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.
SB440JH4G GE Bus Plug R&G
General Electric SB440JH4G Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JH4G
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SB440JH6 GE Bus Plug R&G
General Electric SB440JH6 Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JH6
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SB440JH6G GE Bus Plug R&G
General Electric SB440JH6G Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JH6G
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SB440JJ GE Bus Plug R&G
General Electric SB440JJ Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JJ
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SB440JJG GE Bus Plug R&G
General Electric SB440JJG Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JJG
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SB440JK4 GE Bus Plug R&G
General Electric SB440JK4 Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JK4
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SB440JK4G GE Bus Plug R&G
General Electric SB440JK4G Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JK4G
Contact us for pricing:
SB440JK6 GE Bus Plug R&G
General Electric SB440JK6 Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JK6
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SB440JK6G GE Bus Plug R&G
General Electric SB440JK6G Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440JK6G
Contact us for pricing:
SB440KH8G GE Bus Plug R&G
General Electric SB440KH8G Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440KH8G
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SB440KHB GE Bus Plug R&G
General Electric SB440KHB Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SB440KHB
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SB440KM GE Bus Plug R&G
General Electric SB440KM Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: SB440KM
$4,500.00
SB440KMG GE Bus Plug R&G
General Electric SB440KMG Spectra T-frame breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440KMG
$4,500.00
SB440SGH4G GE Bus Plug R&G
General Electric SB440SGH4G Spectra breaker style bus plug. 400 amp; 240, 480 or 600 volt; four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440SGH4G
Contact us for pricing:
SB440SGH4GF GE Bus Plug R&G
General Electric SB440SGH4GF Spectra breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440SGH4GF
Contact us for pricing:
SB440SGH6G GE Bus Plug R&G
General Electric SB440SGH6G Spectra breaker style bus plug. 400 amp; 240, 480 or 600 volt; four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440SGH6G
Contact us for pricing:
SB440SGH6GF GE Bus Plug R&G
General Electric SB440SGH6GF Spectra breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440SGH6GF
Contact us for pricing:
SB440SGL4G GE Bus Plug R&G
General Electric SB440SGL4G Spectra breaker style bus plug. 400 amp; 240, 480 or 600 volt; four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440SGL4G
Contact us for pricing:
SB440SGL4GF GE Bus Plug R&G
General Electric SB440SGL4GF Spectra breaker style bus plug; 400 amp, 600 volt, four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440SGL4GF
Contact us for pricing:
SB440SGL6G GE Bus Plug R&G
General Electric SB440SGL6G Spectra breaker style bus plug. 400 amp; 240, 480 or 600 volt; four-wire with ground. Reconditioned and guaranteed with a one year warranty.
SKU: SB440SGL6G
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.
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.