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This is quadruplex aluminum URD cable for secondary underground power distribution: three 250 kcmil phase conductors plus a 3/0 neutral, rated 600V. It is rated 325 amps in direct burial and 210 amps in duct, with XLPE insulation and a 90°C maximum conductor temperature for wet or dry locations. It suits utility, commercial and large residential service runs where aluminum direct-burial cable is standard. Against copper URD it is lighter and easier to pull but needs proper aluminum-rated connectors and antioxidant; the quadruplex assembly saves pulling three separate runs.
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Rated 5 out of 5 across 22 ratings, buyers describe it as solid, correctly sized cable that pulls and terminates as expected.
This is a quadruplex aluminum URD (underground residential distribution) cable rated for 600V. It has three 250 AWG phase conductors and one 3/0 AWG neutral. It is designed for secondary power distribution in underground electrical systems and can be direct buried or installed in duct.
The conductors are 1350-H19 series aluminum, either concentric strand or compressed. They are cabled together and printed on the surface for identification. The neutral conductor has a yellow stripe. The insulation is black cross-linked polyethylene (XLPE), which is watertight and resistant to corrosive substances, oil, heat and flame.
The maximum operating temperature is 90°C in wet and dry locations. It is used for medium-load secondary distribution, such as powering service meters from pad-mounted transformers, supplying small commercial buildings, schools and municipal facilities, and serving residential subdivisions. It also connects small solar and wind installations and supports temporary construction power.
