350 MCM 4C Twisted XHHW-2 Aluminum Feeder Cable, Priority-Plex®, (Brown, Orange, Yellow, Gray)

This 350 MCM 4-conductor Priority-Plex® assembly is a high-capacity feeder solution specifically color-coded for 277/480V 3-phase, 4-wire systems. By factory-twisting the Brown, Orange, Yellow, and Gray conductors, this system streamlines the installation of high-voltage industrial circuits and eliminates the logistical challenges of managing multiple heavy reels.

Why Choose Priority-Plex® 350 MCM Aluminum Feeder?

At the 350 MCM size, conductors are stiff and heavy, making traditional pulls prone to "wedging" or "jamming" in conduit bends. The Priority-Plex® factory-twist ensures that the bundle stays uniform, reducing the total pulling tension and protecting the integrity of the insulation.

• High-Voltage Identification: The factory-colored conductors (Brown, Orange, Yellow, Gray) provide permanent phase identification for 480V systems, removing the need for on-site taping and ensuring compliance with color-coding standards.

• Single-Reel Efficiency: Replaces the need for four separate reels and jack stands. This reduces the footprint of the pull and allows for much faster setup in industrial electrical rooms or substations.

• XHHW-2 Durability: Features cross-linked polyethylene (XLPE) insulation, which is tougher and more heat-resistant than standard THHN, making it ideal for the high-demand environments of industrial feeders.

• Weight & Cost Savings: AA-8000 series aluminum provides a significant cost advantage over copper and reduces the physical strain on pulling equipment and installation crews.

Technical Specifications: 350 MCM 4C

• Conductor Size: 350 MCM (kcmil)

• Number of Conductors: 4 (Brown, Orange, Yellow, Gray)

• Conductor Material: AA-8000 Series Aluminum Alloy

• Insulation Type: XHHW-2 (Cross-linked Polyethylene)

• Voltage Rating: 600V

• Temperature Rating: 90°C (Wet/Dry)

• Ampacity: 280 Amps (@ 90°C) | 250 Amps (@ 75°C)

• Configuration: Parallel-Twisted (Priority-Plex®)

Common Applications

• Industrial Main Feeders: Supplying power to 480V distribution panels and large motor control centers (MCCs).

• Commercial High-Voltage Services: Primary power for hospitals, large retail centers, and high-rise office buildings.

• Water Treatment & Pumping: Ideal for powering large 3-phase pumps and industrial mechanical equipment.

• Data Centers: Efficient high-voltage power distribution for server room infrastructure and industrial cooling.

• Electric Vehicle (EV) Fast Charging Hubs: Using aluminum 350 MCM allows for a cost-effective installation of large-scale charging "banks" in parking structures or transit hubs where multiple chargers are running simultaneously.

Technical Note: Ensure all terminations are made using AL9CU-rated mechanical or compression connectors. For high-voltage 350 MCM runs, verify that the conduit size is adequate for the twisted bundle diameter per NEC Chapter 9 requirements. Always use an approved antioxidant compound on all aluminum-to-copper or aluminum-to-aluminum connections.

CABLE CONFIGURATION: 4C (BRN-ORG-YEL-GRY) Twisted Bundle

PRIORITY PART#: 350-04PPLEX-BOYG

General Shipping Information

In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.

You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.

Expedited Shipping

Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).

Returns

You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.

Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.

Orders on any items with a material value of $50 or less are non-returnable.