Commercial & Utility-Scale Solar Cable | UL4703 PV Wire | Made in USA

Commercial & Utility-Scale Solar Cable — UL4703 Copper & Aluminum PV Wire | Made in USA

Photovoltaic Cable LLC supplies large-format UL4703-certified PV wire for commercial and utility-scale solar projects. This collection includes copper PV wire in 6, 8, and 10 AWG in 2,500 and 5,000 ft reels, as well as 500 MCM aluminum photovoltaic cable for high-capacity feeder runs. All inventory ships same day from our three U.S. fulfillment centers.

Why EPC contractors choose large reels

2,500 ft and 5,000 ft reels reduce the number of cable splices across large solar arrays, lowering labor time and improving installation quality. Fewer splices also mean fewer potential failure points over the life of the system — a critical consideration for commercial and utility-scale projects with long-term performance requirements.

Available products in this collection

Copper vs aluminum PV wire for large projects

Copper PV wire in 6, 8, and 10 AWG is the standard for string wiring and combiner box to inverter runs in most commercial projects. For very long main feeder runs at utility scale where weight and cost per foot matter, 500 MCM aluminum PV wire provides a cost-effective alternative. Our technical team can help you determine the right conductor for your system design — call +1 305 842-6291.

Recommended applications

• Commercial rooftop solar systems (2,500 and 5,000 ft runs)
• Ground-mounted utility-scale solar farms
• DC string wiring and combiner box to inverter feeder runs
• EPC contractor projects requiring large reel formats
• Both grounded and ungrounded PV systems per NEC Article 690
• Direct burial, conduit, and free-air installation

Shipping & availability

All copper PV wire in this collection is in stock and ships same day from three U.S. fulfillment centers: LaPorte, Texas — Miami Lakes, Florida — Rancho Dominguez, California. For large multi-reel orders or project-specific pricing, contact our sales team to coordinate consolidated shipments and minimize freight costs. Free shipping on orders over $10,000 — applied automatically at checkout.

Frequently asked questions

Do you offer volume pricing for large projects?
Yes. Contact our sales team at +1 305 842-6291 or sales@photovoltaiccable.com for project-specific pricing on large quantities.

Which AWG should I specify for a utility-scale project?
It depends on your string current and run distance. Use our Voltage Loss Calculator for a gauge recommendation, or contact our team for a project-specific consultation.

Is the 500 MCM aluminum cable always in stock?
The 500 MCM aluminum PV wire is in stock with limited quantities. For large orders, contact us in advance to confirm availability and lead time.

Do you ship to job sites directly?
Yes. We ship directly to job sites across the USA. For time-sensitive projects, contact us to discuss expedited options from our nearest fulfillment center.

Project inquiries: Call +1 305 842-6291 or email sales@photovoltaiccable.com