Bus Plugs & Busway

Edmundson Industrial sources bus plugs (plug-in units) and busway sections — fusible and circuit-breaker, from 30 A through 800-plus A — that tap power off a busway run for a machine or panel. A bus plug must match the busway line and generation, so send the busway brand and the plug catalog number, and we quote availability, condition, and lead time.

Independent sourcing, not an authorized distributor. Bus plugs are specific to the busway system — verify the brand, amperage, and generation before ordering. We supply new, surplus, and used-tested, with condition disclosed before sale.

Types we source

Type	Notes
Fusible bus plug	Switch plus fuses (Class H / J / R), 30–800 A
Circuit-breaker bus plug	Molded-case breaker plug-in unit
Busway / bus duct	Feeder and plug-in busway sections and elbows
Neutral / ground options	With or without full neutral and ground

Common busway systems

System	Notes
Square D I-Line II	PQ fusible and PBLC breaker plug-in units
GE Spectra / Armor-Clad	Spectra Series and legacy Armor-Clad / AV-Line bus plugs
Eaton Pow-R-Way III	Pow-R-Way busway and plug-in units (incl. legacy Westinghouse)
Siemens / ITE	Siemens busway and legacy ITE systems

Brands we source & cross-reference

Square DGeneral ElectricEaton / Cutler-HammerSiemensITE

How to match a bus plug

Busway brand and generation (for example Square D I-Line II)
Amperage rating
Fusible or circuit-breaker
Number of poles and voltage
Neutral and ground configuration

Square D I-Line II plug catalog numbers read like PQ4610 (fusible) or PBLC34400G (breaker). Send the busway brand and the plug catalog number and we match it.

How we quote a bus plug

Send the busway brand and plug catalog number (for example Square D I-Line II PQ4610), or a photo of the existing plug and its label.
We confirm amperage, fusible or breaker, poles, voltage, and neutral / ground.
We quote condition, price, and lead time — new, surplus, or used-tested, same-day on most requests.

Condition & sourcing

Every bus plug is supplied new, surplus, or used-tested, with condition disclosed before sale and photos on request. We are an independent surplus and sourcing company, not an authorized distributor.

FAQ

Will any bus plug fit my busway?

No. Bus plugs are specific to the busway brand and generation — a Square D I-Line plug will not fit GE or Eaton busway. Send the busway brand, amperage, and the existing plug catalog number and we match it.

Do you carry obsolete bus plugs?

Yes. Discontinued bus plugs and legacy busway, including older GE Armor-Clad and Westinghouse lines, are a regular request. We source them as surplus and used-tested. Condition is disclosed before sale.

Fusible or circuit-breaker — which do I need?

A fusible bus plug holds fuses for overcurrent protection; a breaker bus plug uses a molded-case breaker. Match what the run was designed for, or tell us the protection you want.

Are you an authorized distributor?

No. Edmundson Industrial is an independent surplus and sourcing company, not an authorized distributor. We supply bus plugs new, surplus, and used-tested with condition disclosed before sale.

Request a Quote

or send the part number or specs to sales@edmundsonindustrial.com · (832) 975-8827 · Houston, TX. Same-day response on most requests.