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Padmount Liquid Filled Transformers

For use on underground power distribution systems

All units are manufactured in accordance with applicable IEEE standards. The transformers are offered with either: Mineral oil or Less Flammable Seed oil. Primary voltages from 2.4 kV to 69 kV in 75 through 20,000 kVA sizes, 600 volt through 25 kV secondary voltage ratings are available.

Schneider Eletric Square D Picture
Padmount Liquid Filled Transformers
  • Features

    3-phase Pad-Mounted Transformers, for use on underground power distribution systems, are best suited for commercial applications in public access areas and where underground service is required. These transformers meet modern design requirements for flexibility and provide a visually pleasing installation. Construction allows installations in locations accessible to the general public without the need for protective fencing or vaults. Standard liquid-filled sizes range from 75 to 5000 kVA with optional kVA ratings up to 20,000 kVA.


    • UL listed
    • Factory Mutual Listing option
    • High efficiency per DOE 2016 Standards
    • Sealed tank construction
    • Mineral oil or Less Flammable Seed oil
    • Higher standard impulse levels than dry type units
    • Self-cooled overload capabilities
    • Copper or aluminum windings
    • Primary Fusing options
    • Surge arrester options
    • Secondary busway connection option


    Get improved energy efficiency, with decreased operating costs. Lower total ownership costs over the life of the transformer.


    Liquid Filled Pad Mounts are ideally suited for apartment buildings, schools, hospitals, shopping centers, or industrial sites.

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