Bus Duct

While our website showcases a large assortment of our products, it does not reflect the complete inventory of products currently available. For real-time availability and to ensure we can meet your specific needs, please contact our sales team at 1-800-328-1842. New products arrive daily and our knowledgeable staff are happy to assist you in locating the exact item(s) you need.

Square D I-Line Bus Duct AP502 | 225 Amp 277/480 Volt | 3 Phase 4 Wire R&G

Square D I-Line AP502 aluminum bus duct; 225 amp, three phase, four-wire, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP502
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Square D I-Line Bus Duct AP502G | 225 Amp 277/480 Volt | 3 Phase 4 Wire W/ GRND R&G

Square D I-Line AP502G aluminum bus duct; 225 amp, three phase, four-wire with ground, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP502G
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Square D I-Line Bus Duct AP504 | 400 Amp 277/480 Volt | 3 Phase 4 Wire R&G

Square D I-Line AP504 aluminum bus duct; 400 amp, three phase, four-wire, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP504
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Square D I-Line Bus Duct AP504G | 400 Amp 277/480 Volt | 3 Phase 4 Wire W/ GRND R&G

Square D I-Line AP504G aluminum bus duct; 400 amp, three phase, four-wire with ground, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP504G
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Square D I-Line Bus Duct AP506 | 600 Amp 277/480 Volt | 3 Phase 4 Wire R&G

Square D I-Line AP506 aluminum bus duct; 600 amp, three phase, four-wire, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP506
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Square D I-Line Bus Duct AP506G | 600 Amp 277/480 Volt | 3 Phase 4 Wire W/ GRND R&G

Square D I-Line AP506G aluminum bus duct; 600 amp, three phase, four-wire with ground, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP506G
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Square D I-Line Bus Duct AP508 | 800 Amp 277/480 Volt | 3 Phase 4 Wire R&G

Square D I-Line AP508 aluminum bus duct; 800 amp, three phase, four-wire, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP508
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Square D I-Line Bus Duct AP508G | 800 Amp 277/480 Volt | 3 Phase 4 Wire W/ GRND R&G

Square D I-Line AP508G aluminum bus duct; 800 amp, three phase, four-wire with ground, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP508G
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Square D I-Line Bus Duct AP510 | 1000 Amp 277/480 Volt | 3 Phase 4 Wire R&G

Square D I-Line AP510 aluminum bus duct; 1000 amp, three phase, four-wire, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP510
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Square D I-Line Bus Duct AP510G | 1000 Amp 277/480 Volt | 3 Phase 4 Wire W/ GRND R&G

Square D I-Line AP510G aluminum bus duct; 1000 amp, three phase, four-wire with ground, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP510G
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Square D I-Line Bus Duct AP512 | 1200 Amp 277/480 Volt | 3 Phase 4 Wire R&G

Square D I-Line AP512 aluminum bus duct; 1200 amp, three phase, four-wire, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP512
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Square D I-Line Bus Duct AP512G | 1200 Amp 277/480 Volt | 3 Phase 4 Wire W/ GRND R&G

Square D I-Line AP512G aluminum bus duct; 1200 amp, three phase, four-wire with ground, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP512G
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Square D I-Line Bus Duct AP516 | 1600 Amp 277/480 Volt | 3 Phase 4 Wire R&G

Square D I-Line AP516 aluminum bus duct; 1600 amp, three phase, four-wire, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP516
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Square D I-Line Bus Duct AP516G | 1600 Amp 277/480 Volt | 3 Phase 4 Wire W/ GRND R&G

Square D I-Line AP516G aluminum bus duct; 1600 amp; three phase, four-wire with ground, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP516G
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Square D I-Line Bus Duct AP520 | 2000 Amp 277/480 Volt | 3 Phase 4 Wire R&G

Square D I-Line AP520 aluminum bus duct; 2000 amp, three phase, four-wire, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP520
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Square D I-Line Bus Duct AP520G | 2000 Amp 277/480 Volt | 3 Phase 4 Wire W/ GRND R&G

