3/0-3/0-1/0 Triplex Aluminum Direct Burial Cable, Hollins URD

"The industry-standard for residential, farm, and light commercial power distribution. Engineered for reliable 600V delivery, this cable is rated for both direct burial and duct installations, featuring sunlight-resistant XLP insulation for long-term underground performance."

Why Electricians Choose 3/0-3/0-1/0 Triplex URD

The 3/0-3/0-1/0 Hollins URD cable is a heavy-duty solution for secondary underground residential power distribution. Engineered to meet the rugged demands of direct burial, it provides a stable, long-term solution for moving power from the transformer to the service entrance. By utilizing high-conductivity 1350-H19 aluminum and a sunlight-resistant XLP insulation, it offers superior resistance to environmental degradation and moisture ingress.

• 600V Reliability: Rated for continuous operation in wet or dry locations at temperatures up to 90°C.

• Sunlight-Resistant XLP: Advanced cross-linked polyethylene insulation prevents premature aging caused by UV exposure, ensuring durability at the service entrance.

• Easy-Identify Neutral: For faster installation and safer maintenance, the neutral conductor features three extruded yellow stripes and clear sequential footage markings.

• Direct Burial Ready: Specifically built for the harsh conditions of underground utility distribution; can be installed directly in the earth or within conduit/duct systems.

Technical Specifications: 3/0-3/0-1/0 Triplex URD

ENGINEERING OVERVIEW: 3/0-3/0-1/0 Aluminum Hollins

• Application: Secondary underground distribution circuits; transformer-to-service-entrance power feeds.

• Voltage Rating: 600 Volts.

• UL Listing: UL 854 (Service-Entrance Cable).

• Conductor Material: Concentric stranded 1350-H19 series aluminum.

• Phase Insulation: Black sunlight-resistant XLP (Cross-Linked Polyethylene).

• Neutral Insulation: Black XLP with 3 extruded yellow stripes for easy identification.

• Temperature Rating: 90°C (Wet or Dry).

• Cable Outer Diameter: 1.30 inches (33.02 mm)

• Ampacity (Direct Burial): 280 Amps.

• Ampacity (In Duct): 205 Amps.

• Compliance Standards: UL 854 (Service-Entrance Cable); Type USE-2; RUS Accepted; ASTM B-230, B-231, B-609, B-901; ICEA S-105-692; Federal Spec A-A-59544A.

Common 3/0-3/0-1/0 Triplex URD Applications

• Service Entrance Conductors: Primary power feed from the transformer to the main distribution panel of a residential building.

• Service Upgrades: Ideal for replacing older, undersized service conductors to support increased modern electrical loads.

• Branch Circuit Feeders: High-amperage power transmission to secondary distribution hubs, outbuildings, or detached garages.

• Commercial Site Development: Reliable power delivery for small-to-medium business infrastructure and exterior utility equipment.

• Direct Burial or Conduit: Versatile enough for direct-trench installation or pull-through duct/conduit runs.
  
  

Technical Note: All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyer’s responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.

Ampacity: 90°C conductor temperature, 20°C ambient temperature, RHO 90, 100% load factor. Single and Quadruplex based on 3/C. Neutral wire carries unbalanced load only. Reference NEC article 310.15 for NEC installations.

⚠️ The applications listed below are for informational and educational purposes only. Electrical code requirements vary significantly by region. Always consult a licensed electrician and your local building authority to verify compliance with the National Electrical Code (NEC®) for your specific project before purchasing or installing cable.

Common 3/0-3/0-1/0 Triplex URD Use Cases

• Residential Underground Service Entrances: Used as secondary distribution conductors to run power underground from a utility-owned transformer or pedestal to a residential meter socket or main breaker panel.
• 200-Amp Sub-Panel Feeders: The ideal, cost-effective wire size for feeding a 200A outdoor sub-panel, detached workshop, home addition, or accessory dwelling unit (ADU) where direct burial is required.
• Agricultural Power Infrastructure: Perfect for long-run trenching across farms and ranches to deliver 600V reliable power to deep-well water pumps, livestock barns, and detached equipment sheds.
• Mobile Home & RV Park Distribution: Deployed extensively in multi-family and trailer park developments to route underground power from a main utility service disconnect to individual tenant meter pedestals.
• Dual-Rated USE-2 Compliance Projects: Suitable for installations requiring strict UL 854 and Type USE-2 ratings, allowing the cable to transition seamlessly from a direct-burial trench up into an outdoor service enclosure without an extra junction box.
• Conduit and Duct Pulls: Engineered with high-strength XLP insulation and low-friction jacket properties, making it highly reliable for pulling through Schedule 40 or Schedule 80 PVC conduit networks beneath driveways or parking lots.
• Green Energy & Solar Microgrids: Utilized as secondary power collection lines to transfer AC power output from commercial solar arrays or battery storage hubs back to a central distribution board.

👥 Who Relies on 3/0 Triplex URD?

Target Industries

• Residential & Commercial Construction: Used heavily in new housing developments, master-planned communities, and light commercial strip malls for clean, underground grid connectivity.
• Agriculture & Farming: Deployed across commercial farms, dairies, and ranches to safely route power across expansive acreage without the hazards of overhead lines.
• Civil & Utility Infrastructure: Selected by municipal utility districts and co-ops for secondary residential distribution networks.
• Renewable Energy Sector: Integrated into solar farm installations and wind energy microgrids to handle low-voltage AC power transmission from inverter banks.

Core Professionals & Buyers

• Electrical Contractors (Residential/Commercial): The primary installers who purchase this cable for large-scale service upgrades, new builds, and multi-family complexes.
• Project Managers & Estimators: Procurement professionals tracking project overhead who rely on this cost-effective aluminum alternative over expensive copper.
• Utility Linemen & Grid Technicians: Field specialists tasked with maintaining or upgrading secondary service drops from transformer enclosures.
• Property Developers & General Contractors: Decision-makers coordinating total site utility layouts who need a dependable, code-compliant, direct-burial solution that passes inspections on the first run.

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.