Browse Store 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.
SD67438 Square D Round Bar Busplug R&G
Square D SD67438 Round Bar LA frame breaker style bus plug; 350 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD67438
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SD67446 Square D Round Bar Busplug R&G
Square D SD67446 Round Bar LA frame breaker style bus plug; 400 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD67446
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SD75415 Square D Round Bar Busplug R&G
Square D SD75415 Round Bar FA frame breaker style bus plug; 15 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD75415
$1,400.00
SD75416 Square D Round Bar Busplug R&G
Square D SD75416 Round Bar FA frame breaker style bus plug; 100 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD75416
$1,400.00
SD75420 Square D Round Bar Busplug R&G
Square D SD75420 Round Bar FA frame breaker style bus plug; 20 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD75420
$1,400.00
SD75430 Square D Round Bar Busplug R&G
Square D SD75430 Round Bar FA frame breaker style bus plug; 30 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD75430
$1,400.00
SD75440 Square D Round Bar Busplug R&G
Square D SD75440 Round Bar FA frame breaker style bus plug; 40 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD75440
$1,400.00
SD75450 Square D Round Bar Busplug R&G
Square D SD75450 Round Bar FA frame breaker style bus plug; 50 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD75450
$1,400.00
SD75460 Square D Round Bar Busplug R&G
Square D SD75460 Round Bar FA frame breaker style bus plug; 60 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD75460
$1,400.00
SD75470 Square D Round Bar Busplug R&G
Square D SD75470 Round Bar FA frame breaker style bus plug; 70 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD75470
$1,400.00
SD78417 Square D Round Bar Busplug R&G
Square D SD78417 Round Bar KA frame breaker style bus plug; 125 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD78417
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SD78418 Square D Round Bar Busplug R&G
Square D SD78418 Round Bar KA frame breaker style bus plug; 150 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD78418
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SD78419 Square D Round Bar Busplug R&G
Square D SD78419 Round Bar KA frame breaker style bus plug; 175 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD78419
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SD78426 Square D Round Bar Busplug R&G
Square D SD78426 Round Bar KA frame breaker style bus plug; 200 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD78426
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SD78427 Square D Round Bar Busplug R&G
Square D SD78427 Round Bar KA frame breaker style bus plug; 225 amp, 480 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SD78427
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SL310ED4G GE Low-Amp Circuit Breaker Bus Plug R&G
General Electric SL310ED4G Spectra low-amp breaker style bus plug; 100 amp, 240 or 480 volt, three-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SL310ED4G
$1,200.00
SL310SEDG GE Low-Amp Circuit Breaker Bus Plug R&G
General Electric SL310SEDG Spectra low-amp breaker style bus plug. 100 amp; 240, 480 or 600 volt; three-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SL310SEDG
$1,200.00
SL310SEHG GE Low-Amp Circuit Breaker Bus Plug
General Electric SL310SEHG Spectra low-amp breaker style bus plug. 100 amp; 240, 480 or 600 volt; three-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SL310SEHG
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SL310SELG GE Low-Amp Circuit Breaker Bus Plug
General Electric SL310SELG Spectra low-amp breaker style bus plug. 100 amp; 240, 480 or 600 volt; three-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SL310SELG
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SL310SFHG GE Low-Amp Circuit Breaker Bus Plug
General Electric SL310SFHG Spectra low-amp breaker style bus plug. 100 amp; 240, 480 or 600 volt; three-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SL310SFHG
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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.
Shop by Family | Speed Up the Match | Request a Quote
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.