Maddox’s cast coil transformers are designed, built, and tested in accordance with the highest industry standards including NEMA, ANSI C.57, DOE, and IEEE as applicable. They are engineered for both indoor and outdoor applications and need minimal maintenance due to their rugged construction. Cast coil transformers use environmentally safe insulation systems that don’t require the fire proof vaults and catch basins that liquid filled transformers need. This allows the installation of cast coil transformers inside buildings close to the load, improving overall system regulation and reducing costly secondary line losses. The fiberglass reinforced construction of these units also provides higher short circuit strength and impulse voltage strength.

Single-phase padmount transformers designed to bring underground 1-phase power to homes, and commercial buildings from utility feeds. These units are perfect for urban public locations due to their tamper-proof and low profile design. Maddox specializes in selling single-phase padmounts to non-utility customers in the commercial and industrial space.

Polemounted transformers are the standard for single-phase and three-phase power distribution. Maddox stocks many overhead type transformers for both large and small utility scale applications. Maddox specializes in selling polemount transformers to non-utility customers in the commercial and industrial space.