZTAP breaker style bus plug; 500 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-MC3500N
Contact us for pricing:

ZBP-MC3600N Westinghouse Bus Plug R&G

Westinghouse ZBP-MC3600N ZTAP breaker style bus plug; 600 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-MC3600N
Contact us for pricing:

ZBP-MC3700N Westinghouse Bus Plug R&G

Westinghouse ZBP-MC3700N ZTAP breaker style bus plug; 700 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: ZBP-MC3700N
Contact us for pricing:

Find. Fix. Fast. When you need an exact match, EMSCO is built for one thing: getting you the right bus plug quickly—especially when it’s obsolete, oddball, or “not available” anywhere else.

Real inventory, real answers: The website is a strong snapshot, but not our full shelf. New product arrives daily. If you see “Contact us for price”, it simply means we’ll quote it to confirm configuration and current pricing—not that it’s out of stock.

Need it now? Call our 24-hour emergency line: 1-800-328-1842.

Shop by family (quick start)

If you already know your system, use the Series filter above to narrow fast. These are the families we see most often for replacements and “keep it running” calls:

  • I-Line (I / II)
  • Pow-R-Way & Pow-R-Way III
  • Sentron (standard & low-amp)
  • Spectra (SB & low-amp)
  • Armor-Clad & FVK
  • XJ-L family (XLU / XLX / XLVB)
  • CP2 / CP4
  • Round Bar (SD type)
  • ZTAP

Not sure what you have? That’s normal—Skip the guesswork and send photos (details below). We’ll confirm before you buy.

What you can source here (fast)

  • Breaker and fusible styles
  • 3- and 4-wire, with and without ground
  • Common industrial voltages (including 240, 480, 600)
  • Broad range coverage (often 10–5000A and 90–600V, depending on family)
  • Replacement fuses and circuit breakers to complete the job

How EMSCO helps you win the day

  • Legacy and obsolete systems are our niche: We regularly support Square D, GE, Cutler-Hammer/Westinghouse, Siemens/ITE, Eaton, and other older lines that are hard to source.
  • Refurb you can trust: Reconditioned units are inspected and tested and backed by a 1-year warranty.
  • Fast match help (with a human): When details matter—stabs, wire/ground, breaker frame, voltage—we help you confirm the exact fit.

Speed up the match (photos work)

If you want the fastest “yes, that’s the one,” send what you have. Even incomplete info is fine.

  • Part number(s) and series name (if visible)
  • Amperage and voltage
  • Wire/ground configuration
  • Photos of the nameplate/labels and the stabs/connection points (plus a side/profile shot)

Pro tip: Two clear photos beat a long email. If you can send a nameplate and a close-up of the stabs/connection, we can usually narrow it down quickly.

Refurbished standards (what “R&G” means here)

  • Inspected for condition and configuration
  • Cleaned and checked for safe, reliable operation
  • Tested and backed by a 1-year warranty

Avoid the wrong order

  • Series matters: similar-looking plugs can be different families.
  • Wire/ground matters: 3-wire vs 4-wire (and ground) changes the fit.
  • Style matters: breaker vs fusible, plus breaker frame specifics.

Completing the job (not just the plug)

If you’re expanding a line or finishing a run, we can help you source the related pieces that keep the project moving. See Bus Duct and Tap Boxes & Accessories.

Need it now? Call our 24-hour emergency line: 1-800-328-1842 or request a quote.

Looking for basics? Read our bus plug overview.