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

This 350 MCM 4-conductor Priority-Plex® assembly with an integrated 1/0 Ground is a heavy-duty feeder solution for 277/480V 3-phase, 4-wire systems. By factory-twisting the heavy-gauge phases (Brown, Orange, Yellow), the neutral (Gray), and a 1/0 AWG Green ground, this system provides a complete, code-compliant circuit in a single bundle, maximizing efficiency for industrial installations.

Why Choose Priority-Plex® 350 MCM with 1/0 Ground?

At the 350 MCM size, conductors are stiff and maintain significant "memory" from the reel. Traditional pulls of five separate wires often result in "bird-caging" or uneven tension. Priority-Plex® technology eliminates these risks by providing a pre-twisted assembly that pulls as a single unit. The 1/0 ground is sized to meet standard NEC requirements for the overcurrent protection typically associated with 350 MCM aluminum.

• Optimized Grounding: The 1/0 AWG Green ground is factory-integrated, ensuring a reliable low-impedance ground path while keeping the overall bundle diameter manageable for standard conduit sizes.

• 480V Phase Identification: Permanent, factory-colored insulation (Brown, Orange, Yellow, Gray) provides instant phase identification for high-voltage systems, eliminating the labor and human error of field-taping.

• Reduced Friction Geometry: The factory-twisted configuration keeps the ground wire tucked within the bundle, reducing the surface contact area with the conduit wall and lowering total pulling tension.

• Rugged XHHW-2 Insulation: The XLPE (Cross-linked Polyethylene) jacket is tougher than standard PVC, offering superior resistance to the physical stresses of industrial pulls and a 90°C rating in both wet and dry locations.

Technical Specifications: 350 MCM 4C + 1/0G

• Phase/Neutral Size: 350 MCM (kcmil)

• Ground Size: 1/0 AWG

• Number of Conductors: 5 (Brown, Orange, Yellow, Gray, Green Ground)

• 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 from main switchgear to large motor control centers (MCCs) and distribution panels.

• Commercial 480V Services: Primary service entrances for hospitals, data centers, and high-rise office buildings.

• Water Treatment & Pumping: Powering large 3-phase pumps and industrial mechanical equipment where moisture resistance is critical.

• EV Fast Charging Infrastructure: Providing the 480V input for banks of DC Fast Chargers in commercial parking structures.

Technical Note: When terminating 350 MCM aluminum, ensure you use AL9CU-rated mechanical or compression connectors. Properly wire-brush the conductor and apply an approved antioxidant joint compound to ensure long-term connection integrity. Always verify that your conduit sizing accommodates the 5-conductor twisted bundle diameter per NEC Chapter 9 requirements.

CABLE CONFIGURATION: 4C + 1G (BRN-ORG-YEL-GRY-GRN) Twisted Bundle

PRIORITY PART#: 350-04PPLEX-BOYG-1/0G

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.