“Designed for 600V secondary power distribution, this #4 AWG Duplex URD cable (Delgado) is built for rugged underground performance. Featuring one insulated phase conductor and one neutral, it uses sunlight-resistant XLPE insulation and is rated for both direct burial and duct installations. Built with 1350-H19 Series Aluminum, it provides a high-strength, cost-effective solution for heavy-duty outdoor lighting and residential sub-panel feeds.”

Why Electricians Choose #4 Aluminum Duplex URD Cable?

This cable is the professional standard for 120V secondary underground power. Its1350-H19 Series Aluminum Alloy construction and XLP insulation provide a lightweight, corrosion-resistant alternative to copper that is significantly more cost-effective for long trench runs.

• 600V Power Rating: Delivers consistent performance in wet or dry locations up to 90C.

• Direct Burial Rated: Engineered to be buried directly in the earth without the need for expensive conduit runs.

• Sunlight Resistant: The black XLP insulation is UV-stabilized to prevent degradation where the cable is exposed above ground.

• Streamlined Installation: The Duplex “configuration is optimized for single-phase 120V circuits, reducing material waste and installation time.

Technical Specifications: #4-4 Duplex URD Cable

• Code Name: Delgado

• Conductor Size: #4 AWG

• Conductor Material: Stranded 1350-H19 Aluminum Alloy

• Configuration: Duplex (1 Insulated Phase, 1 Neutral)

• Voltage: 600V

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

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

• Max Temp: 90C (Wet/Dry)

• Overall Diameter (OD):0.69 inches (17.526 mm)

• Ampacity (Direct Burial): 125 Amps

• Ampacity (In Duct): 90 Amps

• Conductor Material: 1350-H19 Aluminum Alloy

• Standards: UL 854 (Type USE-2), ASTM B230, B231, B901, ICEA S-105-692

Common Applications

• High-Output Municipal Lighting: The standard for major highway illumination and large parking lot lighting circuits.

• Workshop & Large Outbuildings: Ideal for running a high-amperage 120V sub-feed to remote garages, workshops, or barn equipment.

• EV Charging (Level 1): Provides a robust dedicated circuit for remote vehicle charging stations.

• Agricultural Power: Powering heavy-duty irrigation pumps and automated feeding systems in wet or damp soil conditions.

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

*All values are nominal and subject to correction. *Ampacity: for 3 cables triplexed, 90C conductor temperature, 20C ambient temperature, RHO 90, 100% load factor.