The 4/0-4/0-4/0-2/0 Direct Burial Cable, also known as 4/0 Quadruplex URD Cable, is a type of underground aluminum distribution cable designed for secondary power distribution systems. It’s commonly used to deliver power from a pad-mounted transformer to a residential or light commercial building, especially in underground utility systems.
Cable Configuration
The cable is called 4/0-4/0-4/0-2/0 because it has three 4/0 AWG phase conductors and one 2/0 AWG neutral conductor. The larger gauge (4/0) wires are used to carry the phase power, while the smaller 2/0 gauge wire serves as the neutral. The conductors are twisted together in a quadruplex configuration to form a single cable assembly.
Breakdown:
Phase A Conductor: 4/0 AWG Aluminum
Phase B Conductor: 4/0 AWG Aluminum
Phase C Conductor: 4/0 AWG Aluminum
Neutral Conductor: 2/0 AWG Aluminum (usually with yellow stripe or jacket)
This specific arrangement helps balance the electrical load and ensures reliable power transmission over medium distances.
Construction Details
| Component | Description |
|---|---|
| Conductors | Stranded 1350-H19 Aluminum or AA-8000 Series Alloy per ASTM standards |
| Insulation | XLPE (Cross-linked Polyethylene), black color with heat and moisture resistance |
| Identification | Neutral marked with yellow stripe or full yellow jacket |
| Rating | 600 Volts, suitable for direct burial or duct installation |
| Temperature | 90°C wet or dry, sunlight resistant, USE-2 rated |
Key Features of 4/0-4/0-4/0-2/0 Direct Burial Cable
High Current Carrying Capacity: 4/0 AWG aluminum ensures reliable power delivery for secondary distribution.
Direct Burial Rated: No conduit required — saves on installation time and cost.
XLPE Insulation: Provides excellent resistance to heat, moisture, abrasion, oil, and chemicals.
Environmentally Durable: Designed to perform in underground, wet, or dry conditions.
UL 854 Listed & RUS Accepted: Meets industry standards for safety and utility applications.
Common Applications
Underground residential power distribution
Secondary service from pad-mount transformers
Direct burial in residential subdivisions or commercial lots
Utility-to-meter installations
Load-side service cable in rural electrification projects
How is it Different from Standard URD Cable?
While URD cable comes in various configurations (duplex, triplex, quadruplex), the 4/0-4/0-4/0-2/0 cable specifically refers to a quadruplex layout with heavier phase conductors, making it suitable for higher load requirements. It's commonly used when larger homes or small businesses need more electrical power than what smaller URD cables can handle.
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Need Help Choosing the Right URD Cable?
At TOT Wire & Cable, we offer a full range of Quadruplex URD Cables, including the popular 4/0-4/0-4/0-2/0 Direct Burial Cable, ready for fast delivery and competitive pricing. Contact us today for technical support, datasheets, or a quote tailored to your project.