Square D I-Line AP520G aluminum bus duct; 2000 amp, three phase, four-wire with ground, 277/480 volt. Reconditioned and guaranteed with a one year warranty.
SKU: AP520G
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Square D I-Line Bus Duct CP302 | 225 Amp 600 Volt | 3 Phase 3 Wire R&G

Square D I-Line CP302 Square D I-Line bus duct; 225 amp, three phase, three-wire, 600 volt. Reconditioned and guaranteed with a one year warranty.
SKU: CP302
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Square D I-Line Bus Duct CP302G | 225 Amp 600 Volt | 3 Phase 3 Wire W/ GRND R&G

Square D I-Line CP302G copper bus duct; 225 amp, three phase, three-wire with ground, 600 volt. Reconditioned and guaranteed with a one year warranty.
SKU: CP302G
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Square D I-Line Bus Duct CP304 | 400 Amp 600 Volt | 3 Phase 3 Wire R&G

Square D I-Line CP304 copper bus duct; 400 amp, three phase, three-wire, 600 volt. Reconditioned and guaranteed with a one year warranty.
SKU: CP304
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Square D I-Line Bus Duct CP304G | 400 Amp 600 Volt | 3 Phase 3 Wire W/ GRND R&G

Square D I-Line CP304G copper bus duct; 400 amp, three phase, three-wire with ground, 600 volt. Reconditioned and guaranteed with a one year warranty.
SKU: CP304G
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Bus Duct/Busway

 

Looking for busway or bus duct for your facility? EMSCO offers one of the largest selections of new, used, and reconditioned bus duct in the U.S., with over 25 miles of inventory ready to ship. Our extensive selection includes both plug-in and feeder bus duct styles, available in copper and aluminum, and ranging from 100 to 5000 amps to meet your industrial power distribution needs. Each unit is reconditioned to PEARL (Professional Electrical Apparatus Reconditioning League) standards, undergoing rigorous testing to ensure it meets EMSCO’s criteria for safety, performance, and longevity.

Comprehensive Range of Trusted Brands

EMSCO’s inventory includes trusted brands like General Electric (Armor-Clad, Spectra, FVK), Square D (I-Line I & II, Round Bar), Cutler-Hammer/Westinghouse (Pow-R-Way), ITE, Siemens (Sentron, XL-U), ABB, and other hard-to-find manufacturers. Our reconditioned bus ducts and busways are ideal for expanding or replacing existing systems, providing reliable and cost-effective solutions with shorter lead times than new options. We also stock essential end tap boxes, center tap boxes, elbows, T-sections, and other accessories to ensure a complete setup.

Why Choose EMSCO’s Reconditioned Bus Duct?

EMSCO’s reconditioned bus duct inventory is PEARL-certified, meaning each unit undergoes rigorous inspection and testing for safe, dependable performance. Backed by a 1-year warranty, our reconditioned units deliver quality at a fraction of the cost of new, without compromising reliability. With high amp bus duct options and shorter lead times, EMSCO keeps your facility running smoothly and efficiently, no matter your power distribution needs.

Complete Accessories and Customization Options

To meet your unique setup requirements, EMSCO provides a complete selection of bus duct accessories and spare parts, including end tap boxes, elbows, T-sections, and connectors for seamless integration. Whether you need a custom configuration or a simple replacement, EMSCO’s team is ready to assist with tailored solutions that fit your industrial power distribution needs.

Contact EMSCO Today

With decades of experience in industrial electrical power distribution, EMSCO is dedicated to delivering high-quality, affordable solutions that keep facilities up and running. Contact us today to explore our extensive inventory of new and reconditioned bus ducts and busway systems to find the perfect fit for your requirements. EMSCO: The reliable choice for power distribution solutions.



Facing a tight timeline? See how EMSCO helped Flexaust meet urgent power distribution needs on time and within budget.

 

stacked bus duct