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.
CP4HD365 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD365 CP4 fusible style bus plug; 400 amp, 600 volt, three-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD365
$4,500.00
CP4HD366 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD366 CP4 fusible style bus plug. 600 amp, 600 volt, three-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD366
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CP4HD421 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD421 CP4 fusible style bus plug; 30 amp, 240 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD421
$650.00
CP4HD422 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD422 CP4 fusible style bus plug; 60 amp, 240 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD422
$750.00
CP4HD423 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD423 CP4 fusible style bus plug; 100 amp, 240 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD423
$1,800.00
CP4HD424 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD424 CP4 fusible style bus plug; 200 amp, 240 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD424
$2,500.00
CP4HD425 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD425 CP4 fusible style bus plug; 400 amp, 240 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD425
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CP4HD426 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD426 CP4 fusible style bus plug; 600 amp, 240 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD426
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CP4HD461 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD461 CP4 fusible style bus plug; 30 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD461
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CP4HD462 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD462 CP4 fusible style bus plug; 60 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD462
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CP4HD463 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD463 CP4 fusible style bus plug; 100 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD463
$1,800.00
CP4HD464 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD464 CP4 fusible style bus plug; 200 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD464
$2,500.00
CP4HD465 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD465 CP4 fusible style bus plug; 400 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD465
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CP4HD466 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4HD466 CP4 fusible style bus plug; 600 amp, 600 volt, four-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4HD466
$8,500.00
CP4KB3125 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4KB3125 CP4 breaker style bus plug; 125 amp, 600 volt, three-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4KB3125
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CP4KB3150 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4KB3150 CP4 breaker style bus plug; 150 amp, 600 volt, three-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4KB3150
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CP4KB3175 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4KB3175 CP4 breaker style bus plug; 175 amp, 600 volt, three-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4KB3175
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CP4KB3200 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4KB3200 CP4 breaker style bus plug; 200 amp, 600 volt, three-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4KB3200
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CP4KB3225 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4KB3225 CP4 breaker style bus plug; 225 amp, 600 volt, three-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4KB3225
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CP4KB3250 Cutler-Hammer Bus Plug R&G
Cutler-Hammer CP4KB3250 CP4 breaker style bus plug; 250 amp, 600 volt, three-wire. Reconditioned and guaranteed with a one year warranty.
SKU: CP4KB3250
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.