(870) 534-5332

Since 1949, Central Moloney, Inc. has enjoyed a reputation for outstanding design and manufacture of Single-Phase Overhead Distribution Transformers.  We offer a complete line of single-phase overhead distribution transformers including conventional, completely self-protected and step-up / step-down and auto-type designs that meets all applicable ANSI, NEMA and RUS standards.

Standard FeaturesOptional Features, Accessories and Design StandardsProduct ScopeFactory Stocking Program

  Meets or exceeds latest applicable ANSI, NEMA and RUS standards as applicable

  Shell-form core designs

  All coils are wound with adhesive coated Kraft layer insulation

  Adjustable J-bolt frame and blocking add to short circuit withstand

  In-house short circuit testing capability allows for audit testing as required

  Non-interlaced low voltages

  Wet-processed porcelain high-voltage bushings

  Molded polymer low voltage bushings

  Mild steel tank, cover and clamping ring are standard.

  Continuous welding of hanger bracket, lifting lugs and ground bosses

  Tank rim is rolled 360° to provide superior cover retention

  Tin-plated bronze terminals suitable for either copper or aluminum connection

  Low-voltage grounding provisions

  Low-voltage bushing ground strap on one-bushing units

  Low-voltage leads permanently marked internally

  Cover is grounded externally to the upper hanger bracket

  Automatic pressure relief valve to safely relieve internal pressure

  Mineral oil with inhibitor

  Tank grounding provision

  Tank grounding connector on single bushing transformers

  Tank, cover and clamping ring surfaces are chemically etched in preparation for painting

  Tank, cover and clamping ring are powder coated

  Tank cover insulated to 10 KV

  Aluminum laser-engraved nameplate

  KVA marking on tank

  20° C cold oil level marked internally

  Low-voltage circuit breaker on self-protected units

  External, tank-mounted arrester on self-protected units

  Internal block mounted high-voltage expulsion fuse on self-protected units

  Total or partial 409 or 304 series stainless steel designs are available

  Lightning arrester mounting provisions (standard on self-protected transformers)

  Lightning arrester, externally-mounted or internally-mounted under oil (externally-mounted lightning arrester standard on self-protected transformers)

  High-voltage taps are available

  Dual high-voltage switch with external operating handle

  Dual low-voltage switch (available only on step-up/step-down transformers)

  Interlaced low-voltage windings

  Wildlife protection

  Magnex Interrupter Switch

  Emergency overload reset handle (available only on self-protected transformers)

  Tank ground connector (standard on one-bushing transformers)

  Low-voltage winding ground strap (standard on one-bushing transformers except step-up / step-down units)

  Custom stenciling and labeling


  Laser engraved stainless steel nameplate

  FR3 Fluid

  Rural Utilities Service (RUS) design standards

  Canadian Standards Association (CSA) design standards

  Other non-U.S. design standards

  NEMA TP-1 compliant designs

  DOE Efficiency Ruling compliant designs available

Central Moloney, Inc. stocks a wide variety of single-phase distribution transformers that are available for immediate shipment from our factory in Pine Bluff, Arkansas.

If you want a single-phase overhead distribution transformer that is reliable for years to come, buy one from Central Moloney, Inc.